Climate Change in Hartsville, Indiana

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

Based on our analysis of 96 years of temperature data near Hartsville, IN, this area shows relatively stable temperatures of approximately +0.1°F per decade. 10 of the last 10 years recorded above-average temperatures, and 2024 was the warmest year on record at +4.2°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.1°F

per decade

Warmest Year

2024

+4.2°F anomaly

Recent Warm Years

10 / 10

above-average years

Decade Shift

+0.9°F

2020s vs 1930s

Compared to the National Average

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

National: +0.20°F/decade
Hartsville: +0.09°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 Hartsville's long-term warming trend.

Temperature anomaly spiral for Hartsville, Indiana
Climate spiral: monthly temperature anomalies from 96+ years of NOAA records for Hartsville, IN.

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 Hartsville, Indiana
Warming stripes: each stripe is one year of average temperature anomaly for Hartsville, IN.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.09°F per decade quantifies the rate of change.

Temperature trend chart for Hartsville, Indiana
Linear trend: annual temperature anomalies with trend line for Hartsville, IN.

Temperature by Decade

1930s
+1.74°F
1940s
+1.02°F
1950s
+0.81°F
1960s
-0.60°F
1970s
-0.24°F
1980s
+0.10°F
1990s
+0.98°F
2000s
+1.28°F
2010s
+1.72°F
2020s
+2.55°F

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

Anomaly Scale

-5.2°F Colder Normal +7.0°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 Hartsville, IN. Filter by decade or download as CSV.

