Climate Change in Alpena, Arkansas

96+ years of recorded temperature data show Alpena is changing.

Based on our analysis of 96 years of temperature data near Alpena, AR, this area shows relatively stable temperatures of approximately +0.1°F per decade. 10 of the last 10 years recorded above-average temperatures, and 2012 was the warmest year on record at +4.0°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.1°F

per decade

Warmest Year

2012

+4.0°F anomaly

Recent Warm Years

10 / 10

above-average years

Decade Shift

+0.8°F

2020s vs 1930s

Compared to the National Average

Alpena is warming 0.1°F/decade slower than the national average.

National: +0.20°F/decade
Alpena: +0.07°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 Alpena's long-term warming trend.

Temperature anomaly spiral for Alpena, Arkansas
Climate spiral: monthly temperature anomalies from 96+ years of NOAA records for Alpena, AR.

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 Alpena, Arkansas
Warming stripes: each stripe is one year of average temperature anomaly for Alpena, AR.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.07°F per decade quantifies the rate of change.

Temperature trend chart for Alpena, Arkansas
Linear trend: annual temperature anomalies with trend line for Alpena, AR.

Temperature by Decade

1930s
+1.30°F
1940s
+0.48°F
1950s
+0.60°F
1960s
-0.06°F
1970s
-0.15°F
1980s
+0.10°F
1990s
+0.50°F
2000s
+0.86°F
2010s
+1.25°F
2020s
+2.18°F

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

Anomaly Scale

-4.7°F Colder Normal +6.3°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 Alpena, AR. Filter by decade or download as CSV.

