Climate Change in Forsyth, Montana

96+ years of recorded temperature data show Forsyth is warming.

Based on our analysis of 96 years of temperature data near Forsyth, MT, this area shows a warming trend of approximately +0.2°F per decade. 8 of the last 10 years recorded above-average temperatures, and 2012 was the warmest year on record at +4.1°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.2°F

per decade

Warmest Year

2012

+4.1°F anomaly

Recent Warm Years

8 / 10

above-average years

Decade Shift

+1.1°F

2020s vs 1930s

Compared to the National Average

Forsyth is warming at roughly the national average rate.

National: +0.20°F/decade
Forsyth: +0.19°F/decade

Climate Spiral

Each ring represents one year of monthly temperatures. Blue indicates cooler-than-average periods; red indicates warmer. The outward drift over time reveals Forsyth's long-term warming trend.

Temperature anomaly spiral for Forsyth, Montana
Climate spiral: monthly temperature anomalies from 96+ years of NOAA records for Forsyth, MT.

Warming Stripes

Each vertical stripe represents one year. The color gradient from blue to red shows how annual temperatures have shifted relative to the historical average.

Warming stripes for Forsyth, Montana
Warming stripes: each stripe is one year of average temperature anomaly for Forsyth, MT.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.19°F per decade quantifies the rate of change.

Temperature trend chart for Forsyth, Montana
Linear trend: annual temperature anomalies with trend line for Forsyth, MT.

Temperature by Decade

1930s
+1.16°F
1940s
+0.04°F
1950s
-0.81°F
1960s
-0.46°F
1970s
-0.84°F
1980s
+0.87°F
1990s
+1.17°F
2000s
+1.65°F
2010s
+1.09°F
2020s
+2.49°F

Average temperature anomaly per decade relative to the historical baseline period.

Anomaly Scale

-8.3°F Colder Normal +8.6°F Warmer

Color bounds are set to the 5th and 95th percentile of anomalies to avoid outlier washout.

Monthly Temperature Records

Complete monthly temperature record for Forsyth, MT. Filter by decade or download as CSV.