Data Sources & Audit

Station
nClimGrid 5km Grid Point
Distance
0.9 mi
Coverage
99.1%
Records
1,154
Range
1930-01 – 2026-02
Full Data Audit 1,154 records
YearMonthTempBaselineAnomalySourceGap
1930Jan26.8°F26.6°F+0.2°NCLIMGRID
1930Feb41.0°F30.5°F+10.5°NCLIMGRID
1930Mar39.8°F41.9°F-2.1°NCLIMGRID
1930Apr55.0°F52.5°F+2.5°NCLIMGRID
1930May64.3°F62.3°F+2.0°NCLIMGRID
1930Jun72.0°F71.2°F+0.9°NCLIMGRID
1930Jul78.6°F74.9°F+3.7°NCLIMGRID
1930Aug74.8°F72.7°F+2.1°NCLIMGRID
1930Sep69.1°F66.2°F+2.8°NCLIMGRID
1930Oct52.4°F54.0°F-1.6°NCLIMGRID
1930Nov42.9°F43.1°F-0.1°NCLIMGRID
1930Dec31.3°F32.7°F-1.4°NCLIMGRID
1931Jan32.8°F26.6°F+6.1°NCLIMGRID
1931Feb37.1°F30.5°F+6.6°NCLIMGRID
1931Mar36.6°F41.9°F-5.3°NCLIMGRID
1931Apr53.1°F52.5°F+0.6°NCLIMGRID
1931May59.9°F62.3°F-2.4°NCLIMGRID
1931Jun74.8°F71.2°F+3.6°NCLIMGRID
1931Jul79.2°F74.9°F+4.3°NCLIMGRID
1931Aug74.2°F72.7°F+1.4°NCLIMGRID
1931Sep72.0°F66.2°F+5.7°NCLIMGRID
1931Oct58.1°F54.0°F+4.1°NCLIMGRID
1931Nov50.5°F43.1°F+7.5°NCLIMGRID
1931Dec40.6°F32.7°F+7.8°NCLIMGRID
1932Jan39.2°F26.6°F+12.6°NCLIMGRID
1932Feb39.7°F30.5°F+9.1°NCLIMGRID
1932Mar35.6°F41.9°F-6.3°NCLIMGRID
1932Apr51.6°F52.5°F-0.9°NCLIMGRID
1932May63.2°F62.3°F+0.9°NCLIMGRID
1932Jun73.3°F71.2°F+2.1°NCLIMGRID
1932Jul76.8°F74.9°F+2.0°NCLIMGRID
1932Aug74.2°F72.7°F+1.5°NCLIMGRID
1932Sep66.6°F66.2°F+0.4°NCLIMGRID
1932Oct54.3°F54.0°F+0.3°NCLIMGRID
1932Nov38.8°F43.1°F-4.3°NCLIMGRID
1932Dec32.1°F32.7°F-0.7°NCLIMGRID
1933Jan38.0°F26.6°F+11.3°NCLIMGRID
1933Feb32.3°F30.5°F+1.7°NCLIMGRID
1933Mar40.8°F41.9°F-1.2°NCLIMGRID
1933Apr51.4°F52.5°F-1.1°NCLIMGRID
1933May65.6°F62.3°F+3.3°NCLIMGRID
1933Jun77.4°F71.2°F+6.3°NCLIMGRID
1933Jul76.5°F74.9°F+1.6°NCLIMGRID
1933Aug73.3°F72.7°F+0.6°NCLIMGRID
1933Sep73.0°F66.2°F+6.7°NCLIMGRID
1933Oct53.6°F54.0°F-0.4°NCLIMGRID
1933Nov40.4°F43.1°F-2.7°NCLIMGRID
1933Dec36.8°F32.7°F+4.1°NCLIMGRID
1934Jan34.4°F26.6°F+7.8°NCLIMGRID
1934Feb24.3°F30.5°F-6.2°NCLIMGRID
1934Mar37.4°F41.9°F-4.6°NCLIMGRID
1934Apr53.1°F52.5°F+0.6°NCLIMGRID
1934May66.4°F62.3°F+4.1°NCLIMGRID
1934Jun77.8°F71.2°F+6.6°NCLIMGRID
1934Jul81.3°F74.9°F+6.5°NCLIMGRID
1934Aug74.3°F72.7°F+1.6°NCLIMGRID
1934Sep67.5°F66.2°F+1.3°NCLIMGRID
1934Oct56.6°F54.0°F+2.6°NCLIMGRID
1934Nov46.7°F43.1°F+3.7°NCLIMGRID
1934Dec31.1°F32.7°F-1.6°NCLIMGRID
1935Jan32.0°F26.6°F+5.3°NCLIMGRID
1935Feb33.8°F30.5°F+3.3°NCLIMGRID