Data Sources & Audit

Station
nClimGrid 5km Grid Point
Distance
1.2 mi
Coverage
99.1%
Records
1,154
Range
1930-01 – 2026-02
Full Data Audit 1,154 records
YearMonthTempBaselineAnomalySourceGap
1930Jan24.7°F33.2°F-8.5°NCLIMGRID
1930Feb47.2°F37.6°F+9.5°NCLIMGRID
1930Mar44.6°F47.7°F-3.1°NCLIMGRID
1930Apr60.4°F57.2°F+3.2°NCLIMGRID
1930May63.7°F64.8°F-1.1°NCLIMGRID
1930Jun71.4°F72.7°F-1.3°NCLIMGRID
1930Jul80.3°F77.5°F+2.8°NCLIMGRID
1930Aug78.4°F76.0°F+2.4°NCLIMGRID
1930Sep71.4°F68.7°F+2.7°NCLIMGRID
1930Oct54.8°F57.8°F-3.0°NCLIMGRID
1930Nov46.1°F46.5°F-0.4°NCLIMGRID
1930Dec36.0°F37.1°F-1.1°NCLIMGRID
1931Jan37.6°F33.2°F+4.5°NCLIMGRID
1931Feb43.4°F37.6°F+5.8°NCLIMGRID
1931Mar42.1°F47.7°F-5.6°NCLIMGRID
1931Apr53.9°F57.2°F-3.3°NCLIMGRID
1931May60.8°F64.8°F-4.0°NCLIMGRID
1931Jun75.5°F72.7°F+2.7°NCLIMGRID
1931Jul78.4°F77.5°F+0.9°NCLIMGRID
1931Aug72.7°F76.0°F-3.3°NCLIMGRID
1931Sep74.4°F68.7°F+5.6°NCLIMGRID
1931Oct62.3°F57.8°F+4.5°NCLIMGRID
1931Nov52.9°F46.5°F+6.4°NCLIMGRID
1931Dec43.2°F37.1°F+6.1°NCLIMGRID
1932Jan40.5°F33.2°F+7.3°NCLIMGRID
1932Feb47.3°F37.6°F+9.6°NCLIMGRID
1932Mar42.7°F47.7°F-5.0°NCLIMGRID
1932Apr59.5°F57.2°F+2.3°NCLIMGRID
1932May65.1°F64.8°F+0.2°NCLIMGRID
1932Jun74.1°F72.7°F+1.4°NCLIMGRID
1932Jul79.3°F77.5°F+1.8°NCLIMGRID
1932Aug78.3°F76.0°F+2.3°NCLIMGRID
1932Sep69.9°F68.7°F+1.1°NCLIMGRID
1932Oct56.5°F57.8°F-1.3°NCLIMGRID
1932Nov41.1°F46.5°F-5.4°NCLIMGRID
1932Dec34.0°F37.1°F-3.1°NCLIMGRID
1933Jan43.2°F33.2°F+10.1°NCLIMGRID
1933Feb36.2°F37.6°F-1.5°NCLIMGRID
1933Mar46.2°F47.7°F-1.5°NCLIMGRID
1933Apr56.3°F57.2°F-0.9°NCLIMGRID
1933May67.7°F64.8°F+2.8°NCLIMGRID
1933Jun76.7°F72.7°F+4.0°NCLIMGRID
1933Jul79.2°F77.5°F+1.6°NCLIMGRID
1933Aug75.9°F76.0°F-0.1°NCLIMGRID
1933Sep74.2°F68.7°F+5.5°NCLIMGRID
1933Oct57.9°F57.8°F+0.1°NCLIMGRID
1933Nov47.8°F46.5°F+1.4°NCLIMGRID
1933Dec43.8°F37.1°F+6.7°NCLIMGRID
1934Jan38.5°F33.2°F+5.3°NCLIMGRID
1934Feb36.0°F37.6°F-1.6°NCLIMGRID
1934Mar44.2°F47.7°F-3.5°NCLIMGRID
1934Apr57.4°F57.2°F+0.2°NCLIMGRID
1934May66.5°F64.8°F+1.7°NCLIMGRID
1934Jun78.7°F72.7°F+6.0°NCLIMGRID
1934Jul84.7°F77.5°F+7.2°NCLIMGRID
1934Aug82.1°F76.0°F+6.2°NCLIMGRID
1934Sep66.3°F68.7°F-2.5°NCLIMGRID
1934Oct61.4°F57.8°F+3.6°NCLIMGRID
1934Nov49.8°F46.5°F+3.3°NCLIMGRID
1934Dec36.2°F37.1°F-0.9°NCLIMGRID
1935Jan38.3°F33.2°F+5.1°NCLIMGRID
1935Feb40.3°F37.6°F+2.7°NCLIMGRID
1935Mar53.4°F47.7°F+5.7°NCLIMGRID
1935Apr54.6°F57.2°F-2.6°NCLIMGRID
1935May61.7°F64.8°F-3.2°NCLIMGRID
1935Jun69.6°F72.7°F-3.2°NCLIMGRID
1935Jul79.4°F77.5°F+1.9°NCLIMGRID
1935Aug79.4°F76.0°F+3.4°NCLIMGRID
1935Sep68.0°F68.7°F-0.7°NCLIMGRID
1935Oct58.1°F57.8°F+0.3°NCLIMGRID
1935Nov43.4°F46.5°F-3.0°NCLIMGRID
1935Dec32.5°F37.1°F-4.6°NCLIMGRID
1936Jan30.7°F33.2°F-2.5°NCLIMGRID
1936Feb30.1°F37.6°F-7.6°NCLIMGRID
1936Mar51.5°F47.7°F+3.7°NCLIMGRID
1936Apr55.1°F57.2°F-2.1°NCLIMGRID
1936May67.2°F64.8°F+2.4°NCLIMGRID
1936Jun77.4°F72.7°F+4.7°NCLIMGRID
1936Jul83.3°F77.5°F+5.7°NCLIMGRID
1936Aug84.7°F76.0°F+8.7°NCLIMGRID
1936Sep74.0°F68.7°F+5.3°NCLIMGRID
1936Oct56.6°F57.8°F-1.2°NCLIMGRID
1936Nov43.2°F46.5°F-3.3°NCLIMGRID
1936Dec41.0°F37.1°F+3.8°NCLIMGRID
1937Jan33.0°F33.2°F-0.2°NCLIMGRID
1937Feb37.7°F37.6°F+0.1°NCLIMGRID
1937Mar42.4°F47.7°F-5.3°NCLIMGRID
1937Apr55.8°F57.2°F-1.4°NCLIMGRID
1937May66.1°F64.8°F+1.2°NCLIMGRID
1937Jun75.1°F72.7°F+2.4°NCLIMGRID
1937Jul77.5°F77.5°F-0.1°NCLIMGRID
1937Aug80.2°F76.0°F+4.2°NCLIMGRID
1937Sep68.9°F68.7°F+0.2°NCLIMGRID
1937Oct56.5°F57.8°F-1.3°NCLIMGRID
1937Nov41.3°F46.5°F-5.2°NCLIMGRID
1937Dec35.2°F37.1°F-1.9°NCLIMGRID
1938Jan35.3°F33.2°F+2.2°NCLIMGRID
1938Feb45.4°F37.6°F+7.8°NCLIMGRID
1938Mar55.3°F47.7°F+7.6°NCLIMGRID
1938Apr57.3°F57.2°F+0.1°NCLIMGRID
1938May65.6°F64.8°F+0.7°NCLIMGRID
1938Jun72.4°F72.7°F-0.3°NCLIMGRID
1938Jul79.1°F77.5°F+1.6°NCLIMGRID
1938Aug81.4°F76.0°F+5.4°NCLIMGRID
1938Sep71.7°F68.7°F+3.0°NCLIMGRID
1938Oct63.1°F57.8°F+5.2°NCLIMGRID
1938Nov44.9°F46.5°F-1.6°NCLIMGRID
1938Dec38.7°F37.1°F+1.6°NCLIMGRID
1939Jan40.8°F33.2°F+7.6°NCLIMGRID
1939Feb36.6°F37.6°F-1.1°NCLIMGRID
1939Mar50.4°F47.7°F+2.6°NCLIMGRID
1939Apr54.2°F57.2°F-3.0°NCLIMGRID
1939May65.2°F64.8°F+0.4°NCLIMGRID
1939Jun74.1°F72.7°F+1.4°NCLIMGRID
1939Jul79.6°F77.5°F+2.1°NCLIMGRID
1939Aug76.9°F76.0°F+0.9°NCLIMGRID