Data Sources & Audit

Station
nClimGrid 5km Grid Point
Distance
0.7 mi
Coverage
99.1%
Records
1,154
Range
1930-01 – 2026-02
Full Data Audit 1,154 records
YearMonthTempBaselineAnomalySourceGap
1930Jan1.5°F16.4°F-14.9°NCLIMGRID
1930Feb33.7°F23.9°F+9.8°NCLIMGRID
1930Mar32.0°F33.6°F-1.6°NCLIMGRID
1930Apr52.8°F44.4°F+8.5°NCLIMGRID
1930May53.5°F54.0°F-0.6°NCLIMGRID
1930Jun64.0°F63.6°F+0.4°NCLIMGRID
1930Jul75.9°F70.7°F+5.3°NCLIMGRID
1930Aug73.3°F68.9°F+4.4°NCLIMGRID
1930Sep58.8°F57.7°F+1.1°NCLIMGRID
1930Oct40.3°F45.6°F-5.3°NCLIMGRID
1930Nov33.0°F30.7°F+2.3°NCLIMGRID
1930Dec28.8°F20.1°F+8.7°NCLIMGRID
1931Jan27.7°F16.4°F+11.4°NCLIMGRID
1931Feb32.9°F23.9°F+9.1°NCLIMGRID
1931Mar32.5°F33.6°F-1.1°NCLIMGRID
1931Apr46.7°F44.4°F+2.3°NCLIMGRID
1931May55.4°F54.0°F+1.4°NCLIMGRID
1931Jun69.7°F63.6°F+6.1°NCLIMGRID
1931Jul72.6°F70.7°F+2.0°NCLIMGRID
1931Aug70.8°F68.9°F+1.9°NCLIMGRID
1931Sep61.6°F57.7°F+3.9°NCLIMGRID
1931Oct47.3°F45.6°F+1.7°NCLIMGRID
1931Nov29.8°F30.7°F-1.0°NCLIMGRID
1931Dec23.1°F20.1°F+3.0°NCLIMGRID
1932Jan15.9°F16.4°F-0.4°NCLIMGRID
1932Feb23.4°F23.9°F-0.5°NCLIMGRID
1932Mar23.8°F33.6°F-9.8°NCLIMGRID
1932Apr47.3°F44.4°F+3.0°NCLIMGRID
1932May56.2°F54.0°F+2.1°NCLIMGRID
1932Jun65.2°F63.6°F+1.6°NCLIMGRID
1932Jul72.7°F70.7°F+2.0°NCLIMGRID
1932Aug70.2°F68.9°F+1.3°NCLIMGRID
1932Sep57.4°F57.7°F-0.3°NCLIMGRID
1932Oct41.4°F45.6°F-4.2°NCLIMGRID
1932Nov33.2°F30.7°F+2.5°NCLIMGRID
1932Dec15.8°F20.1°F-4.3°NCLIMGRID
1933Jan19.4°F16.4°F+3.0°NCLIMGRID
1933Feb15.1°F23.9°F-8.7°NCLIMGRID
1933Mar35.9°F33.6°F+2.3°NCLIMGRID
1933Apr42.0°F44.4°F-2.4°NCLIMGRID
1933May52.9°F54.0°F-1.1°NCLIMGRID
1933Jun70.5°F63.6°F+6.9°NCLIMGRID
1933Jul76.2°F70.7°F+5.5°NCLIMGRID
1933Aug68.8°F68.9°F-0.2°NCLIMGRID
1933Sep59.3°F57.7°F+1.6°NCLIMGRID
1933Oct46.9°F45.6°F+1.3°NCLIMGRID
1933Nov35.3°F30.7°F+4.5°NCLIMGRID
1933Dec19.4°F20.1°F-0.7°NCLIMGRID
1934Jan27.0°F16.4°F+10.6°NCLIMGRID
1934Feb31.0°F23.9°F+7.2°NCLIMGRID
1934Mar34.5°F33.6°F+0.9°NCLIMGRID
1934Apr47.9°F44.4°F+3.5°NCLIMGRID
1934May63.8°F54.0°F+9.7°NCLIMGRID
1934Jun65.1°F63.6°F+1.5°NCLIMGRID
1934Jul75.0°F70.7°F+4.4°NCLIMGRID
1934Aug69.2°F68.9°F+0.2°NCLIMGRID
1934Sep53.4°F57.7°F-4.3°NCLIMGRID
1934Oct50.0°F45.6°F+4.4°NCLIMGRID
1934Nov37.6°F30.7°F+6.9°NCLIMGRID
1934Dec22.1°F20.1°F+2.0°NCLIMGRID
1935Jan14.8°F16.4°F-1.6°NCLIMGRID
1935Feb31.5°F23.9°F+7.6°NCLIMGRID
1935Mar29.4°F33.6°F-4.2°NCLIMGRID
1935Apr39.9°F44.4°F-4.5°NCLIMGRID
1935May50.5°F54.0°F-3.5°NCLIMGRID
1935Jun62.4°F63.6°F-1.2°NCLIMGRID
1935Jul74.8°F70.7°F+4.1°NCLIMGRID
1935Aug68.5°F68.9°F-0.4°NCLIMGRID
1935Sep59.9°F57.7°F+2.2°NCLIMGRID
1935Oct45.4°F45.6°F-0.1°NCLIMGRID
1935Nov27.3°F30.7°F-3.4°NCLIMGRID
1935Dec26.2°F20.1°F+6.1°NCLIMGRID
1936Jan13.1°F16.4°F-3.3°NCLIMGRID
1936Feb-5.6°F23.9°F-29.4°NCLIMGRID
1936Mar32.7°F33.6°F-0.9°NCLIMGRID
1936Apr42.9°F44.4°F-1.5°NCLIMGRID
1936May62.2°F54.0°F+8.2°NCLIMGRID
1936Jun70.1°F63.6°F+6.6°NCLIMGRID
1936Jul80.6°F70.7°F+9.9°NCLIMGRID
1936Aug71.9°F68.9°F+2.9°NCLIMGRID
1936Sep61.5°F57.7°F+3.8°NCLIMGRID
1936Oct47.6°F45.6°F+2.0°NCLIMGRID
1936Nov32.5°F30.7°F+1.7°NCLIMGRID
1936Dec20.5°F20.1°F+0.4°NCLIMGRID
1937Jan-3.1°F16.4°F-19.5°NCLIMGRID
1937Feb14.7°F23.9°F-9.2°NCLIMGRID
1937Mar30.1°F33.6°F-3.5°NCLIMGRID
1937Apr44.7°F44.4°F+0.3°NCLIMGRID
1937May59.1°F54.0°F+5.0°NCLIMGRID
1937Jun64.1°F63.6°F+0.5°NCLIMGRID
1937Jul73.8°F70.7°F+3.1°NCLIMGRID
1937Aug70.8°F68.9°F+1.8°NCLIMGRID
1937Sep60.0°F57.7°F+2.3°NCLIMGRID
1937Oct48.1°F45.6°F+2.6°NCLIMGRID
1937Nov30.2°F30.7°F-0.5°NCLIMGRID
1937Dec19.0°F20.1°F-1.1°NCLIMGRID
1938Jan23.6°F16.4°F+7.3°NCLIMGRID
1938Feb15.3°F23.9°F-8.6°NCLIMGRID
1938Mar35.2°F33.6°F+1.6°NCLIMGRID
1938Apr45.2°F44.4°F+0.8°NCLIMGRID
1938May52.8°F54.0°F-1.2°NCLIMGRID
1938Jun66.0°F63.6°F+2.4°NCLIMGRID
1938Jul70.3°F70.7°F-0.3°NCLIMGRID
1938Aug67.9°F68.9°F-1.1°NCLIMGRID
1938Sep63.9°F57.7°F+6.2°NCLIMGRID
1938Oct49.9°F45.6°F+4.3°NCLIMGRID
1938Nov29.0°F30.7°F-1.7°NCLIMGRID
1938Dec25.6°F20.1°F+5.5°NCLIMGRID
1939Jan28.0°F16.4°F+11.7°NCLIMGRID
1939Feb12.6°F23.9°F-11.3°NCLIMGRID
1939Mar34.6°F33.6°F+0.9°NCLIMGRID
1939Apr47.2°F44.4°F+2.8°NCLIMGRID
1939May59.6°F54.0°F+5.6°NCLIMGRID
1939Jun60.1°F63.6°F-3.5°NCLIMGRID
1939Jul74.4°F70.7°F+3.7°NCLIMGRID
1939Aug68.7°F68.9°F-0.2°NCLIMGRID
1939Sep60.1°F57.7°F+2.4°NCLIMGRID
1939Oct46.7°F45.6°F+1.1°NCLIMGRID
1939Nov37.0°F30.7°F+6.3°NCLIMGRID
1939Dec30.4°F20.1°F+10.3°NCLIMGRID
1940Jan8.1°F16.4°F-8.3°NCLIMGRID
1940Feb22.7°F23.9°F-1.2°NCLIMGRID
1940Mar35.7°F33.6°F+2.1°NCLIMGRID
1940Apr41.6°F44.4°F-2.8°NCLIMGRID
1940May57.1°F54.0°F+3.1°NCLIMGRID
1940Jun65.4°F63.6°F+1.9°NCLIMGRID
1940Jul73.3°F70.7°F+2.6°NCLIMGRID
1940Aug70.6°F68.9°F+1.7°NCLIMGRID
1940Sep64.5°F57.7°F+6.8°NCLIMGRID
1940Oct51.1°F45.6°F+5.5°NCLIMGRID
1940Nov24.7°F30.7°F-6.0°NCLIMGRID