1935Mar48.6°F41.9°F+6.7°NCLIMGRID
1935Apr49.9°F52.5°F-2.6°NCLIMGRID
1935May58.9°F62.3°F-3.4°NCLIMGRID
1935Jun68.5°F71.2°F-2.7°NCLIMGRID
1935Jul78.3°F74.9°F+3.4°NCLIMGRID
1935Aug75.5°F72.7°F+2.8°NCLIMGRID
1935Sep66.6°F66.2°F+0.4°NCLIMGRID
1935Oct55.9°F54.0°F+1.8°NCLIMGRID
1935Nov42.5°F43.1°F-0.6°NCLIMGRID
1935Dec25.5°F32.7°F-7.2°NCLIMGRID
1936Jan22.7°F26.6°F-4.0°NCLIMGRID
1936Feb24.6°F30.5°F-6.0°NCLIMGRID
1936Mar45.5°F41.9°F+3.5°NCLIMGRID
1936Apr48.2°F52.5°F-4.3°NCLIMGRID
1936May66.0°F62.3°F+3.8°NCLIMGRID
1936Jun72.9°F71.2°F+1.8°NCLIMGRID
1936Jul82.1°F74.9°F+7.3°NCLIMGRID
1936Aug80.6°F72.7°F+7.9°NCLIMGRID
1936Sep71.5°F66.2°F+5.3°NCLIMGRID
1936Oct55.1°F54.0°F+1.1°NCLIMGRID
1936Nov38.2°F43.1°F-4.9°NCLIMGRID
1936Dec35.5°F32.7°F+2.8°NCLIMGRID
1937Jan35.1°F26.6°F+8.5°NCLIMGRID
1937Feb32.0°F30.5°F+1.5°NCLIMGRID
1937Mar36.8°F41.9°F-5.2°NCLIMGRID
1937Apr51.8°F52.5°F-0.7°NCLIMGRID
1937May62.7°F62.3°F+0.4°NCLIMGRID
1937Jun72.0°F71.2°F+0.9°NCLIMGRID
1937Jul74.9°F74.9°F+0.1°NCLIMGRID
1937Aug76.2°F72.7°F+3.5°NCLIMGRID
1937Sep64.7°F66.2°F-1.5°NCLIMGRID
1937Oct52.3°F54.0°F-1.7°NCLIMGRID
1937Nov39.1°F43.1°F-4.0°NCLIMGRID
1937Dec29.8°F32.7°F-2.9°NCLIMGRID
1938Jan29.8°F26.6°F+3.2°NCLIMGRID
1938Feb39.6°F30.5°F+9.1°NCLIMGRID
1938Mar47.6°F41.9°F+5.7°NCLIMGRID
1938Apr55.2°F52.5°F+2.7°NCLIMGRID
1938May63.0°F62.3°F+0.7°NCLIMGRID
1938Jun70.4°F71.2°F-0.8°NCLIMGRID
1938Jul76.4°F74.9°F+1.5°NCLIMGRID
1938Aug76.2°F72.7°F+3.5°NCLIMGRID
1938Sep68.7°F66.2°F+2.5°NCLIMGRID
1938Oct57.3°F54.0°F+3.3°NCLIMGRID
1938Nov44.8°F43.1°F+1.8°NCLIMGRID
1938Dec33.2°F32.7°F+0.5°NCLIMGRID
1939Jan34.5°F26.6°F+7.9°NCLIMGRID
1939Feb32.9°F30.5°F+2.3°NCLIMGRID
1939Mar43.8°F41.9°F+1.8°NCLIMGRID
1939Apr49.2°F52.5°F-3.3°NCLIMGRID
1939May65.2°F62.3°F+2.9°NCLIMGRID
1939Jun74.2°F71.2°F+3.0°NCLIMGRID
1939Jul75.1°F74.9°F+0.3°NCLIMGRID
1939Aug73.9°F72.7°F+1.2°NCLIMGRID
1939Sep72.6°F66.2°F+6.3°NCLIMGRID
1939Oct57.3°F54.0°F+3.3°NCLIMGRID
1939Nov40.0°F43.1°F-3.1°NCLIMGRID
1939Dec35.6°F32.7°F+2.9°NCLIMGRID
1940Jan15.5°F26.6°F-11.1°NCLIMGRID
1940Feb31.6°F30.5°F+1.1°NCLIMGRID
1940Mar38.5°F41.9°F-3.4°NCLIMGRID
1940Apr49.1°F52.5°F-3.4°NCLIMGRID
1940May59.6°F62.3°F-2.7°NCLIMGRID
1940Jun72.3°F71.2°F+1.1°NCLIMGRID
1940Jul75.4°F74.9°F+0.5°NCLIMGRID
1940Aug75.5°F72.7°F+2.8°NCLIMGRID
1940Sep64.8°F66.2°F-1.4°NCLIMGRID