1939Sep77.2°F68.7°F+8.5°NCLIMGRID
1939Oct61.8°F57.8°F+4.0°NCLIMGRID
1939Nov42.8°F46.5°F-3.7°NCLIMGRID
1939Dec41.5°F37.1°F+4.4°NCLIMGRID
1940Jan20.5°F33.2°F-12.7°NCLIMGRID
1940Feb36.4°F37.6°F-1.3°NCLIMGRID
1940Mar46.2°F47.7°F-1.6°NCLIMGRID
1940Apr55.4°F57.2°F-1.8°NCLIMGRID
1940May63.2°F64.8°F-1.7°NCLIMGRID
1940Jun72.9°F72.7°F+0.2°NCLIMGRID
1940Jul76.0°F77.5°F-1.5°NCLIMGRID
1940Aug74.3°F76.0°F-1.7°NCLIMGRID
1940Sep67.7°F68.7°F-1.1°NCLIMGRID
1940Oct61.4°F57.8°F+3.6°NCLIMGRID
1940Nov43.6°F46.5°F-2.9°NCLIMGRID
1940Dec41.1°F37.1°F+4.0°NCLIMGRID
1941Jan37.8°F33.2°F+4.7°NCLIMGRID
1941Feb35.7°F37.6°F-1.9°NCLIMGRID
1941Mar42.3°F47.7°F-5.4°NCLIMGRID
1941Apr59.5°F57.2°F+2.3°NCLIMGRID
1941May67.8°F64.8°F+3.0°NCLIMGRID
1941Jun72.6°F72.7°F-0.2°NCLIMGRID
1941Jul79.9°F77.5°F+2.3°NCLIMGRID
1941Aug78.4°F76.0°F+2.4°NCLIMGRID
1941Sep71.5°F68.7°F+2.8°NCLIMGRID
1941Oct63.6°F57.8°F+5.8°NCLIMGRID
1941Nov44.7°F46.5°F-1.8°NCLIMGRID
1941Dec40.7°F37.1°F+3.6°NCLIMGRID
1942Jan32.8°F33.2°F-0.4°NCLIMGRID
1942Feb36.5°F37.6°F-1.2°NCLIMGRID
1942Mar47.9°F47.7°F+0.1°NCLIMGRID
1942Apr59.8°F57.2°F+2.6°NCLIMGRID
1942May63.6°F64.8°F-1.2°NCLIMGRID
1942Jun73.5°F72.7°F+0.8°NCLIMGRID
1942Jul78.3°F77.5°F+0.7°NCLIMGRID
1942Aug75.7°F76.0°F-0.3°NCLIMGRID
1942Sep68.1°F68.7°F-0.7°NCLIMGRID
1942Oct58.9°F57.8°F+1.1°NCLIMGRID
1942Nov49.8°F46.5°F+3.3°NCLIMGRID
1942Dec37.5°F37.1°F+0.4°NCLIMGRID
1943Jan36.3°F33.2°F+3.1°NCLIMGRID
1943Feb42.5°F37.6°F+4.9°NCLIMGRID
1943Mar42.2°F47.7°F-5.6°NCLIMGRID
1943Apr58.9°F57.2°F+1.7°NCLIMGRID
1943May66.5°F64.8°F+1.7°NCLIMGRID
1943Jun75.6°F72.7°F+2.9°NCLIMGRID
1943Jul80.1°F77.5°F+2.6°NCLIMGRID
1943Aug82.0°F76.0°F+6.0°NCLIMGRID
1943Sep68.4°F68.7°F-0.3°NCLIMGRID
1943Oct57.0°F57.8°F-0.8°NCLIMGRID
1943Nov44.9°F46.5°F-1.6°NCLIMGRID
1943Dec34.6°F37.1°F-2.5°NCLIMGRID
1944Jan37.0°F33.2°F+3.8°NCLIMGRID
1944Feb42.2°F37.6°F+4.6°NCLIMGRID
1944Mar45.2°F47.7°F-2.6°NCLIMGRID
1944Apr54.8°F57.2°F-2.4°NCLIMGRID
1944May66.5°F64.8°F+1.7°NCLIMGRID
1944Jun75.2°F72.7°F+2.5°NCLIMGRID
1944Jul77.3°F77.5°F-0.3°NCLIMGRID
1944Aug76.3°F76.0°F+0.3°NCLIMGRID
1944Sep69.7°F68.7°F+1.0°NCLIMGRID
1944Oct60.4°F57.8°F+2.5°NCLIMGRID
1944Nov47.8°F46.5°F+1.3°NCLIMGRID
1944Dec33.0°F37.1°F-4.2°NCLIMGRID
1945Jan34.2°F33.2°F+1.0°NCLIMGRID
1945Feb38.6°F37.6°F+0.9°NCLIMGRID
1945Mar53.9°F47.7°F+6.1°NCLIMGRID
1945Apr57.4°F57.2°F+0.2°NCLIMGRID
1945May61.6°F64.8°F-3.2°NCLIMGRID
1945Jun70.8°F72.7°F-2.0°NCLIMGRID
1945Jul74.4°F77.5°F-3.1°NCLIMGRID
1945Aug76.6°F76.0°F+0.6°NCLIMGRID
1945Sep70.6°F68.7°F+1.9°NCLIMGRID
1945Oct57.1°F57.8°F-0.7°NCLIMGRID
1945Nov48.0°F46.5°F+1.5°NCLIMGRID
1945Dec32.4°F37.1°F-4.7°NCLIMGRID
1946Jan35.8°F33.2°F+2.6°NCLIMGRID
1946Feb43.1°F37.6°F+5.4°NCLIMGRID
1946Mar54.5°F47.7°F+6.8°NCLIMGRID
1946Apr60.9°F57.2°F+3.7°NCLIMGRID
1946May61.8°F64.8°F-3.0°NCLIMGRID
1946Jun72.1°F72.7°F-0.7°NCLIMGRID
1946Jul79.1°F77.5°F+1.6°NCLIMGRID
1946Aug77.0°F76.0°F+1.0°NCLIMGRID
1946Sep69.0°F68.7°F+0.2°NCLIMGRID
1946Oct60.5°F57.8°F+2.7°NCLIMGRID
1946Nov47.6°F46.5°F+1.2°NCLIMGRID
1946Dec43.4°F37.1°F+6.3°NCLIMGRID
1947Jan37.2°F33.2°F+4.0°NCLIMGRID
1947Feb32.0°F37.6°F-5.6°NCLIMGRID
1947Mar39.7°F47.7°F-8.0°NCLIMGRID
1947Apr57.5°F57.2°F+0.3°NCLIMGRID
1947May63.2°F64.8°F-1.6°NCLIMGRID
1947Jun73.5°F72.7°F+0.8°NCLIMGRID
1947Jul74.9°F77.5°F-2.6°NCLIMGRID
1947Aug82.8°F76.0°F+6.8°NCLIMGRID
1947Sep72.5°F68.7°F+3.8°NCLIMGRID
1947Oct64.5°F57.8°F+6.7°NCLIMGRID
1947Nov43.0°F46.5°F-3.5°NCLIMGRID
1947Dec39.7°F37.1°F+2.6°NCLIMGRID
1948Jan28.5°F33.2°F-4.7°NCLIMGRID
1948Feb36.9°F37.6°F-0.7°NCLIMGRID
1948Mar43.8°F47.7°F-3.9°NCLIMGRID
1948Apr61.7°F57.2°F+4.5°NCLIMGRID
1948May64.3°F64.8°F-0.5°NCLIMGRID
1948Jun73.7°F72.7°F+1.0°NCLIMGRID
1948Jul76.5°F77.5°F-1.0°NCLIMGRID
1948Aug74.1°F76.0°F-1.9°NCLIMGRID
1948Sep68.4°F68.7°F-0.4°NCLIMGRID
1948Oct55.7°F57.8°F-2.1°NCLIMGRID
1948Nov46.7°F46.5°F+0.2°NCLIMGRID
1948Dec39.2°F37.1°F+2.1°NCLIMGRID
1949Jan35.5°F33.2°F+2.3°NCLIMGRID
1949Feb41.7°F37.6°F+4.0°NCLIMGRID
1949Mar46.5°F47.7°F-1.2°NCLIMGRID
1949Apr55.9°F57.2°F-1.3°NCLIMGRID
1949May68.0°F64.8°F+3.1°NCLIMGRID
1949Jun75.3°F72.7°F+2.5°NCLIMGRID
1949Jul78.3°F77.5°F+0.8°NCLIMGRID
1949Aug74.5°F76.0°F-1.5°NCLIMGRID
1949Sep64.8°F68.7°F-4.0°NCLIMGRID