1940Dec26.5°F20.1°F+6.4°NCLIMGRID
1941Jan22.6°F16.4°F+6.2°NCLIMGRID
1941Feb26.9°F23.9°F+3.0°NCLIMGRID
1941Mar33.3°F33.6°F-0.3°NCLIMGRID
1941Apr43.5°F44.4°F-0.8°NCLIMGRID
1941May58.6°F54.0°F+4.6°NCLIMGRID
1941Jun64.3°F63.6°F+0.8°NCLIMGRID
1941Jul72.9°F70.7°F+2.2°NCLIMGRID
1941Aug70.4°F68.9°F+1.4°NCLIMGRID
1941Sep53.7°F57.7°F-4.0°NCLIMGRID
1941Oct44.0°F45.6°F-1.6°NCLIMGRID
1941Nov34.5°F30.7°F+3.8°NCLIMGRID
1941Dec24.0°F20.1°F+3.9°NCLIMGRID
1942Jan20.2°F16.4°F+3.8°NCLIMGRID
1942Feb20.5°F23.9°F-3.4°NCLIMGRID
1942Mar33.0°F33.6°F-0.6°NCLIMGRID
1942Apr47.3°F44.4°F+2.9°NCLIMGRID
1942May50.5°F54.0°F-3.5°NCLIMGRID
1942Jun59.8°F63.6°F-3.7°NCLIMGRID
1942Jul70.9°F70.7°F+0.3°NCLIMGRID
1942Aug68.2°F68.9°F-0.7°NCLIMGRID
1942Sep57.2°F57.7°F-0.5°NCLIMGRID
1942Oct47.5°F45.6°F+1.9°NCLIMGRID
1942Nov31.7°F30.7°F+0.9°NCLIMGRID
1942Dec22.7°F20.1°F+2.6°NCLIMGRID
1943Jan6.4°F16.4°F-10.0°NCLIMGRID
1943Feb28.0°F23.9°F+4.1°NCLIMGRID
1943Mar24.0°F33.6°F-9.6°NCLIMGRID
1943Apr50.4°F44.4°F+6.0°NCLIMGRID
1943May52.0°F54.0°F-2.0°NCLIMGRID
1943Jun60.5°F63.6°F-3.0°NCLIMGRID
1943Jul71.5°F70.7°F+0.8°NCLIMGRID
1943Aug70.2°F68.9°F+1.2°NCLIMGRID
1943Sep57.7°F57.7°F+0.0°NCLIMGRID
1943Oct48.9°F45.6°F+3.3°NCLIMGRID
1943Nov33.6°F30.7°F+2.9°NCLIMGRID
1943Dec28.2°F20.1°F+8.1°NCLIMGRID
1944Jan25.4°F16.4°F+9.0°NCLIMGRID
1944Feb21.4°F23.9°F-2.4°NCLIMGRID
1944Mar25.0°F33.6°F-8.6°NCLIMGRID
1944Apr45.7°F44.4°F+1.3°NCLIMGRID
1944May57.8°F54.0°F+3.7°NCLIMGRID
1944Jun59.1°F63.6°F-4.4°NCLIMGRID
1944Jul68.1°F70.7°F-2.5°NCLIMGRID
1944Aug65.4°F68.9°F-3.6°NCLIMGRID
1944Sep57.6°F57.7°F-0.1°NCLIMGRID
1944Oct50.2°F45.6°F+4.6°NCLIMGRID
1944Nov29.5°F30.7°F-1.3°NCLIMGRID
1944Dec20.2°F20.1°F+0.1°NCLIMGRID
1945Jan19.7°F16.4°F+3.3°NCLIMGRID
1945Feb23.5°F23.9°F-0.4°NCLIMGRID
1945Mar35.7°F33.6°F+2.0°NCLIMGRID
1945Apr40.2°F44.4°F-4.2°NCLIMGRID
1945May51.0°F54.0°F-3.1°NCLIMGRID
1945Jun57.5°F63.6°F-6.0°NCLIMGRID
1945Jul71.5°F70.7°F+0.8°NCLIMGRID
1945Aug69.0°F68.9°F+0.0°NCLIMGRID
1945Sep54.9°F57.7°F-2.8°NCLIMGRID
1945Oct47.5°F45.6°F+1.9°NCLIMGRID
1945Nov30.3°F30.7°F-0.4°NCLIMGRID
1945Dec16.2°F20.1°F-3.9°NCLIMGRID
1946Jan25.7°F16.4°F+9.3°NCLIMGRID
1946Feb26.0°F23.9°F+2.2°NCLIMGRID
1946Mar39.9°F33.6°F+6.3°NCLIMGRID
1946Apr50.5°F44.4°F+6.2°NCLIMGRID
1946May51.0°F54.0°F-3.0°NCLIMGRID
1946Jun61.9°F63.6°F-1.7°NCLIMGRID
1946Jul72.5°F70.7°F+1.9°NCLIMGRID
1946Aug67.4°F68.9°F-1.6°NCLIMGRID
1946Sep56.4°F57.7°F-1.3°NCLIMGRID
1946Oct40.2°F45.6°F-5.3°NCLIMGRID
1946Nov27.2°F30.7°F-3.5°NCLIMGRID
1946Dec21.7°F20.1°F+1.6°NCLIMGRID
1947Jan23.1°F16.4°F+6.7°NCLIMGRID
1947Feb19.3°F23.9°F-4.5°NCLIMGRID
1947Mar24.8°F33.6°F-8.8°NCLIMGRID
1947Apr41.4°F44.4°F-3.0°NCLIMGRID
1947May53.0°F54.0°F-1.1°NCLIMGRID
1947Jun59.2°F63.6°F-4.3°NCLIMGRID
1947Jul74.5°F70.7°F+3.8°NCLIMGRID
1947Aug71.3°F68.9°F+2.3°NCLIMGRID
1947Sep58.1°F57.7°F+0.4°NCLIMGRID
1947Oct50.6°F45.6°F+5.0°NCLIMGRID
1947Nov27.3°F30.7°F-3.4°NCLIMGRID
1947Dec24.1°F20.1°F+4.0°NCLIMGRID
1948Jan23.1°F16.4°F+6.7°NCLIMGRID
1948Feb19.7°F23.9°F-4.2°NCLIMGRID
1948Mar27.4°F33.6°F-6.2°NCLIMGRID
1948Apr46.2°F44.4°F+1.9°NCLIMGRID
1948May56.1°F54.0°F+2.1°NCLIMGRID
1948Jun63.8°F63.6°F+0.2°NCLIMGRID
1948Jul70.0°F70.7°F-0.7°NCLIMGRID
1948Aug71.6°F68.9°F+2.6°NCLIMGRID
1948Sep62.4°F57.7°F+4.7°NCLIMGRID
1948Oct46.5°F45.6°F+1.0°NCLIMGRID
1948Nov32.2°F30.7°F+1.4°NCLIMGRID
1948Dec12.9°F20.1°F-7.2°NCLIMGRID
1949Jan2.0°F16.4°F-14.4°NCLIMGRID
1949Feb10.4°F23.9°F-13.5°NCLIMGRID
1949Mar26.4°F33.6°F-7.2°NCLIMGRID
1949Apr50.1°F44.4°F+5.7°NCLIMGRID
1949May58.2°F54.0°F+4.2°NCLIMGRID
1949Jun63.7°F63.6°F+0.1°NCLIMGRID
1949Jul70.3°F70.7°F-0.4°NCLIMGRID
1949Aug72.2°F68.9°F+3.2°NCLIMGRID
1949Sep56.2°F57.7°F-1.5°NCLIMGRID
1949Oct42.0°F45.6°F-3.5°NCLIMGRID
1949Nov42.1°F30.7°F+11.4°NCLIMGRID
1949Dec14.8°F20.1°F-5.3°NCLIMGRID
1950Jan-5.2°F16.4°F-21.6°NCLIMGRID
1950Feb23.1°F23.9°F-0.8°NCLIMGRID
1950Mar26.5°F33.6°F-7.1°NCLIMGRID
1950Apr40.1°F44.4°F-4.3°NCLIMGRID
1950May49.4°F54.0°F-4.6°NCLIMGRID
1950Jun60.1°F63.6°F-3.5°NCLIMGRID
1950Jul67.1°F70.7°F-3.6°NCLIMGRID
1950Aug66.0°F68.9°F-2.9°NCLIMGRID
1950Sep57.1°F57.7°F-0.6°NCLIMGRID
1950Oct49.4°F45.6°F+3.8°NCLIMGRID
1950Nov26.5°F30.7°F-4.2°NCLIMGRID
1950Dec25.7°F20.1°F+5.6°NCLIMGRID
1951Jan14.7°F16.4°F-1.7°NCLIMGRID
1951Feb22.1°F23.9°F-1.8°NCLIMGRID
1951Mar19.2°F33.6°F-14.4°NCLIMGRID
1951Apr39.3°F44.4°F-5.1°NCLIMGRID
1951May55.3°F54.0°F+1.3°NCLIMGRID
1951Jun56.5°F63.6°F-7.0°NCLIMGRID
1951Jul70.6°F70.7°F-0.1°NCLIMGRID
1951Aug66.7°F68.9°F-2.3°NCLIMGRID
1951Sep52.6°F57.7°F-5.1°NCLIMGRID
1951Oct42.1°F45.6°F-3.5°NCLIMGRID
1951Nov30.5°F30.7°F-0.3°NCLIMGRID
1951Dec10.8°F20.1°F-9.3°NCLIMGRID
1952Jan7.6°F16.4°F-8.8°NCLIMGRID
1952Feb22.0°F23.9°F-1.9°NCLIMGRID
1952Mar24.0°F33.6°F-9.6°NCLIMGRID
1952Apr49.4°F44.4°F+5.0°NCLIMGRID