1940Oct58.1°F54.0°F+4.1°NCLIMGRID
1940Nov41.0°F43.1°F-2.1°NCLIMGRID
1940Dec38.1°F32.7°F+5.4°NCLIMGRID
1941Jan30.7°F26.6°F+4.1°NCLIMGRID
1941Feb27.9°F30.5°F-2.6°NCLIMGRID
1941Mar35.9°F41.9°F-6.0°NCLIMGRID
1941Apr56.8°F52.5°F+4.3°NCLIMGRID
1941May65.7°F62.3°F+3.4°NCLIMGRID
1941Jun72.6°F71.2°F+1.4°NCLIMGRID
1941Jul77.0°F74.9°F+2.2°NCLIMGRID
1941Aug75.0°F72.7°F+2.3°NCLIMGRID
1941Sep70.6°F66.2°F+4.4°NCLIMGRID
1941Oct59.7°F54.0°F+5.7°NCLIMGRID
1941Nov43.1°F43.1°F+0.0°NCLIMGRID
1941Dec37.8°F32.7°F+5.1°NCLIMGRID
1942Jan27.9°F26.6°F+1.3°NCLIMGRID
1942Feb28.5°F30.5°F-2.1°NCLIMGRID
1942Mar44.2°F41.9°F+2.3°NCLIMGRID
1942Apr56.5°F52.5°F+4.0°NCLIMGRID
1942May64.3°F62.3°F+2.0°NCLIMGRID
1942Jun72.8°F71.2°F+1.7°NCLIMGRID
1942Jul76.5°F74.9°F+1.7°NCLIMGRID
1942Aug73.1°F72.7°F+0.4°NCLIMGRID
1942Sep66.4°F66.2°F+0.2°NCLIMGRID
1942Oct56.0°F54.0°F+2.0°NCLIMGRID
1942Nov45.5°F43.1°F+2.4°NCLIMGRID
1942Dec29.0°F32.7°F-3.7°NCLIMGRID
1943Jan31.5°F26.6°F+4.8°NCLIMGRID
1943Feb34.5°F30.5°F+4.0°NCLIMGRID
1943Mar38.0°F41.9°F-3.9°NCLIMGRID
1943Apr50.3°F52.5°F-2.1°NCLIMGRID
1943May63.8°F62.3°F+1.5°NCLIMGRID
1943Jun76.6°F71.2°F+5.4°NCLIMGRID
1943Jul76.9°F74.9°F+2.0°NCLIMGRID
1943Aug75.6°F72.7°F+2.9°NCLIMGRID
1943Sep64.0°F66.2°F-2.3°NCLIMGRID
1943Oct53.9°F54.0°F-0.1°NCLIMGRID
1943Nov40.1°F43.1°F-3.0°NCLIMGRID
1943Dec30.0°F32.7°F-2.7°NCLIMGRID
1944Jan33.2°F26.6°F+6.6°NCLIMGRID
1944Feb35.4°F30.5°F+4.9°NCLIMGRID
1944Mar39.6°F41.9°F-2.4°NCLIMGRID
1944Apr52.4°F52.5°F-0.1°NCLIMGRID
1944May69.4°F62.3°F+7.1°NCLIMGRID
1944Jun76.2°F71.2°F+5.1°NCLIMGRID
1944Jul76.5°F74.9°F+1.6°NCLIMGRID
1944Aug74.8°F72.7°F+2.1°NCLIMGRID
1944Sep66.5°F66.2°F+0.3°NCLIMGRID
1944Oct54.6°F54.0°F+0.6°NCLIMGRID
1944Nov43.2°F43.1°F+0.2°NCLIMGRID
1944Dec27.6°F32.7°F-5.2°NCLIMGRID
1945Jan24.1°F26.6°F-2.5°NCLIMGRID
1945Feb32.1°F30.5°F+1.6°NCLIMGRID
1945Mar52.4°F41.9°F+10.5°NCLIMGRID
1945Apr54.1°F52.5°F+1.6°NCLIMGRID
1945May58.7°F62.3°F-3.6°NCLIMGRID
1945Jun69.9°F71.2°F-1.3°NCLIMGRID
1945Jul73.2°F74.9°F-1.6°NCLIMGRID
1945Aug73.1°F72.7°F+0.4°NCLIMGRID
1945Sep69.1°F66.2°F+2.9°NCLIMGRID
1945Oct52.7°F54.0°F-1.3°NCLIMGRID
1945Nov43.7°F43.1°F+0.6°NCLIMGRID
1945Dec25.0°F32.7°F-7.7°NCLIMGRID
1946Jan30.8°F26.6°F+4.2°NCLIMGRID
1946Feb35.3°F30.5°F+4.7°NCLIMGRID
1946Mar53.0°F41.9°F+11.0°NCLIMGRID
1946Apr54.3°F52.5°F+1.8°NCLIMGRID