1949Oct58.3°F57.8°F+0.5°NCLIMGRID
1949Nov48.6°F46.5°F+2.1°NCLIMGRID
1949Dec40.6°F37.1°F+3.4°NCLIMGRID
1950Jan40.2°F33.2°F+7.0°NCLIMGRID
1950Feb40.8°F37.6°F+3.1°NCLIMGRID
1950Mar43.4°F47.7°F-4.3°NCLIMGRID
1950Apr54.1°F57.2°F-3.1°NCLIMGRID
1950May65.0°F64.8°F+0.2°NCLIMGRID
1950Jun72.7°F72.7°F+0.0°NCLIMGRID
1950Jul72.3°F77.5°F-5.2°NCLIMGRID
1950Aug71.6°F76.0°F-4.4°NCLIMGRID
1950Sep66.2°F68.7°F-2.5°NCLIMGRID
1950Oct63.1°F57.8°F+5.2°NCLIMGRID
1950Nov42.1°F46.5°F-4.4°NCLIMGRID
1950Dec33.0°F37.1°F-4.2°NCLIMGRID
1951Jan35.2°F33.2°F+2.0°NCLIMGRID
1951Feb40.1°F37.6°F+2.5°NCLIMGRID
1951Mar44.3°F47.7°F-3.4°NCLIMGRID
1951Apr52.6°F57.2°F-4.6°NCLIMGRID
1951May63.1°F64.8°F-1.8°NCLIMGRID
1951Jun71.1°F72.7°F-1.6°NCLIMGRID
1951Jul76.9°F77.5°F-0.7°NCLIMGRID
1951Aug79.3°F76.0°F+3.3°NCLIMGRID
1951Sep67.9°F68.7°F-0.8°NCLIMGRID
1951Oct58.8°F57.8°F+1.0°NCLIMGRID
1951Nov39.4°F46.5°F-7.1°NCLIMGRID
1951Dec38.5°F37.1°F+1.4°NCLIMGRID
1952Jan41.3°F33.2°F+8.1°NCLIMGRID
1952Feb43.1°F37.6°F+5.5°NCLIMGRID
1952Mar45.2°F47.7°F-2.5°NCLIMGRID
1952Apr53.7°F57.2°F-3.5°NCLIMGRID
1952May64.6°F64.8°F-0.2°NCLIMGRID
1952Jun79.1°F72.7°F+6.4°NCLIMGRID
1952Jul79.1°F77.5°F+1.6°NCLIMGRID
1952Aug77.8°F76.0°F+1.8°NCLIMGRID
1952Sep67.2°F68.7°F-1.6°NCLIMGRID
1952Oct53.8°F57.8°F-4.0°NCLIMGRID
1952Nov45.3°F46.5°F-1.2°NCLIMGRID
1952Dec38.6°F37.1°F+1.4°NCLIMGRID
1953Jan40.1°F33.2°F+6.9°NCLIMGRID
1953Feb42.0°F37.6°F+4.4°NCLIMGRID
1953Mar51.9°F47.7°F+4.2°NCLIMGRID
1953Apr53.3°F57.2°F-3.9°NCLIMGRID
1953May66.5°F64.8°F+1.7°NCLIMGRID
1953Jun80.7°F72.7°F+8.0°NCLIMGRID
1953Jul77.8°F77.5°F+0.2°NCLIMGRID
1953Aug76.8°F76.0°F+0.8°NCLIMGRID
1953Sep71.7°F68.7°F+3.0°NCLIMGRID
1953Oct60.1°F57.8°F+2.3°NCLIMGRID
1953Nov45.9°F46.5°F-0.6°NCLIMGRID
1953Dec38.5°F37.1°F+1.4°NCLIMGRID
1954Jan36.1°F33.2°F+2.9°NCLIMGRID
1954Feb46.4°F37.6°F+8.7°NCLIMGRID
1954Mar45.9°F47.7°F-1.8°NCLIMGRID
1954Apr64.0°F57.2°F+6.7°NCLIMGRID
1954May61.4°F64.8°F-3.4°NCLIMGRID
1954Jun76.6°F72.7°F+3.8°NCLIMGRID
1954Jul84.2°F77.5°F+6.7°NCLIMGRID
1954Aug82.8°F76.0°F+6.8°NCLIMGRID
1954Sep74.3°F68.7°F+5.6°NCLIMGRID
1954Oct60.4°F57.8°F+2.6°NCLIMGRID
1954Nov46.4°F46.5°F-0.1°NCLIMGRID
1954Dec38.3°F37.1°F+1.2°NCLIMGRID
1955Jan36.6°F33.2°F+3.5°NCLIMGRID
1955Feb38.1°F37.6°F+0.4°NCLIMGRID
1955Mar47.7°F47.7°F+0.0°NCLIMGRID
1955Apr62.1°F57.2°F+4.9°NCLIMGRID
1955May67.1°F64.8°F+2.3°NCLIMGRID
1955Jun69.0°F72.7°F-3.7°NCLIMGRID
1955Jul78.9°F77.5°F+1.3°NCLIMGRID
1955Aug76.7°F76.0°F+0.7°NCLIMGRID
1955Sep71.4°F68.7°F+2.6°NCLIMGRID
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1984Mar43.8°F47.7°F-3.9°NCLIMGRID
1984Apr54.7°F57.2°F-2.5°NCLIMGRID
1984May62.5°F64.8°F-2.3°NCLIMGRID
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1984Nov44.9°F46.5°F-1.5°NCLIMGRID
1984Dec44.7°F37.1°F+7.5°NCLIMGRID
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1985Feb33.3°F37.6°F-4.3°NCLIMGRID
1985Mar50.9°F47.7°F+3.1°NCLIMGRID
1985Apr58.7°F57.2°F+1.5°NCLIMGRID
1985May65.7°F64.8°F+0.9°NCLIMGRID
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1985Jul78.3°F77.5°F+0.8°NCLIMGRID
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1985Nov48.1°F46.5°F+1.6°NCLIMGRID
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1986Jan38.1°F33.2°F+5.0°NCLIMGRID
1986Feb41.1°F37.6°F+3.5°NCLIMGRID
1986Mar50.3°F47.7°F+2.5°NCLIMGRID
1986Apr58.2°F57.2°F+1.0°NCLIMGRID
1986May66.0°F64.8°F+1.2°NCLIMGRID
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1986Jul81.4°F77.5°F+3.9°NCLIMGRID
1986Aug73.6°F76.0°F-2.4°NCLIMGRID
1986Sep71.6°F68.7°F+2.8°NCLIMGRID
1986Oct57.6°F57.8°F-0.2°NCLIMGRID
1986Nov43.3°F46.5°F-3.2°NCLIMGRID
1986Dec37.7°F37.1°F+0.6°NCLIMGRID
1987Jan34.6°F33.2°F+1.4°NCLIMGRID
1987Feb41.6°F37.6°F+4.0°NCLIMGRID
1987Mar48.3°F47.7°F+0.6°NCLIMGRID
1987Apr57.0°F57.2°F-0.2°NCLIMGRID
1987May69.8°F64.8°F+5.0°NCLIMGRID
1987Jun73.7°F72.7°F+1.0°NCLIMGRID
1987Jul77.3°F77.5°F-0.2°NCLIMGRID
1987Aug79.1°F76.0°F+3.1°NCLIMGRID
1987Sep67.9°F68.7°F-0.8°NCLIMGRID
1987Oct53.8°F57.8°F-4.0°NCLIMGRID
1987Nov48.5°F46.5°F+2.0°NCLIMGRID
1987Dec38.6°F37.1°F+1.5°NCLIMGRID
1988Jan31.8°F33.2°F-1.3°NCLIMGRID
1988Feb36.4°F37.6°F-1.2°NCLIMGRID
1988Mar46.9°F47.7°F-0.8°NCLIMGRID
1988Apr56.3°F57.2°F-0.9°NCLIMGRID