1952May56.4°F54.0°F+2.4°NCLIMGRID
1952Jun66.5°F63.6°F+2.9°NCLIMGRID
1952Jul69.9°F70.7°F-0.8°NCLIMGRID
1952Aug69.6°F68.9°F+0.7°NCLIMGRID
1952Sep60.9°F57.7°F+3.2°NCLIMGRID
1952Oct45.7°F45.6°F+0.1°NCLIMGRID
1952Nov28.5°F30.7°F-2.3°NCLIMGRID
1952Dec24.5°F20.1°F+4.4°NCLIMGRID
1953Jan28.6°F16.4°F+12.2°NCLIMGRID
1953Feb29.2°F23.9°F+5.3°NCLIMGRID
1953Mar34.6°F33.6°F+1.0°NCLIMGRID
1953Apr37.4°F44.4°F-7.0°NCLIMGRID
1953May49.0°F54.0°F-5.1°NCLIMGRID
1953Jun62.9°F63.6°F-0.7°NCLIMGRID
1953Jul72.2°F70.7°F+1.5°NCLIMGRID
1953Aug69.9°F68.9°F+0.9°NCLIMGRID
1953Sep60.2°F57.7°F+2.5°NCLIMGRID
1953Oct51.6°F45.6°F+6.0°NCLIMGRID
1953Nov38.2°F30.7°F+7.5°NCLIMGRID
1953Dec30.0°F20.1°F+9.9°NCLIMGRID
1954Jan9.7°F16.4°F-6.7°NCLIMGRID
1954Feb37.2°F23.9°F+13.3°NCLIMGRID
1954Mar24.7°F33.6°F-9.0°NCLIMGRID
1954Apr41.0°F44.4°F-3.4°NCLIMGRID
1954May52.3°F54.0°F-1.8°NCLIMGRID
1954Jun60.0°F63.6°F-3.5°NCLIMGRID
1954Jul73.7°F70.7°F+3.0°NCLIMGRID
1954Aug68.3°F68.9°F-0.7°NCLIMGRID
1954Sep57.6°F57.7°F-0.1°NCLIMGRID
1954Oct44.8°F45.6°F-0.8°NCLIMGRID
1954Nov39.5°F30.7°F+8.8°NCLIMGRID
1954Dec28.3°F20.1°F+8.2°NCLIMGRID
1955Jan21.2°F16.4°F+4.8°NCLIMGRID
1955Feb17.9°F23.9°F-5.9°NCLIMGRID
1955Mar26.1°F33.6°F-7.5°NCLIMGRID
1955Apr43.8°F44.4°F-0.6°NCLIMGRID
1955May53.2°F54.0°F-0.9°NCLIMGRID
1955Jun61.2°F63.6°F-2.4°NCLIMGRID
1955Jul71.2°F70.7°F+0.5°NCLIMGRID
1955Aug71.9°F68.9°F+2.9°NCLIMGRID
1955Sep56.8°F57.7°F-0.9°NCLIMGRID
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1984Jan26.0°F16.4°F+9.7°NCLIMGRID
1984Feb34.5°F23.9°F+10.6°NCLIMGRID
1984Mar34.6°F33.6°F+1.0°NCLIMGRID
1984Apr44.2°F44.4°F-0.2°NCLIMGRID
1984May53.1°F54.0°F-1.0°NCLIMGRID
1984Jun62.9°F63.6°F-0.7°NCLIMGRID
1984Jul72.4°F70.7°F+1.7°NCLIMGRID
1984Aug72.6°F68.9°F+3.6°NCLIMGRID
1984Sep53.0°F57.7°F-4.7°NCLIMGRID
1984Oct41.4°F45.6°F-4.2°NCLIMGRID
1984Nov32.0°F30.7°F+1.3°NCLIMGRID
1984Dec9.6°F20.1°F-10.5°NCLIMGRID
1985Jan11.2°F16.4°F-5.1°NCLIMGRID
1985Feb16.2°F23.9°F-7.7°NCLIMGRID
1985Mar32.6°F33.6°F-1.0°NCLIMGRID
1985Apr48.9°F44.4°F+4.6°NCLIMGRID
1985May59.3°F54.0°F+5.3°NCLIMGRID
1985Jun61.4°F63.6°F-2.1°NCLIMGRID
1985Jul72.7°F70.7°F+2.1°NCLIMGRID
1985Aug65.2°F68.9°F-3.8°NCLIMGRID
1985Sep52.3°F57.7°F-5.4°NCLIMGRID
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1986Jan30.1°F16.4°F+13.7°NCLIMGRID
1986Feb19.1°F23.9°F-4.7°NCLIMGRID
1986Mar43.8°F33.6°F+10.1°NCLIMGRID
1986Apr44.0°F44.4°F-0.3°NCLIMGRID
1986May53.2°F54.0°F-0.9°NCLIMGRID
1986Jun68.3°F63.6°F+4.7°NCLIMGRID
1986Jul67.8°F70.7°F-2.8°NCLIMGRID
1986Aug68.7°F68.9°F-0.3°NCLIMGRID
1986Sep53.3°F57.7°F-4.4°NCLIMGRID
1986Oct47.8°F45.6°F+2.2°NCLIMGRID
1986Nov28.9°F30.7°F-1.8°NCLIMGRID
1986Dec27.4°F20.1°F+7.3°NCLIMGRID
1987Jan27.1°F16.4°F+10.7°NCLIMGRID
1987Feb32.5°F23.9°F+8.6°NCLIMGRID
1987Mar35.8°F33.6°F+2.2°NCLIMGRID
1987Apr51.9°F44.4°F+7.5°NCLIMGRID
1987May58.2°F54.0°F+4.2°NCLIMGRID
1987Jun66.3°F63.6°F+2.7°NCLIMGRID
1987Jul69.6°F70.7°F-1.1°NCLIMGRID
1987Aug64.8°F68.9°F-4.2°NCLIMGRID
1987Sep58.5°F57.7°F+0.8°NCLIMGRID
1987Oct45.6°F45.6°F+0.0°NCLIMGRID
1987Nov36.7°F30.7°F+6.0°NCLIMGRID
1987Dec26.0°F20.1°F+5.9°NCLIMGRID
1988Jan18.6°F16.4°F+2.2°NCLIMGRID
1988Feb25.5°F23.9°F+1.6°NCLIMGRID
1988Mar37.0°F33.6°F+3.4°NCLIMGRID
1988Apr48.4°F44.4°F+4.0°NCLIMGRID
1988May60.0°F54.0°F+6.0°NCLIMGRID
1988Jun75.4°F63.6°F+11.8°NCLIMGRID
1988Jul73.5°F70.7°F+2.8°NCLIMGRID
1988Aug69.7°F68.9°F+0.7°NCLIMGRID
1988Sep57.6°F57.7°F-0.1°NCLIMGRID
1988Oct48.4°F45.6°F+2.8°NCLIMGRID
1988Nov33.5°F30.7°F+2.8°NCLIMGRID
1988Dec26.9°F20.1°F+6.8°NCLIMGRID
1989Jan21.6°F16.4°F+5.2°NCLIMGRID
1989Feb9.8°F23.9°F-14.1°NCLIMGRID
1989Mar26.1°F33.6°F-7.5°NCLIMGRID
1989Apr43.9°F44.4°F-0.5°NCLIMGRID
1989May54.0°F54.0°F+0.0°NCLIMGRID
1989Jun62.2°F63.6°F-1.4°NCLIMGRID
1989Jul74.0°F70.7°F+3.4°NCLIMGRID
1989Aug68.6°F68.9°F-0.4°NCLIMGRID
1989Sep58.0°F57.7°F+0.3°NCLIMGRID
1989Oct46.1°F45.6°F+0.5°NCLIMGRID
1989Nov36.0°F30.7°F+5.3°NCLIMGRID
1989Dec18.8°F20.1°F-1.3°NCLIMGRID
1990Jan27.1°F16.4°F+10.8°NCLIMGRID
1990Feb27.7°F23.9°F+3.8°NCLIMGRID
1990Mar36.0°F33.6°F+2.4°NCLIMGRID
1990Apr45.6°F44.4°F+1.3°NCLIMGRID
1990May53.2°F54.0°F-0.9°NCLIMGRID
1990Jun63.9°F63.6°F+0.3°NCLIMGRID
1990Jul70.2°F70.7°F-0.4°NCLIMGRID
1990Aug70.7°F68.9°F+1.8°NCLIMGRID
1990Sep63.4°F57.7°F+5.7°NCLIMGRID
1990Oct46.4°F45.6°F+0.8°NCLIMGRID
1990Nov37.5°F30.7°F+6.8°NCLIMGRID
1990Dec15.6°F20.1°F-4.5°NCLIMGRID
1991Jan15.5°F16.4°F-0.8°NCLIMGRID
1991Feb37.1°F23.9°F+13.2°NCLIMGRID
1991Mar36.2°F33.6°F+2.6°NCLIMGRID
1991Apr44.0°F44.4°F-0.4°NCLIMGRID
1991May53.7°F54.0°F-0.3°NCLIMGRID
1991Jun64.2°F63.6°F+0.6°NCLIMGRID
1991Jul70.4°F70.7°F-0.3°NCLIMGRID
1991Aug72.7°F68.9°F+3.8°NCLIMGRID
1991Sep59.1°F57.7°F+1.4°NCLIMGRID
1991Oct42.4°F45.6°F-3.1°NCLIMGRID
1991Nov29.4°F30.7°F-1.3°NCLIMGRID
1991Dec29.3°F20.1°F+9.2°NCLIMGRID