1946May60.6°F62.3°F-1.7°NCLIMGRID
1946Jun72.0°F71.2°F+0.8°NCLIMGRID
1946Jul74.5°F74.9°F-0.4°NCLIMGRID
1946Aug68.8°F72.7°F-3.9°NCLIMGRID
1946Sep66.4°F66.2°F+0.2°NCLIMGRID
1946Oct58.1°F54.0°F+4.1°NCLIMGRID
1946Nov46.9°F43.1°F+3.9°NCLIMGRID
1946Dec37.0°F32.7°F+4.3°NCLIMGRID
1947Jan34.7°F26.6°F+8.1°NCLIMGRID
1947Feb23.8°F30.5°F-6.7°NCLIMGRID
1947Mar34.1°F41.9°F-7.8°NCLIMGRID
1947Apr52.8°F52.5°F+0.3°NCLIMGRID
1947May60.1°F62.3°F-2.2°NCLIMGRID
1947Jun69.9°F71.2°F-1.3°NCLIMGRID
1947Jul71.0°F74.9°F-3.9°NCLIMGRID
1947Aug79.5°F72.7°F+6.8°NCLIMGRID
1947Sep67.7°F66.2°F+1.5°NCLIMGRID
1947Oct61.8°F54.0°F+7.8°NCLIMGRID
1947Nov38.9°F43.1°F-4.2°NCLIMGRID
1947Dec33.5°F32.7°F+0.7°NCLIMGRID
1948Jan21.9°F26.6°F-4.7°NCLIMGRID
1948Feb32.7°F30.5°F+2.1°NCLIMGRID
1948Mar43.7°F41.9°F+1.8°NCLIMGRID
1948Apr56.3°F52.5°F+3.8°NCLIMGRID
1948May62.3°F62.3°F+0.0°NCLIMGRID
1948Jun72.4°F71.2°F+1.3°NCLIMGRID
1948Jul75.5°F74.9°F+0.6°NCLIMGRID
1948Aug73.5°F72.7°F+0.7°NCLIMGRID
1948Sep68.0°F66.2°F+1.7°NCLIMGRID
1948Oct51.7°F54.0°F-2.3°NCLIMGRID
1948Nov45.8°F43.1°F+2.7°NCLIMGRID
1948Dec35.0°F32.7°F+2.3°NCLIMGRID
1949Jan36.1°F26.6°F+9.5°NCLIMGRID
1949Feb36.4°F30.5°F+5.9°NCLIMGRID
1949Mar42.3°F41.9°F+0.3°NCLIMGRID
1949Apr51.3°F52.5°F-1.2°NCLIMGRID
1949May64.8°F62.3°F+2.5°NCLIMGRID
1949Jun74.3°F71.2°F+3.1°NCLIMGRID
1949Jul79.5°F74.9°F+4.6°NCLIMGRID
1949Aug74.8°F72.7°F+2.0°NCLIMGRID
1949Sep61.4°F66.2°F-4.8°NCLIMGRID
1949Oct59.6°F54.0°F+5.5°NCLIMGRID
1949Nov42.9°F43.1°F-0.2°NCLIMGRID
1949Dec36.2°F32.7°F+3.4°NCLIMGRID
1950Jan39.1°F26.6°F+12.5°NCLIMGRID
1950Feb33.9°F30.5°F+3.3°NCLIMGRID
1950Mar38.8°F41.9°F-3.2°NCLIMGRID
1950Apr48.0°F52.5°F-4.5°NCLIMGRID
1950May64.6°F62.3°F+2.3°NCLIMGRID
1950Jun70.3°F71.2°F-0.9°NCLIMGRID
1950Jul72.6°F74.9°F-2.3°NCLIMGRID
1950Aug70.9°F72.7°F-1.8°NCLIMGRID
1950Sep65.0°F66.2°F-1.2°NCLIMGRID
1950Oct58.8°F54.0°F+4.8°NCLIMGRID
1950Nov36.4°F43.1°F-6.7°NCLIMGRID
1950Dec25.4°F32.7°F-7.4°NCLIMGRID
1951Jan31.5°F26.6°F+4.8°NCLIMGRID
1951Feb31.6°F30.5°F+1.0°NCLIMGRID
1951Mar39.2°F41.9°F-2.7°NCLIMGRID
1951Apr50.1°F52.5°F-2.4°NCLIMGRID
1951May64.7°F62.3°F+2.4°NCLIMGRID
1951Jun71.6°F71.2°F+0.4°NCLIMGRID
1951Jul74.9°F74.9°F+0.0°NCLIMGRID
1951Aug73.1°F72.7°F+0.4°NCLIMGRID
1951Sep64.5°F66.2°F-1.8°NCLIMGRID
1951Oct56.5°F54.0°F+2.5°NCLIMGRID
1951Nov35.6°F43.1°F-7.4°NCLIMGRID