1988May65.1°F64.8°F+0.3°NCLIMGRID
1988Jun73.8°F72.7°F+1.1°NCLIMGRID
1988Jul76.5°F77.5°F-1.1°NCLIMGRID
1988Aug77.8°F76.0°F+1.8°NCLIMGRID
1988Sep69.2°F68.7°F+0.4°NCLIMGRID
1988Oct54.0°F57.8°F-3.8°NCLIMGRID
1988Nov47.8°F46.5°F+1.3°NCLIMGRID
1988Dec39.3°F37.1°F+2.2°NCLIMGRID
1989Jan41.5°F33.2°F+8.3°NCLIMGRID
1989Feb29.4°F37.6°F-8.2°NCLIMGRID
1989Mar47.2°F47.7°F-0.5°NCLIMGRID
1989Apr58.0°F57.2°F+0.8°NCLIMGRID
1989May63.8°F64.8°F-1.1°NCLIMGRID
1989Jun70.1°F72.7°F-2.7°NCLIMGRID
1989Jul74.5°F77.5°F-3.0°NCLIMGRID
1989Aug75.1°F76.0°F-0.9°NCLIMGRID
1989Sep64.9°F68.7°F-3.8°NCLIMGRID
1989Oct60.1°F57.8°F+2.3°NCLIMGRID
1989Nov49.1°F46.5°F+2.6°NCLIMGRID
1989Dec28.3°F37.1°F-8.8°NCLIMGRID
1990Jan42.9°F33.2°F+9.7°NCLIMGRID
1990Feb44.1°F37.6°F+6.4°NCLIMGRID
1990Mar49.5°F47.7°F+1.8°NCLIMGRID
1990Apr55.2°F57.2°F-2.0°NCLIMGRID
1990May62.0°F64.8°F-2.8°NCLIMGRID
1990Jun74.3°F72.7°F+1.6°NCLIMGRID
1990Jul76.7°F77.5°F-0.8°NCLIMGRID
1990Aug76.6°F76.0°F+0.6°NCLIMGRID
1990Sep72.3°F68.7°F+3.6°NCLIMGRID
1990Oct55.6°F57.8°F-2.2°NCLIMGRID
1990Nov52.2°F46.5°F+5.7°NCLIMGRID
1990Dec36.7°F37.1°F-0.5°NCLIMGRID
1991Jan32.1°F33.2°F-1.0°NCLIMGRID
1991Feb43.3°F37.6°F+5.7°NCLIMGRID
1991Mar50.6°F47.7°F+2.8°NCLIMGRID
1991Apr58.3°F57.2°F+1.1°NCLIMGRID
1991May69.7°F64.8°F+4.8°NCLIMGRID
1991Jun74.6°F72.7°F+1.9°NCLIMGRID
1991Jul77.0°F77.5°F-0.5°NCLIMGRID
1991Aug75.5°F76.0°F-0.5°NCLIMGRID
1991Sep67.2°F68.7°F-1.5°NCLIMGRID
1991Oct59.1°F57.8°F+1.3°NCLIMGRID
1991Nov43.0°F46.5°F-3.5°NCLIMGRID
1991Dec40.6°F37.1°F+3.4°NCLIMGRID
1992Jan38.4°F33.2°F+5.2°NCLIMGRID
1992Feb44.5°F37.6°F+6.8°NCLIMGRID
1992Mar49.1°F47.7°F+1.4°NCLIMGRID
1992Apr57.5°F57.2°F+0.3°NCLIMGRID
1992May62.6°F64.8°F-2.3°NCLIMGRID
1992Jun69.7°F72.7°F-3.0°NCLIMGRID
1992Jul76.2°F77.5°F-1.3°NCLIMGRID
1992Aug69.8°F76.0°F-6.2°NCLIMGRID
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1992Oct58.1°F57.8°F+0.3°NCLIMGRID
1992Nov44.6°F46.5°F-1.9°NCLIMGRID
1992Dec38.0°F37.1°F+0.9°NCLIMGRID
1993Jan34.8°F33.2°F+1.6°NCLIMGRID
1993Feb35.3°F37.6°F-2.4°NCLIMGRID
1993Mar43.7°F47.7°F-4.1°NCLIMGRID
1993Apr52.1°F57.2°F-5.1°NCLIMGRID
1993May62.9°F64.8°F-1.9°NCLIMGRID
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1993Aug78.1°F76.0°F+2.1°NCLIMGRID
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1993Oct54.0°F57.8°F-3.8°NCLIMGRID
1993Nov42.0°F46.5°F-4.5°NCLIMGRID
1993Dec39.0°F37.1°F+1.9°NCLIMGRID
1994Jan31.4°F33.2°F-1.8°NCLIMGRID
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1994Mar48.6°F47.7°F+0.9°NCLIMGRID
1994Apr58.7°F57.2°F+1.5°NCLIMGRID
1994May62.7°F64.8°F-2.1°NCLIMGRID
1994Jun76.0°F72.7°F+3.3°NCLIMGRID
1994Jul75.4°F77.5°F-2.2°NCLIMGRID
1994Aug73.5°F76.0°F-2.5°NCLIMGRID
1994Sep66.8°F68.7°F-2.0°NCLIMGRID
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1994Nov50.1°F46.5°F+3.6°NCLIMGRID
1994Dec40.7°F37.1°F+3.6°NCLIMGRID
1995Jan36.1°F33.2°F+2.9°NCLIMGRID
1995Feb40.7°F37.6°F+3.1°NCLIMGRID
1995Mar48.7°F47.7°F+1.0°NCLIMGRID
1995Apr56.0°F57.2°F-1.2°NCLIMGRID
1995May63.2°F64.8°F-1.6°NCLIMGRID
1995Jun70.4°F72.7°F-2.3°NCLIMGRID
1995Jul77.2°F77.5°F-0.3°NCLIMGRID
1995Aug81.2°F76.0°F+5.2°NCLIMGRID
1995Sep65.6°F68.7°F-3.1°NCLIMGRID
1995Oct58.2°F57.8°F+0.4°NCLIMGRID
1995Nov44.6°F46.5°F-1.9°NCLIMGRID
1995Dec35.9°F37.1°F-1.2°NCLIMGRID
1996Jan32.5°F33.2°F-0.7°NCLIMGRID
1996Feb40.3°F37.6°F+2.6°NCLIMGRID
1996Mar40.4°F47.7°F-7.3°NCLIMGRID
1996Apr54.2°F57.2°F-3.0°NCLIMGRID
1996May68.0°F64.8°F+3.2°NCLIMGRID
1996Jun72.8°F72.7°F+0.0°NCLIMGRID
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1996Aug75.5°F76.0°F-0.5°NCLIMGRID
1996Sep66.2°F68.7°F-2.5°NCLIMGRID
1996Oct57.8°F57.8°F+0.0°NCLIMGRID
1996Nov40.8°F46.5°F-5.7°NCLIMGRID
1996Dec40.1°F37.1°F+3.0°NCLIMGRID
1997Jan32.9°F33.2°F-0.3°NCLIMGRID
1997Feb41.1°F37.6°F+3.4°NCLIMGRID
1997Mar50.5°F47.7°F+2.7°NCLIMGRID
1997Apr51.7°F57.2°F-5.5°NCLIMGRID
1997May62.5°F64.8°F-2.3°NCLIMGRID
1997Jun71.1°F72.7°F-1.6°NCLIMGRID
1997Jul78.1°F77.5°F+0.6°NCLIMGRID
1997Aug74.0°F76.0°F-2.0°NCLIMGRID
1997Sep68.9°F68.7°F+0.2°NCLIMGRID
1997Oct57.5°F57.8°F-0.4°NCLIMGRID
1997Nov43.3°F46.5°F-3.2°NCLIMGRID
1997Dec35.9°F37.1°F-1.3°NCLIMGRID
1998Jan40.2°F33.2°F+7.0°NCLIMGRID
1998Feb42.1°F37.6°F+4.4°NCLIMGRID
1998Mar43.9°F47.7°F-3.8°NCLIMGRID