1992Jan31.2°F16.4°F+14.8°NCLIMGRID
1992Feb34.6°F23.9°F+10.8°NCLIMGRID
1992Mar41.0°F33.6°F+7.4°NCLIMGRID
1992Apr47.0°F44.4°F+2.6°NCLIMGRID
1992May56.5°F54.0°F+2.5°NCLIMGRID
1992Jun65.0°F63.6°F+1.5°NCLIMGRID
1992Jul63.4°F70.7°F-7.2°NCLIMGRID
1992Aug64.1°F68.9°F-4.9°NCLIMGRID
1992Sep57.2°F57.7°F-0.5°NCLIMGRID
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1992Nov32.4°F30.7°F+1.7°NCLIMGRID
1992Dec16.5°F20.1°F-3.6°NCLIMGRID
1993Jan7.8°F16.4°F-8.6°NCLIMGRID
1993Feb10.9°F23.9°F-13.0°NCLIMGRID
1993Mar35.7°F33.6°F+2.1°NCLIMGRID
1993Apr45.7°F44.4°F+1.3°NCLIMGRID
1993May56.8°F54.0°F+2.7°NCLIMGRID
1993Jun60.6°F63.6°F-3.0°NCLIMGRID
1993Jul62.4°F70.7°F-8.2°NCLIMGRID
1993Aug64.2°F68.9°F-4.7°NCLIMGRID
1993Sep54.1°F57.7°F-3.6°NCLIMGRID
1993Oct44.4°F45.6°F-1.2°NCLIMGRID
1993Nov27.7°F30.7°F-3.0°NCLIMGRID
1993Dec28.5°F20.1°F+8.4°NCLIMGRID
1994Jan17.9°F16.4°F+1.5°NCLIMGRID
1994Feb13.4°F23.9°F-10.5°NCLIMGRID
1994Mar38.5°F33.6°F+4.8°NCLIMGRID
1994Apr45.8°F44.4°F+1.5°NCLIMGRID
1994May57.8°F54.0°F+3.8°NCLIMGRID
1994Jun65.0°F63.6°F+1.4°NCLIMGRID
1994Jul70.6°F70.7°F+0.0°NCLIMGRID
1994Aug71.1°F68.9°F+2.2°NCLIMGRID
1994Sep61.8°F57.7°F+4.1°NCLIMGRID
1994Oct45.4°F45.6°F-0.2°NCLIMGRID
1994Nov29.7°F30.7°F-1.0°NCLIMGRID
1994Dec23.7°F20.1°F+3.6°NCLIMGRID
1995Jan25.3°F16.4°F+8.9°NCLIMGRID
1995Feb30.4°F23.9°F+6.5°NCLIMGRID
1995Mar31.2°F33.6°F-2.4°NCLIMGRID
1995Apr41.2°F44.4°F-3.2°NCLIMGRID
1995May50.6°F54.0°F-3.4°NCLIMGRID
1995Jun62.5°F63.6°F-1.0°NCLIMGRID
1995Jul68.8°F70.7°F-1.8°NCLIMGRID
1995Aug70.9°F68.9°F+2.0°NCLIMGRID
1995Sep57.8°F57.7°F+0.1°NCLIMGRID
1995Oct45.2°F45.6°F-0.4°NCLIMGRID
1995Nov33.4°F30.7°F+2.7°NCLIMGRID
1995Dec21.2°F20.1°F+1.1°NCLIMGRID
1996Jan9.5°F16.4°F-6.9°NCLIMGRID
1996Feb25.0°F23.9°F+1.1°NCLIMGRID
1996Mar23.8°F33.6°F-9.8°NCLIMGRID
1996Apr45.1°F44.4°F+0.7°NCLIMGRID
1996May49.1°F54.0°F-4.9°NCLIMGRID
1996Jun65.7°F63.6°F+2.1°NCLIMGRID
1996Jul70.1°F70.7°F-0.6°NCLIMGRID
1996Aug71.3°F68.9°F+2.3°NCLIMGRID
1996Sep57.2°F57.7°F-0.5°NCLIMGRID
1996Oct44.4°F45.6°F-1.2°NCLIMGRID
1996Nov21.1°F30.7°F-9.7°NCLIMGRID
1996Dec14.1°F20.1°F-6.0°NCLIMGRID
1997Jan11.3°F16.4°F-5.1°NCLIMGRID
1997Feb29.9°F23.9°F+6.1°NCLIMGRID
1997Mar37.0°F33.6°F+3.4°NCLIMGRID
1997Apr39.1°F44.4°F-5.2°NCLIMGRID
1997May54.7°F54.0°F+0.7°NCLIMGRID
1997Jun66.8°F63.6°F+3.3°NCLIMGRID
1997Jul69.6°F70.7°F-1.1°NCLIMGRID
1997Aug70.0°F68.9°F+1.0°NCLIMGRID
1997Sep63.6°F57.7°F+5.9°NCLIMGRID
1997Oct47.6°F45.6°F+2.0°NCLIMGRID
1997Nov33.1°F30.7°F+2.4°NCLIMGRID
1997Dec28.9°F20.1°F+8.8°NCLIMGRID
1998Jan20.0°F16.4°F+3.6°NCLIMGRID
1998Feb34.7°F23.9°F+10.8°NCLIMGRID
1998Mar30.2°F33.6°F-3.4°NCLIMGRID
1998Apr47.4°F44.4°F+3.1°NCLIMGRID
1998May56.8°F54.0°F+2.7°NCLIMGRID
1998Jun58.6°F63.6°F-5.0°NCLIMGRID
1998Jul74.5°F70.7°F+3.8°NCLIMGRID
1998Aug73.0°F68.9°F+4.1°NCLIMGRID
1998Sep66.1°F57.7°F+8.4°NCLIMGRID
1998Oct47.6°F45.6°F+2.0°NCLIMGRID
1998Nov36.1°F30.7°F+5.4°NCLIMGRID
1998Dec23.7°F20.1°F+3.6°NCLIMGRID
1999Jan22.6°F16.4°F+6.2°NCLIMGRID
1999Feb35.4°F23.9°F+11.5°NCLIMGRID
1999Mar39.9°F33.6°F+6.2°NCLIMGRID
1999Apr44.1°F44.4°F-0.3°NCLIMGRID
1999May52.6°F54.0°F-1.5°NCLIMGRID
1999Jun62.5°F63.6°F-1.1°NCLIMGRID
1999Jul70.2°F70.7°F-0.5°NCLIMGRID
1999Aug71.2°F68.9°F+2.3°NCLIMGRID
1999Sep54.6°F57.7°F-3.1°NCLIMGRID
1999Oct47.7°F45.6°F+2.1°NCLIMGRID
1999Nov40.2°F30.7°F+9.4°NCLIMGRID
1999Dec32.7°F20.1°F+12.6°NCLIMGRID
2000Jan24.7°F16.4°F+8.3°NCLIMGRID
2000Feb28.0°F23.9°F+4.1°NCLIMGRID
2000Mar39.2°F33.6°F+5.6°NCLIMGRID
2000Apr46.8°F44.4°F+2.4°NCLIMGRID
2000May56.0°F54.0°F+1.9°NCLIMGRID
2000Jun62.7°F63.6°F-0.9°NCLIMGRID
2000Jul74.4°F70.7°F+3.7°NCLIMGRID
2000Aug72.6°F68.9°F+3.6°NCLIMGRID
2000Sep58.4°F57.7°F+0.7°NCLIMGRID
2000Oct46.2°F45.6°F+0.6°NCLIMGRID
2000Nov19.6°F30.7°F-11.2°NCLIMGRID
2000Dec11.6°F20.1°F-8.5°NCLIMGRID
2001Jan24.0°F16.4°F+7.6°NCLIMGRID
2001Feb16.2°F23.9°F-7.7°NCLIMGRID
2001Mar36.4°F33.6°F+2.8°NCLIMGRID
2001Apr45.6°F44.4°F+1.3°NCLIMGRID
2001May57.7°F54.0°F+3.6°NCLIMGRID
2001Jun64.0°F63.6°F+0.4°NCLIMGRID
2001Jul73.8°F70.7°F+3.1°NCLIMGRID
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2001Oct46.0°F45.6°F+0.4°NCLIMGRID
2001Nov37.4°F30.7°F+6.6°NCLIMGRID
2001Dec24.9°F20.1°F+4.8°NCLIMGRID
2002Jan26.1°F16.4°F+9.7°NCLIMGRID
2002Feb29.6°F23.9°F+5.8°NCLIMGRID
2002Mar19.8°F33.6°F-13.8°NCLIMGRID
2002Apr41.1°F44.4°F-3.3°NCLIMGRID
2002May51.7°F54.0°F-2.3°NCLIMGRID
2002Jun65.7°F63.6°F+2.1°NCLIMGRID
2002Jul76.0°F70.7°F+5.4°NCLIMGRID
2002Aug66.5°F68.9°F-2.5°NCLIMGRID
2002Sep60.2°F57.7°F+2.5°NCLIMGRID
2002Oct39.4°F45.6°F-6.1°NCLIMGRID
2002Nov36.8°F30.7°F+6.0°NCLIMGRID
2002Dec27.2°F20.1°F+7.1°NCLIMGRID
2003Jan24.1°F16.4°F+7.7°NCLIMGRID
2003Feb22.9°F23.9°F-0.9°NCLIMGRID
2003Mar30.5°F33.6°F-3.1°NCLIMGRID
2003Apr49.3°F44.4°F+4.9°NCLIMGRID