1951Dec32.1°F32.7°F-0.6°NCLIMGRID
1952Jan34.7°F26.6°F+8.1°NCLIMGRID
1952Feb36.1°F30.5°F+5.5°NCLIMGRID
1952Mar40.8°F41.9°F-1.1°NCLIMGRID
1952Apr52.0°F52.5°F-0.5°NCLIMGRID
1952May62.3°F62.3°F+0.0°NCLIMGRID
1952Jun77.4°F71.2°F+6.2°NCLIMGRID
1952Jul78.1°F74.9°F+3.2°NCLIMGRID
1952Aug73.7°F72.7°F+1.0°NCLIMGRID
1952Sep66.0°F66.2°F-0.2°NCLIMGRID
1952Oct50.8°F54.0°F-3.2°NCLIMGRID
1952Nov43.8°F43.1°F+0.8°NCLIMGRID
1952Dec35.9°F32.7°F+3.2°NCLIMGRID
1953Jan34.3°F26.6°F+7.6°NCLIMGRID
1953Feb37.0°F30.5°F+6.5°NCLIMGRID
1953Mar43.7°F41.9°F+1.8°NCLIMGRID
1953Apr48.9°F52.5°F-3.6°NCLIMGRID
1953May65.5°F62.3°F+3.2°NCLIMGRID
1953Jun76.3°F71.2°F+5.1°NCLIMGRID
1953Jul75.7°F74.9°F+0.9°NCLIMGRID
1953Aug74.3°F72.7°F+1.6°NCLIMGRID
1953Sep68.0°F66.2°F+1.8°NCLIMGRID
1953Oct57.7°F54.0°F+3.7°NCLIMGRID
1953Nov42.9°F43.1°F-0.1°NCLIMGRID
1953Dec33.1°F32.7°F+0.4°NCLIMGRID
1954Jan31.6°F26.6°F+5.0°NCLIMGRID
1954Feb40.6°F30.5°F+10.0°NCLIMGRID
1954Mar38.9°F41.9°F-3.0°NCLIMGRID
1954Apr57.8°F52.5°F+5.3°NCLIMGRID
1954May57.8°F62.3°F-4.5°NCLIMGRID
1954Jun74.8°F71.2°F+3.7°NCLIMGRID
1954Jul77.8°F74.9°F+3.0°NCLIMGRID
1954Aug74.8°F72.7°F+2.0°NCLIMGRID
1954Sep69.9°F66.2°F+3.7°NCLIMGRID
1954Oct57.2°F54.0°F+3.2°NCLIMGRID
1954Nov41.9°F43.1°F-1.2°NCLIMGRID
1954Dec32.9°F32.7°F+0.2°NCLIMGRID
1955Jan28.5°F26.6°F+1.8°NCLIMGRID
1955Feb32.9°F30.5°F+2.4°NCLIMGRID
1955Mar42.3°F41.9°F+0.3°NCLIMGRID
1955Apr57.7°F52.5°F+5.3°NCLIMGRID
1955May64.0°F62.3°F+1.8°NCLIMGRID
1955Jun66.7°F71.2°F-4.5°NCLIMGRID
1955Jul79.2°F74.9°F+4.3°NCLIMGRID
1955Aug76.5°F72.7°F+3.8°NCLIMGRID
1955Sep69.4°F66.2°F+3.2°NCLIMGRID
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1984Mar33.9°F41.9°F-8.1°NCLIMGRID
1984Apr50.5°F52.5°F-2.0°NCLIMGRID
1984May59.2°F62.3°F-3.1°NCLIMGRID
1984Jun74.4°F71.2°F+3.2°NCLIMGRID
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1984Aug73.3°F72.7°F+0.6°NCLIMGRID
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1984Nov42.1°F43.1°F-0.9°NCLIMGRID
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1985Apr57.1°F52.5°F+4.6°NCLIMGRID
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1986Apr55.0°F52.5°F+2.5°NCLIMGRID
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1986Jul76.8°F74.9°F+2.0°NCLIMGRID
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1986Oct55.6°F54.0°F+1.6°NCLIMGRID
1986Nov41.3°F43.1°F-1.7°NCLIMGRID