1998Apr55.9°F57.2°F-1.3°NCLIMGRID
1998May70.4°F64.8°F+5.6°NCLIMGRID
1998Jun76.3°F72.7°F+3.6°NCLIMGRID
1998Jul81.1°F77.5°F+3.6°NCLIMGRID
1998Aug78.0°F76.0°F+2.1°NCLIMGRID
1998Sep75.3°F68.7°F+6.5°NCLIMGRID
1998Oct59.6°F57.8°F+1.8°NCLIMGRID
1998Nov50.8°F46.5°F+4.3°NCLIMGRID
1998Dec38.9°F37.1°F+1.8°NCLIMGRID
1999Jan37.2°F33.2°F+4.1°NCLIMGRID
1999Feb45.7°F37.6°F+8.1°NCLIMGRID
1999Mar44.9°F47.7°F-2.8°NCLIMGRID
1999Apr58.6°F57.2°F+1.4°NCLIMGRID
1999May63.9°F64.8°F-0.9°NCLIMGRID
1999Jun71.9°F72.7°F-0.9°NCLIMGRID
1999Jul78.9°F77.5°F+1.4°NCLIMGRID
1999Aug78.2°F76.0°F+2.3°NCLIMGRID
1999Sep68.0°F68.7°F-0.7°NCLIMGRID
1999Oct59.9°F57.8°F+2.1°NCLIMGRID
1999Nov54.6°F46.5°F+8.1°NCLIMGRID
1999Dec40.9°F37.1°F+3.8°NCLIMGRID
2000Jan37.5°F33.2°F+4.3°NCLIMGRID
2000Feb45.6°F37.6°F+8.0°NCLIMGRID
2000Mar50.3°F47.7°F+2.6°NCLIMGRID
2000Apr55.5°F57.2°F-1.7°NCLIMGRID
2000May67.2°F64.8°F+2.4°NCLIMGRID
2000Jun70.5°F72.7°F-2.2°NCLIMGRID
2000Jul76.4°F77.5°F-1.1°NCLIMGRID
2000Aug81.3°F76.0°F+5.3°NCLIMGRID
2000Sep71.2°F68.7°F+2.4°NCLIMGRID
2000Oct61.3°F57.8°F+3.4°NCLIMGRID
2000Nov41.9°F46.5°F-4.6°NCLIMGRID
2000Dec25.8°F37.1°F-11.3°NCLIMGRID
2001Jan34.0°F33.2°F+0.8°NCLIMGRID
2001Feb40.0°F37.6°F+2.4°NCLIMGRID
2001Mar43.8°F47.7°F-3.9°NCLIMGRID
2001Apr62.7°F57.2°F+5.5°NCLIMGRID
2001May66.0°F64.8°F+1.2°NCLIMGRID
2001Jun72.3°F72.7°F-0.4°NCLIMGRID
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2001Aug78.2°F76.0°F+2.2°NCLIMGRID
2001Sep67.0°F68.7°F-1.8°NCLIMGRID
2001Oct56.8°F57.8°F-1.0°NCLIMGRID
2001Nov52.0°F46.5°F+5.5°NCLIMGRID
2001Dec40.8°F37.1°F+3.7°NCLIMGRID
2002Jan38.7°F33.2°F+5.5°NCLIMGRID
2002Feb38.8°F37.6°F+1.1°NCLIMGRID
2002Mar43.8°F47.7°F-3.9°NCLIMGRID
2002Apr59.7°F57.2°F+2.5°NCLIMGRID
2002May62.8°F64.8°F-2.1°NCLIMGRID
2002Jun73.0°F72.7°F+0.2°NCLIMGRID
2002Jul76.9°F77.5°F-0.6°NCLIMGRID
2002Aug76.7°F76.0°F+0.7°NCLIMGRID
2002Sep71.3°F68.7°F+2.6°NCLIMGRID
2002Oct55.2°F57.8°F-2.6°NCLIMGRID
2002Nov45.5°F46.5°F-1.0°NCLIMGRID
2002Dec39.3°F37.1°F+2.2°NCLIMGRID
2003Jan33.2°F33.2°F+0.0°NCLIMGRID
2003Feb35.3°F37.6°F-2.3°NCLIMGRID
2003Mar47.5°F47.7°F-0.2°NCLIMGRID
2003Apr58.8°F57.2°F+1.6°NCLIMGRID
2003May64.8°F64.8°F+0.0°NCLIMGRID
2003Jun68.8°F72.7°F-3.9°NCLIMGRID
2003Jul77.9°F77.5°F+0.3°NCLIMGRID
2003Aug78.4°F76.0°F+2.4°NCLIMGRID
2003Sep66.0°F68.7°F-2.7°NCLIMGRID
2003Oct59.8°F57.8°F+2.0°NCLIMGRID
2003Nov50.2°F46.5°F+3.7°NCLIMGRID
2003Dec39.3°F37.1°F+2.2°NCLIMGRID
2004Jan36.3°F33.2°F+3.1°NCLIMGRID
2004Feb36.9°F37.6°F-0.7°NCLIMGRID
2004Mar51.3°F47.7°F+3.6°NCLIMGRID
2004Apr57.4°F57.2°F+0.2°NCLIMGRID
2004May67.7°F64.8°F+2.9°NCLIMGRID
2004Jun71.9°F72.7°F-0.8°NCLIMGRID
2004Jul74.1°F77.5°F-3.4°NCLIMGRID
2004Aug71.6°F76.0°F-4.4°NCLIMGRID
2004Sep69.5°F68.7°F+0.8°NCLIMGRID
2004Oct61.5°F57.8°F+3.7°NCLIMGRID
2004Nov50.1°F46.5°F+3.6°NCLIMGRID
2004Dec39.4°F37.1°F+2.3°NCLIMGRID
2005Jan40.1°F33.2°F+6.9°NCLIMGRID
2005Feb43.4°F37.6°F+5.7°NCLIMGRID
2005Mar45.8°F47.7°F-1.9°NCLIMGRID
2005Apr56.8°F57.2°F-0.4°NCLIMGRID
2005May64.0°F64.8°F-0.9°NCLIMGRID
2005Jun75.0°F72.7°F+2.3°NCLIMGRID
2005Jul77.9°F77.5°F+0.3°NCLIMGRID
2005Aug79.4°F76.0°F+3.4°NCLIMGRID
2005Sep74.1°F68.7°F+5.3°NCLIMGRID
2005Oct58.0°F57.8°F+0.2°NCLIMGRID
2005Nov50.1°F46.5°F+3.6°NCLIMGRID
2005Dec36.5°F37.1°F-0.7°NCLIMGRID
2006Jan45.4°F33.2°F+12.2°NCLIMGRID
2006Feb37.6°F37.6°F-0.1°NCLIMGRID
2006Mar49.5°F47.7°F+1.8°NCLIMGRID
2006Apr63.1°F57.2°F+5.9°NCLIMGRID
2006May66.9°F64.8°F+2.1°NCLIMGRID
2006Jun73.1°F72.7°F+0.4°NCLIMGRID
2006Jul79.4°F77.5°F+1.8°NCLIMGRID
2006Aug79.6°F76.0°F+3.6°NCLIMGRID
2006Sep65.8°F68.7°F-3.0°NCLIMGRID
2006Oct56.2°F57.8°F-1.6°NCLIMGRID
2006Nov48.2°F46.5°F+1.7°NCLIMGRID
2006Dec41.7°F37.1°F+4.6°NCLIMGRID
2007Jan34.4°F33.2°F+1.2°NCLIMGRID
2007Feb36.5°F37.6°F-1.2°NCLIMGRID
2007Mar56.6°F47.7°F+8.9°NCLIMGRID
2007Apr53.8°F57.2°F-3.4°NCLIMGRID
2007May67.4°F64.8°F+2.6°NCLIMGRID
2007Jun73.1°F72.7°F+0.4°NCLIMGRID
2007Jul75.0°F77.5°F-2.5°NCLIMGRID
2007Aug81.3°F76.0°F+5.3°NCLIMGRID
2007Sep70.6°F68.7°F+1.8°NCLIMGRID
2007Oct60.9°F57.8°F+3.1°NCLIMGRID
2007Nov48.9°F46.5°F+2.4°NCLIMGRID
2007Dec39.0°F37.1°F+1.9°NCLIMGRID
2008Jan35.0°F33.2°F+1.8°NCLIMGRID
2008Feb37.6°F37.6°F+0.0°NCLIMGRID
2008Mar47.9°F47.7°F+0.2°NCLIMGRID
2008Apr54.2°F57.2°F-3.0°NCLIMGRID