2003May54.2°F54.0°F+0.1°NCLIMGRID
2003Jun62.3°F63.6°F-1.3°NCLIMGRID
2003Jul75.6°F70.7°F+4.9°NCLIMGRID
2003Aug75.6°F68.9°F+6.7°NCLIMGRID
2003Sep56.8°F57.7°F-1.0°NCLIMGRID
2003Oct50.3°F45.6°F+4.8°NCLIMGRID
2003Nov26.9°F30.7°F-3.8°NCLIMGRID
2003Dec26.7°F20.1°F+6.6°NCLIMGRID
2004Jan15.7°F16.4°F-0.7°NCLIMGRID
2004Feb22.1°F23.9°F-1.7°NCLIMGRID
2004Mar41.7°F33.6°F+8.1°NCLIMGRID
2004Apr46.9°F44.4°F+2.6°NCLIMGRID
2004May51.9°F54.0°F-2.1°NCLIMGRID
2004Jun60.0°F63.6°F-3.6°NCLIMGRID
2004Jul70.9°F70.7°F+0.2°NCLIMGRID
2004Aug66.5°F68.9°F-2.5°NCLIMGRID
2004Sep58.9°F57.7°F+1.2°NCLIMGRID
2004Oct47.0°F45.6°F+1.5°NCLIMGRID
2004Nov36.6°F30.7°F+5.8°NCLIMGRID
2004Dec29.8°F20.1°F+9.7°NCLIMGRID
2005Jan16.0°F16.4°F-0.4°NCLIMGRID
2005Feb30.9°F23.9°F+7.0°NCLIMGRID
2005Mar37.9°F33.6°F+4.2°NCLIMGRID
2005Apr45.8°F44.4°F+1.4°NCLIMGRID
2005May52.0°F54.0°F-2.0°NCLIMGRID
2005Jun63.2°F63.6°F-0.3°NCLIMGRID
2005Jul73.0°F70.7°F+2.4°NCLIMGRID
2005Aug67.9°F68.9°F-1.1°NCLIMGRID
2005Sep60.2°F57.7°F+2.5°NCLIMGRID
2005Oct47.0°F45.6°F+1.4°NCLIMGRID
2005Nov36.3°F30.7°F+5.5°NCLIMGRID
2005Dec20.1°F20.1°F+0.0°NCLIMGRID
2006Jan35.0°F16.4°F+18.6°NCLIMGRID
2006Feb26.5°F23.9°F+2.6°NCLIMGRID
2006Mar33.8°F33.6°F+0.2°NCLIMGRID
2006Apr48.5°F44.4°F+4.1°NCLIMGRID
2006May56.1°F54.0°F+2.0°NCLIMGRID
2006Jun66.9°F63.6°F+3.3°NCLIMGRID
2006Jul75.9°F70.7°F+5.2°NCLIMGRID
2006Aug70.4°F68.9°F+1.4°NCLIMGRID
2006Sep57.2°F57.7°F-0.5°NCLIMGRID
2006Oct42.5°F45.6°F-3.1°NCLIMGRID
2006Nov33.4°F30.7°F+2.7°NCLIMGRID
2006Dec26.9°F20.1°F+6.8°NCLIMGRID
2007Jan24.6°F16.4°F+8.2°NCLIMGRID
2007Feb22.5°F23.9°F-1.3°NCLIMGRID
2007Mar42.6°F33.6°F+9.0°NCLIMGRID
2007Apr44.0°F44.4°F-0.4°NCLIMGRID
2007May56.4°F54.0°F+2.4°NCLIMGRID
2007Jun65.9°F63.6°F+2.4°NCLIMGRID
2007Jul77.6°F70.7°F+7.0°NCLIMGRID
2007Aug71.4°F68.9°F+2.4°NCLIMGRID
2007Sep59.7°F57.7°F+2.0°NCLIMGRID
2007Oct48.1°F45.6°F+2.5°NCLIMGRID
2007Nov34.5°F30.7°F+3.8°NCLIMGRID
2007Dec24.4°F20.1°F+4.3°NCLIMGRID
2008Jan17.4°F16.4°F+1.0°NCLIMGRID
2008Feb24.4°F23.9°F+0.5°NCLIMGRID
2008Mar34.8°F33.6°F+1.2°NCLIMGRID
2008Apr41.9°F44.4°F-2.5°NCLIMGRID
2008May53.0°F54.0°F-1.0°NCLIMGRID
2008Jun60.8°F63.6°F-2.8°NCLIMGRID
2008Jul71.8°F70.7°F+1.1°NCLIMGRID
2008Aug70.8°F68.9°F+1.8°NCLIMGRID
2008Sep56.8°F57.7°F-0.9°NCLIMGRID
2008Oct45.8°F45.6°F+0.2°NCLIMGRID
2008Nov37.9°F30.7°F+7.2°NCLIMGRID
2008Dec13.1°F20.1°F-7.0°NCLIMGRID
2009Jan21.7°F16.4°F+5.3°NCLIMGRID
2009Feb28.2°F23.9°F+4.3°NCLIMGRID
2009Mar30.8°F33.6°F-2.8°NCLIMGRID
2009Apr43.8°F44.4°F-0.5°NCLIMGRID
2009May54.3°F54.0°F+0.2°NCLIMGRID
2009Jun60.2°F63.6°F-3.3°NCLIMGRID
2009Jul69.0°F70.7°F-1.7°NCLIMGRID
2009Aug67.4°F68.9°F-1.5°NCLIMGRID
2009Sep63.4°F57.7°F+5.7°NCLIMGRID
2009Oct39.4°F45.6°F-6.2°NCLIMGRID
2009Nov37.1°F30.7°F+6.4°NCLIMGRID
2009Dec10.2°F20.1°F-9.9°NCLIMGRID
2010Jan16.8°F16.4°F+0.4°NCLIMGRID
2010Feb18.1°F23.9°F-5.8°NCLIMGRID
2010Mar40.1°F33.6°F+6.5°NCLIMGRID
2010Apr45.7°F44.4°F+1.3°NCLIMGRID
2010May51.2°F54.0°F-2.9°NCLIMGRID
2010Jun63.0°F63.6°F-0.6°NCLIMGRID
2010Jul70.0°F70.7°F-0.7°NCLIMGRID
2010Aug69.9°F68.9°F+1.0°NCLIMGRID
2010Sep57.4°F57.7°F-0.3°NCLIMGRID
2010Oct50.7°F45.6°F+5.1°NCLIMGRID
2010Nov27.1°F30.7°F-3.7°NCLIMGRID
2010Dec17.8°F20.1°F-2.3°NCLIMGRID
2011Jan18.4°F16.4°F+2.0°NCLIMGRID
2011Feb16.6°F23.9°F-7.2°NCLIMGRID
2011Mar31.1°F33.6°F-2.5°NCLIMGRID
2011Apr42.2°F44.4°F-2.2°NCLIMGRID
2011May49.7°F54.0°F-4.3°NCLIMGRID
2011Jun61.4°F63.6°F-2.2°NCLIMGRID
2011Jul73.4°F70.7°F+2.7°NCLIMGRID
2011Aug71.7°F68.9°F+2.8°NCLIMGRID
2011Sep60.5°F57.7°F+2.8°NCLIMGRID
2011Oct49.8°F45.6°F+4.3°NCLIMGRID
2011Nov31.2°F30.7°F+0.4°NCLIMGRID
2011Dec29.0°F20.1°F+9.0°NCLIMGRID
2012Jan25.1°F16.4°F+8.7°NCLIMGRID
2012Feb27.2°F23.9°F+3.4°NCLIMGRID
2012Mar45.1°F33.6°F+11.5°NCLIMGRID
2012Apr48.8°F44.4°F+4.5°NCLIMGRID
2012May53.6°F54.0°F-0.5°NCLIMGRID
2012Jun67.4°F63.6°F+3.9°NCLIMGRID
2012Jul77.8°F70.7°F+7.2°NCLIMGRID
2012Aug71.1°F68.9°F+2.2°NCLIMGRID
2012Sep60.8°F57.7°F+3.1°NCLIMGRID
2012Oct43.7°F45.6°F-1.9°NCLIMGRID
2012Nov35.0°F30.7°F+4.2°NCLIMGRID
2012Dec23.3°F20.1°F+3.2°NCLIMGRID
2013Jan21.6°F16.4°F+5.2°NCLIMGRID
2013Feb31.2°F23.9°F+7.4°NCLIMGRID
2013Mar33.5°F33.6°F-0.1°NCLIMGRID
2013Apr39.7°F44.4°F-4.7°NCLIMGRID
2013May56.0°F54.0°F+2.0°NCLIMGRID
2013Jun64.1°F63.6°F+0.5°NCLIMGRID
2013Jul72.3°F70.7°F+1.7°NCLIMGRID
2013Aug72.4°F68.9°F+3.5°NCLIMGRID
2013Sep64.0°F57.7°F+6.3°NCLIMGRID
2013Oct44.2°F45.6°F-1.4°NCLIMGRID
2013Nov31.2°F30.7°F+0.5°NCLIMGRID
2013Dec15.2°F20.1°F-4.9°NCLIMGRID
2014Jan25.4°F16.4°F+9.0°NCLIMGRID
2014Feb14.9°F23.9°F-9.0°NCLIMGRID
2014Mar31.2°F33.6°F-2.5°NCLIMGRID
2014Apr44.9°F44.4°F+0.5°NCLIMGRID
2014May54.7°F54.0°F+0.6°NCLIMGRID
2014Jun61.8°F63.6°F-1.7°NCLIMGRID
2014Jul72.1°F70.7°F+1.5°NCLIMGRID
2014Aug69.3°F68.9°F+0.3°NCLIMGRID
2014Sep57.8°F57.7°F+0.1°NCLIMGRID