2008May64.1°F64.8°F-0.7°NCLIMGRID
2008Jun73.3°F72.7°F+0.5°NCLIMGRID
2008Jul76.5°F77.5°F-1.1°NCLIMGRID
2008Aug73.6°F76.0°F-2.4°NCLIMGRID
2008Sep67.2°F68.7°F-1.6°NCLIMGRID
2008Oct56.5°F57.8°F-1.3°NCLIMGRID
2008Nov45.9°F46.5°F-0.6°NCLIMGRID
2008Dec36.0°F37.1°F-1.1°NCLIMGRID
2009Jan33.8°F33.2°F+0.6°NCLIMGRID
2009Feb43.6°F37.6°F+5.9°NCLIMGRID
2009Mar49.6°F47.7°F+1.9°NCLIMGRID
2009Apr55.4°F57.2°F-1.8°NCLIMGRID
2009May63.4°F64.8°F-1.5°NCLIMGRID
2009Jun75.1°F72.7°F+2.4°NCLIMGRID
2009Jul74.0°F77.5°F-3.5°NCLIMGRID
2009Aug73.1°F76.0°F-2.9°NCLIMGRID
2009Sep66.7°F68.7°F-2.0°NCLIMGRID
2009Oct53.2°F57.8°F-4.6°NCLIMGRID
2009Nov52.1°F46.5°F+5.6°NCLIMGRID
2009Dec33.8°F37.1°F-3.3°NCLIMGRID
2010Jan32.1°F33.2°F-1.0°NCLIMGRID
2010Feb32.1°F37.6°F-5.5°NCLIMGRID
2010Mar47.2°F47.7°F-0.6°NCLIMGRID
2010Apr60.3°F57.2°F+3.1°NCLIMGRID
2010May66.4°F64.8°F+1.5°NCLIMGRID
2010Jun77.5°F72.7°F+4.8°NCLIMGRID
2010Jul78.9°F77.5°F+1.4°NCLIMGRID
2010Aug80.9°F76.0°F+4.9°NCLIMGRID
2010Sep70.4°F68.7°F+1.7°NCLIMGRID
2010Oct59.5°F57.8°F+1.6°NCLIMGRID
2010Nov49.5°F46.5°F+3.0°NCLIMGRID
2010Dec34.8°F37.1°F-2.3°NCLIMGRID
2011Jan33.5°F33.2°F+0.3°NCLIMGRID
2011Feb37.9°F37.6°F+0.2°NCLIMGRID
2011Mar47.9°F47.7°F+0.2°NCLIMGRID
2011Apr59.5°F57.2°F+2.3°NCLIMGRID
2011May63.0°F64.8°F-1.9°NCLIMGRID
2011Jun77.6°F72.7°F+4.9°NCLIMGRID
2011Jul83.4°F77.5°F+5.9°NCLIMGRID
2011Aug80.3°F76.0°F+4.4°NCLIMGRID
2011Sep65.5°F68.7°F-3.3°NCLIMGRID
2011Oct57.8°F57.8°F+0.0°NCLIMGRID
2011Nov49.3°F46.5°F+2.8°NCLIMGRID
2011Dec40.3°F37.1°F+3.2°NCLIMGRID
2012Jan40.7°F33.2°F+7.5°NCLIMGRID
2012Feb42.6°F37.6°F+5.0°NCLIMGRID
2012Mar59.1°F47.7°F+11.3°NCLIMGRID
2012Apr61.1°F57.2°F+3.9°NCLIMGRID
2012May69.7°F64.8°F+4.9°NCLIMGRID
2012Jun76.2°F72.7°F+3.4°NCLIMGRID
2012Jul83.0°F77.5°F+5.4°NCLIMGRID
2012Aug76.9°F76.0°F+0.9°NCLIMGRID
2012Sep69.9°F68.7°F+1.2°NCLIMGRID
2012Oct55.9°F57.8°F-1.9°NCLIMGRID
2012Nov47.9°F46.5°F+1.4°NCLIMGRID
2012Dec42.3°F37.1°F+5.2°NCLIMGRID
2013Jan37.9°F33.2°F+4.7°NCLIMGRID
2013Feb38.5°F37.6°F+0.8°NCLIMGRID
2013Mar42.7°F47.7°F-5.1°NCLIMGRID
2013Apr54.9°F57.2°F-2.3°NCLIMGRID
2013May63.6°F64.8°F-1.2°NCLIMGRID
2013Jun73.7°F72.7°F+1.0°NCLIMGRID
2013Jul75.2°F77.5°F-2.3°NCLIMGRID
2013Aug74.4°F76.0°F-1.6°NCLIMGRID
2013Sep71.2°F68.7°F+2.4°NCLIMGRID
2013Oct57.3°F57.8°F-0.5°NCLIMGRID
2013Nov44.3°F46.5°F-2.2°NCLIMGRID
2013Dec35.1°F37.1°F-2.0°NCLIMGRID
2014Jan31.2°F33.2°F-2.0°NCLIMGRID
2014Feb33.3°F37.6°F-4.4°NCLIMGRID
2014Mar43.1°F47.7°F-4.6°NCLIMGRID
2014Apr56.7°F57.2°F-0.5°NCLIMGRID
2014May66.0°F64.8°F+1.2°NCLIMGRID
2014Jun72.9°F72.7°F+0.2°NCLIMGRID
2014Jul72.6°F77.5°F-5.0°NCLIMGRID
2014Aug76.6°F76.0°F+0.6°NCLIMGRID
2014Sep68.2°F68.7°F-0.5°NCLIMGRID
2014Oct60.1°F57.8°F+2.3°NCLIMGRID
2014Nov41.5°F46.5°F-5.0°NCLIMGRID
2014Dec38.7°F37.1°F+1.6°NCLIMGRID
2015Jan36.0°F33.2°F+2.8°NCLIMGRID
2015Feb30.9°F37.6°F-6.7°NCLIMGRID
2015Mar47.1°F47.7°F-0.6°NCLIMGRID
2015Apr57.8°F57.2°F+0.6°NCLIMGRID
2015May65.2°F64.8°F+0.4°NCLIMGRID
2015Jun74.8°F72.7°F+2.1°NCLIMGRID
2015Jul78.6°F77.5°F+1.0°NCLIMGRID
2015Aug73.7°F76.0°F-2.3°NCLIMGRID
2015Sep70.6°F68.7°F+1.9°NCLIMGRID
2015Oct59.2°F57.8°F+1.4°NCLIMGRID
2015Nov50.1°F46.5°F+3.6°NCLIMGRID
2015Dec45.3°F37.1°F+8.2°NCLIMGRID
2016Jan35.8°F33.2°F+2.6°NCLIMGRID
2016Feb42.8°F37.6°F+5.2°NCLIMGRID
2016Mar51.7°F47.7°F+4.0°NCLIMGRID
2016Apr58.9°F57.2°F+1.7°NCLIMGRID
2016May63.1°F64.8°F-1.7°NCLIMGRID
2016Jun75.8°F72.7°F+3.1°NCLIMGRID
2016Jul78.8°F77.5°F+1.2°NCLIMGRID
2016Aug76.3°F76.0°F+0.3°NCLIMGRID
2016Sep71.2°F68.7°F+2.4°NCLIMGRID
2016Oct63.6°F57.8°F+5.7°NCLIMGRID
2016Nov52.2°F46.5°F+5.7°NCLIMGRID
2016Dec37.0°F37.1°F-0.1°NCLIMGRID
2017Jan39.9°F33.2°F+6.7°NCLIMGRID
2017Feb49.0°F37.6°F+11.3°NCLIMGRID
2017Mar51.9°F47.7°F+4.2°NCLIMGRID
2017Apr60.0°F57.2°F+2.8°NCLIMGRID
2017May64.7°F64.8°F-0.1°NCLIMGRID
2017Jun72.2°F72.7°F-0.5°NCLIMGRID
2017Jul77.9°F77.5°F+0.3°NCLIMGRID
2017Aug73.0°F76.0°F-3.0°NCLIMGRID
2017Sep70.3°F68.7°F+1.6°NCLIMGRID
2017Oct59.6°F57.8°F+1.8°NCLIMGRID
2017Nov50.8°F46.5°F+4.3°NCLIMGRID
2017Dec38.3°F37.1°F+1.2°NCLIMGRID
2018Jan32.7°F33.2°F-0.5°NCLIMGRID
2018Feb40.8°F37.6°F+3.2°NCLIMGRID
2018Mar48.8°F47.7°F+1.0°NCLIMGRID
2018Apr51.1°F57.2°F-6.1°NCLIMGRID
2018May72.3°F64.8°F+7.5°NCLIMGRID