2014Oct49.8°F45.6°F+4.2°NCLIMGRID
2014Nov26.3°F30.7°F-4.4°NCLIMGRID
2014Dec25.1°F20.1°F+5.0°NCLIMGRID
2015Jan22.0°F16.4°F+5.6°NCLIMGRID
2015Feb26.1°F23.9°F+2.3°NCLIMGRID
2015Mar42.3°F33.6°F+8.6°NCLIMGRID
2015Apr45.7°F44.4°F+1.3°NCLIMGRID
2015May52.4°F54.0°F-1.6°NCLIMGRID
2015Jun67.8°F63.6°F+4.3°NCLIMGRID
2015Jul70.8°F70.7°F+0.1°NCLIMGRID
2015Aug69.4°F68.9°F+0.5°NCLIMGRID
2015Sep61.4°F57.7°F+3.7°NCLIMGRID
2015Oct50.0°F45.6°F+4.4°NCLIMGRID
2015Nov32.5°F30.7°F+1.7°NCLIMGRID
2015Dec23.3°F20.1°F+3.2°NCLIMGRID
2016Jan22.0°F16.4°F+5.7°NCLIMGRID
2016Feb36.8°F23.9°F+12.9°NCLIMGRID
2016Mar40.5°F33.6°F+6.9°NCLIMGRID
2016Apr46.9°F44.4°F+2.5°NCLIMGRID
2016May54.7°F54.0°F+0.7°NCLIMGRID
2016Jun67.5°F63.6°F+3.9°NCLIMGRID
2016Jul71.5°F70.7°F+0.8°NCLIMGRID
2016Aug69.2°F68.9°F+0.3°NCLIMGRID
2016Sep58.7°F57.7°F+1.0°NCLIMGRID
2016Oct47.2°F45.6°F+1.7°NCLIMGRID
2016Nov40.3°F30.7°F+9.5°NCLIMGRID
2016Dec13.9°F20.1°F-6.1°NCLIMGRID
2017Jan12.5°F16.4°F-3.9°NCLIMGRID
2017Feb27.4°F23.9°F+3.5°NCLIMGRID
2017Mar37.9°F33.6°F+4.3°NCLIMGRID
2017Apr46.7°F44.4°F+2.3°NCLIMGRID
2017May55.7°F54.0°F+1.6°NCLIMGRID
2017Jun65.8°F63.6°F+2.3°NCLIMGRID
2017Jul77.1°F70.7°F+6.5°NCLIMGRID
2017Aug68.9°F68.9°F-0.1°NCLIMGRID
2017Sep58.2°F57.7°F+0.5°NCLIMGRID
2017Oct46.4°F45.6°F+0.9°NCLIMGRID
2017Nov32.9°F30.7°F+2.2°NCLIMGRID
2017Dec23.0°F20.1°F+2.9°NCLIMGRID
2018Jan15.8°F16.4°F-0.5°NCLIMGRID
2018Feb7.8°F23.9°F-16.0°NCLIMGRID
2018Mar26.4°F33.6°F-7.2°NCLIMGRID
2018Apr41.3°F44.4°F-3.1°NCLIMGRID
2018May59.4°F54.0°F+5.4°NCLIMGRID
2018Jun64.0°F63.6°F+0.4°NCLIMGRID
2018Jul71.3°F70.7°F+0.6°NCLIMGRID
2018Aug68.1°F68.9°F-0.9°NCLIMGRID
2018Sep56.8°F57.7°F-0.9°NCLIMGRID
2018Oct43.3°F45.6°F-2.3°NCLIMGRID
2018Nov32.2°F30.7°F+1.5°NCLIMGRID
2018Dec27.6°F20.1°F+7.5°NCLIMGRID
2019Jan25.7°F16.4°F+9.3°NCLIMGRID
2019Feb3.4°F23.9°F-20.5°NCLIMGRID
2019Mar25.1°F33.6°F-8.5°NCLIMGRID
2019Apr45.6°F44.4°F+1.3°NCLIMGRID
2019May48.8°F54.0°F-5.3°NCLIMGRID
2019Jun62.3°F63.6°F-1.2°NCLIMGRID
2019Jul70.0°F70.7°F-0.7°NCLIMGRID
2019Aug69.4°F68.9°F+0.5°NCLIMGRID
2019Sep58.9°F57.7°F+1.2°NCLIMGRID
2019Oct37.7°F45.6°F-7.9°NCLIMGRID
2019Nov31.3°F30.7°F+0.6°NCLIMGRID
2019Dec27.7°F20.1°F+7.6°NCLIMGRID
2020Jan22.9°F16.4°F+6.5°NCLIMGRID
2020Feb28.4°F23.9°F+4.5°NCLIMGRID
2020Mar34.6°F33.6°F+1.0°NCLIMGRID
2020Apr40.3°F44.4°F-4.1°NCLIMGRID
2020May54.0°F54.0°F+0.0°NCLIMGRID
2020Jun65.5°F63.6°F+1.9°NCLIMGRID
2020Jul71.2°F70.7°F+0.6°NCLIMGRID
2020Aug72.3°F68.9°F+3.3°NCLIMGRID
2020Sep60.0°F57.7°F+2.3°NCLIMGRID
2020Oct40.7°F45.6°F-4.9°NCLIMGRID
2020Nov35.1°F30.7°F+4.3°NCLIMGRID
2020Dec30.3°F20.1°F+10.2°NCLIMGRID
2021Jan28.8°F16.4°F+12.4°NCLIMGRID
2021Feb12.9°F23.9°F-11.0°NCLIMGRID
2021Mar37.7°F33.6°F+4.1°NCLIMGRID
2021Apr43.1°F44.4°F-1.3°NCLIMGRID
2021May52.5°F54.0°F-1.5°NCLIMGRID
2021Jun70.8°F63.6°F+7.2°NCLIMGRID
2021Jul77.7°F70.7°F+7.1°NCLIMGRID
2021Aug69.4°F68.9°F+0.5°NCLIMGRID
2021Sep61.7°F57.7°F+4.0°NCLIMGRID
2021Oct48.1°F45.6°F+2.5°NCLIMGRID
2021Nov38.7°F30.7°F+8.0°NCLIMGRID
2021Dec18.3°F20.1°F-1.8°NCLIMGRID
2022Jan21.8°F16.4°F+5.4°NCLIMGRID
2022Feb23.0°F23.9°F-0.9°NCLIMGRID
2022Mar34.8°F33.6°F+1.2°NCLIMGRID
2022Apr37.3°F44.4°F-7.1°NCLIMGRID
2022May52.4°F54.0°F-1.6°NCLIMGRID
2022Jun63.2°F63.6°F-0.3°NCLIMGRID
2022Jul73.9°F70.7°F+3.2°NCLIMGRID
2022Aug74.0°F68.9°F+5.0°NCLIMGRID
2022Sep64.9°F57.7°F+7.1°NCLIMGRID
2022Oct49.1°F45.6°F+3.6°NCLIMGRID
2022Nov24.1°F30.7°F-6.6°NCLIMGRID
2022Dec13.6°F20.1°F-6.5°NCLIMGRID
2023Jan26.5°F16.4°F+10.1°NCLIMGRID
2023Feb26.2°F23.9°F+2.3°NCLIMGRID
2023Mar26.5°F33.6°F-7.1°NCLIMGRID
2023Apr42.7°F44.4°F-1.7°NCLIMGRID
2023May59.3°F54.0°F+5.3°NCLIMGRID
2023Jun65.2°F63.6°F+1.7°NCLIMGRID
2023Jul71.9°F70.7°F+1.2°NCLIMGRID
2023Aug71.7°F68.9°F+2.7°NCLIMGRID
2023Sep63.5°F57.7°F+5.8°NCLIMGRID
2023Oct44.0°F45.6°F-1.6°NCLIMGRID
2023Nov36.8°F30.7°F+6.1°NCLIMGRID
2023Dec32.4°F20.1°F+12.3°NCLIMGRID
2024Jan15.6°F16.4°F-0.8°NCLIMGRID
2024Feb31.4°F23.9°F+7.6°NCLIMGRID
2024Mar33.4°F33.6°F-0.2°NCLIMGRID
2024Apr47.0°F44.4°F+2.7°NCLIMGRID
2024May52.3°F54.0°F-1.8°NCLIMGRID
2024Jun63.9°F63.6°F+0.3°NCLIMGRID
2024Jul73.5°F70.7°F+2.8°NCLIMGRID
2024Aug70.6°F68.9°F+1.7°NCLIMGRID
2024Sep65.0°F57.7°F+7.3°NCLIMGRID
2024Oct51.5°F45.6°F+5.9°NCLIMGRID
2024Nov32.7°F30.7°F+2.0°NCLIMGRID
2024Dec30.3°F20.1°F+10.2°NCLIMGRID
2025Jan20.1°F16.4°F+3.7°NCLIMGRID
2025Feb9.9°F23.9°F-14.0°NCLIMGRID
2025Mar41.4°F33.6°F+7.8°NCLIMGRID
2025Apr45.5°F44.4°F+1.1°NCLIMGRID
2025May57.4°F54.0°F+3.3°NCLIMGRID
2025Jun64.4°F63.6°F+0.8°NCLIMGRID
2025Jul71.9°F70.7°F+1.2°NCLIMGRID
2025Aug71.3°F68.9°F+2.4°NCLIMGRID
2025Sep63.7°F57.7°F+6.0°NCLIMGRID
2025Oct47.7°F45.6°F+2.1°NCLIMGRID
2025Nov37.9°F30.7°F+7.2°NCLIMGRID
2025Dec28.4°F20.1°F+8.3°NCLIMGRID
2026Jan28.7°F16.4°F+12.3°NCLIMGRID
2026Feb33.0°F23.9°F+9.1°NCLIMGRID

Showing 1,154 of 1,154 records. = gap-filled data

This table shows raw (unsmoothed) monthly anomalies. The spiral applies a 12-month moving average to highlight long-term trends.

Methodology

Methodology How we calculate anomalies

1. Data Acquisition

We use NOAA's nClimGrid dataset, which provides homogenized temperature data on a 5km grid, for the nearest grid point with historical coverage starting from 1930.

Temperature metric: Monthly average temperature (TAVG). When TAVG is unavailable, we use (TMAX + TMIN) / 2 as a proxy.

2. Gap Filling

Some months may have missing data. We fill gaps using data from nearby weather stations (within ~200km).

10

Initial gaps

0

Filled

10

Unfillable

3. Baseline Calculation

The baseline is a 25-year window dynamically centered on the data's midpoint, requiring at least 90% coverage. If coverage is insufficient, the window shifts forward in 5-year increments until the threshold is met.

Period: 1966 – 1991 (100% coverage)

MonthBaselineYears
January16.4°F26/26
February23.9°F26/26
March33.6°F26/26
April44.4°F26/26
May54.0°F26/26
June63.6°F26/26
July70.7°F26/26
August68.9°F26/26
September57.7°F26/26
October45.6°F26/26
November30.7°F26/26
December20.1°F26/26

4. Anomaly Calculation

For each month, we calculate how far it deviates from the baseline. These are raw monthly anomalies.

Anomaly = Actual Temperature − Baseline[month]

5. Smoothing

The spiral visualization applies a 12-month centered moving average to reduce month-to-month noise and highlight multi-year warming trends. The spiral shows smoothed values, not raw anomalies.

6. Reading the Visualizations

Spiral: A 3D helix where each loop represents one year. The radius indicates the smoothed temperature anomaly, and colors range from blue (cold) to red (warm). The top view shows the annual cycle, while the side view shows time progression.

Stripes: Each stripe represents one year's average anomaly (the mean of all monthly anomalies for that year). No additional smoothing is applied; yearly aggregation naturally reduces noise.

Color scale: Color bounds are set to the 5th and 95th percentile of anomalies to avoid outlier washout, with a neutral zone of approximately ±0.1°C.

7. Data Quality Notes

Frequently Asked Questions

Is Forsyth, Montana getting warmer?

Based on 96+ years of NOAA temperature records, Forsyth has warmed at a rate of approximately 0.19°F per decade. This trend is calculated from monthly temperature anomalies relative to the location's historical baseline period.

What was the warmest year on record in Forsyth?

The warmest year on record in Forsyth was 2012, based on average annual temperature anomaly from NOAA station data.

Where does the temperature data for Forsyth come from?

Data comes from the nClimGrid 5km Grid Point weather station, part of NOAA's Global Historical Climatology Network. This station has recorded 96+ years of temperature observations used to build Forsyth's climate profile.

How are the climate visualizations for Forsyth created?

Three visualizations are generated from Forsyth's NOAA data: a climate spiral showing monthly temperature anomalies as concentric rings (inspired by NASA), warming stripes where each vertical stripe represents one year's temperature anomaly, and a linear trend chart showing the long-term trajectory.

Can I download Forsyth's temperature data?

Yes. The interactive data table on this page shows every monthly temperature reading in Forsyth's record. You can filter by decade and download the complete dataset as a CSV file for your own analysis.

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