2018Jun77.3°F72.7°F+4.5°NCLIMGRID
2018Jul78.7°F77.5°F+1.1°NCLIMGRID
2018Aug75.8°F76.0°F-0.2°NCLIMGRID
2018Sep71.6°F68.7°F+2.9°NCLIMGRID
2018Oct58.3°F57.8°F+0.5°NCLIMGRID
2018Nov41.4°F46.5°F-5.1°NCLIMGRID
2018Dec40.0°F37.1°F+2.9°NCLIMGRID
2019Jan36.1°F33.2°F+2.9°NCLIMGRID
2019Feb40.1°F37.6°F+2.4°NCLIMGRID
2019Mar43.9°F47.7°F-3.8°NCLIMGRID
2019Apr58.9°F57.2°F+1.7°NCLIMGRID
2019May66.2°F64.8°F+1.4°NCLIMGRID
2019Jun72.2°F72.7°F-0.6°NCLIMGRID
2019Jul76.0°F77.5°F-1.6°NCLIMGRID
2019Aug76.5°F76.0°F+0.5°NCLIMGRID
2019Sep75.9°F68.7°F+7.2°NCLIMGRID
2019Oct55.5°F57.8°F-2.3°NCLIMGRID
2019Nov43.8°F46.5°F-2.7°NCLIMGRID
2019Dec42.2°F37.1°F+5.1°NCLIMGRID
2020Jan39.4°F33.2°F+6.2°NCLIMGRID
2020Feb39.7°F37.6°F+2.1°NCLIMGRID
2020Mar52.8°F47.7°F+5.0°NCLIMGRID
2020Apr54.6°F57.2°F-2.6°NCLIMGRID
2020May62.4°F64.8°F-2.4°NCLIMGRID
2020Jun73.7°F72.7°F+1.0°NCLIMGRID
2020Jul78.2°F77.5°F+0.7°NCLIMGRID
2020Aug74.4°F76.0°F-1.6°NCLIMGRID
2020Sep68.6°F68.7°F-0.2°NCLIMGRID
2020Oct55.5°F57.8°F-2.4°NCLIMGRID
2020Nov50.7°F46.5°F+4.2°NCLIMGRID
2020Dec39.8°F37.1°F+2.6°NCLIMGRID
2021Jan37.4°F33.2°F+4.2°NCLIMGRID
2021Feb29.6°F37.6°F-8.0°NCLIMGRID
2021Mar51.5°F47.7°F+3.7°NCLIMGRID
2021Apr55.7°F57.2°F-1.5°NCLIMGRID
2021May62.7°F64.8°F-2.1°NCLIMGRID
2021Jun74.2°F72.7°F+1.5°NCLIMGRID
2021Jul76.8°F77.5°F-0.7°NCLIMGRID
2021Aug77.9°F76.0°F+1.9°NCLIMGRID
2021Sep72.2°F68.7°F+3.5°NCLIMGRID
2021Oct61.4°F57.8°F+3.5°NCLIMGRID
2021Nov47.9°F46.5°F+1.5°NCLIMGRID
2021Dec50.4°F37.1°F+13.3°NCLIMGRID
2022Jan34.0°F33.2°F+0.8°NCLIMGRID
2022Feb37.6°F37.6°F+0.0°NCLIMGRID
2022Mar48.9°F47.7°F+1.2°NCLIMGRID
2022Apr56.0°F57.2°F-1.2°NCLIMGRID
2022May66.3°F64.8°F+1.5°NCLIMGRID
2022Jun75.1°F72.7°F+2.4°NCLIMGRID
2022Jul82.3°F77.5°F+4.7°NCLIMGRID
2022Aug76.8°F76.0°F+0.8°NCLIMGRID
2022Sep70.0°F68.7°F+1.2°NCLIMGRID
2022Oct58.0°F57.8°F+0.2°NCLIMGRID
2022Nov46.3°F46.5°F-0.2°NCLIMGRID
2022Dec38.4°F37.1°F+1.3°NCLIMGRID
2023Jan41.0°F33.2°F+7.8°NCLIMGRID
2023Feb44.8°F37.6°F+7.2°NCLIMGRID
2023Mar47.4°F47.7°F-0.4°NCLIMGRID
2023Apr56.9°F57.2°F-0.3°NCLIMGRID
2023May66.4°F64.8°F+1.6°NCLIMGRID
2023Jun73.8°F72.7°F+1.0°NCLIMGRID
2023Jul78.2°F77.5°F+0.7°NCLIMGRID
2023Aug77.8°F76.0°F+1.8°NCLIMGRID
2023Sep70.5°F68.7°F+1.8°NCLIMGRID
2023Oct59.1°F57.8°F+1.3°NCLIMGRID
2023Nov48.9°F46.5°F+2.4°NCLIMGRID
2023Dec43.6°F37.1°F+6.5°NCLIMGRID
2024Jan31.2°F33.2°F-2.0°NCLIMGRID
2024Feb48.4°F37.6°F+10.8°NCLIMGRID
2024Mar52.6°F47.7°F+4.9°NCLIMGRID
2024Apr59.7°F57.2°F+2.5°NCLIMGRID
2024May69.0°F64.8°F+4.2°NCLIMGRID
2024Jun75.3°F72.7°F+2.5°NCLIMGRID
2024Jul76.7°F77.5°F-0.9°NCLIMGRID
2024Aug77.2°F76.0°F+1.2°NCLIMGRID
2024Sep69.8°F68.7°F+1.0°NCLIMGRID
2024Oct63.0°F57.8°F+5.2°NCLIMGRID
2024Nov51.3°F46.5°F+4.8°NCLIMGRID
2024Dec42.2°F37.1°F+5.1°NCLIMGRID
2025Jan32.2°F33.2°F-0.9°NCLIMGRID
2025Feb38.6°F37.6°F+0.9°NCLIMGRID
2025Mar54.0°F47.7°F+6.3°NCLIMGRID
2025Apr59.4°F57.2°F+2.2°NCLIMGRID
2025May64.4°F64.8°F-0.4°NCLIMGRID
2025Jun75.5°F72.7°F+2.8°NCLIMGRID
2025Jul79.7°F77.5°F+2.2°NCLIMGRID
2025Aug76.4°F76.0°F+0.4°NCLIMGRID
2025Sep71.4°F68.7°F+2.6°NCLIMGRID
2025Oct61.8°F57.8°F+4.0°NCLIMGRID
2025Nov52.1°F46.5°F+5.6°NCLIMGRID
2025Dec43.1°F37.1°F+5.9°NCLIMGRID
2026Jan36.0°F33.2°F+2.8°NCLIMGRID
2026Feb47.4°F37.6°F+9.8°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
January33.2°F26/26
February37.6°F26/26
March47.7°F26/26
April57.2°F26/26
May64.8°F26/26
June72.7°F26/26
July77.5°F26/26
August76.0°F26/26
September68.7°F26/26
October57.8°F26/26
November46.5°F26/26
December37.1°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 Alpena, Arkansas getting warmer?

Based on 96+ years of NOAA temperature records, Alpena has changed at a rate of approximately 0.07°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 Alpena?

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

Where does the temperature data for Alpena 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 Alpena's climate profile.

How are the climate visualizations for Alpena created?

Three visualizations are generated from Alpena'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 Alpena's temperature data?

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

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