1986Dec32.5°F32.7°F-0.2°NCLIMGRID
1987Jan28.8°F26.6°F+2.2°NCLIMGRID
1987Feb36.1°F30.5°F+5.5°NCLIMGRID
1987Mar44.8°F41.9°F+2.9°NCLIMGRID
1987Apr51.8°F52.5°F-0.7°NCLIMGRID
1987May67.9°F62.3°F+5.6°NCLIMGRID
1987Jun73.5°F71.2°F+2.3°NCLIMGRID
1987Jul75.7°F74.9°F+0.9°NCLIMGRID
1987Aug74.3°F72.7°F+1.6°NCLIMGRID
1987Sep67.8°F66.2°F+1.6°NCLIMGRID
1987Oct48.3°F54.0°F-5.7°NCLIMGRID
1987Nov47.2°F43.1°F+4.1°NCLIMGRID
1987Dec36.3°F32.7°F+3.6°NCLIMGRID
1988Jan25.5°F26.6°F-1.1°NCLIMGRID
1988Feb28.8°F30.5°F-1.8°NCLIMGRID
1988Mar41.5°F41.9°F-0.4°NCLIMGRID
1988Apr51.8°F52.5°F-0.7°NCLIMGRID
1988May63.7°F62.3°F+1.4°NCLIMGRID
1988Jun72.3°F71.2°F+1.1°NCLIMGRID
1988Jul76.9°F74.9°F+2.1°NCLIMGRID
1988Aug76.6°F72.7°F+3.8°NCLIMGRID
1988Sep66.1°F66.2°F-0.2°NCLIMGRID
1988Oct47.9°F54.0°F-6.1°NCLIMGRID
1988Nov43.5°F43.1°F+0.4°NCLIMGRID
1988Dec32.4°F32.7°F-0.4°NCLIMGRID
1989Jan36.3°F26.6°F+9.7°NCLIMGRID
1989Feb29.1°F30.5°F-1.4°NCLIMGRID
1989Mar42.5°F41.9°F+0.6°NCLIMGRID
1989Apr51.4°F52.5°F-1.0°NCLIMGRID
1989May58.9°F62.3°F-3.4°NCLIMGRID
1989Jun70.7°F71.2°F-0.5°NCLIMGRID
1989Jul74.9°F74.9°F+0.1°NCLIMGRID
1989Aug72.1°F72.7°F-0.6°NCLIMGRID
1989Sep64.4°F66.2°F-1.8°NCLIMGRID
1989Oct55.3°F54.0°F+1.3°NCLIMGRID
1989Nov42.2°F43.1°F-0.9°NCLIMGRID
1989Dec19.2°F32.7°F-13.5°NCLIMGRID
1990Jan38.1°F26.6°F+11.5°NCLIMGRID
1990Feb39.1°F30.5°F+8.6°NCLIMGRID
1990Mar45.9°F41.9°F+4.0°NCLIMGRID
1990Apr51.2°F52.5°F-1.3°NCLIMGRID
1990May59.6°F62.3°F-2.7°NCLIMGRID
1990Jun70.5°F71.2°F-0.6°NCLIMGRID
1990Jul73.5°F74.9°F-1.3°NCLIMGRID
1990Aug71.5°F72.7°F-1.2°NCLIMGRID
1990Sep67.2°F66.2°F+0.9°NCLIMGRID
1990Oct53.9°F54.0°F-0.1°NCLIMGRID
1990Nov47.8°F43.1°F+4.7°NCLIMGRID
1990Dec36.2°F32.7°F+3.5°NCLIMGRID
1991Jan28.8°F26.6°F+2.2°NCLIMGRID
1991Feb36.0°F30.5°F+5.5°NCLIMGRID
1991Mar44.9°F41.9°F+2.9°NCLIMGRID
1991Apr55.6°F52.5°F+3.1°NCLIMGRID
1991May69.5°F62.3°F+7.2°NCLIMGRID
1991Jun74.6°F71.2°F+3.4°NCLIMGRID
1991Jul76.5°F74.9°F+1.6°NCLIMGRID
1991Aug74.4°F72.7°F+1.6°NCLIMGRID
1991Sep66.7°F66.2°F+0.5°NCLIMGRID
1991Oct57.2°F54.0°F+3.2°NCLIMGRID
1991Nov40.6°F43.1°F-2.5°NCLIMGRID
1991Dec36.1°F32.7°F+3.3°NCLIMGRID
1992Jan31.9°F26.6°F+5.3°NCLIMGRID
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1992Mar42.9°F41.9°F+0.9°NCLIMGRID
1992Apr52.4°F52.5°F+0.0°NCLIMGRID
1992May60.3°F62.3°F-2.0°NCLIMGRID
1992Jun67.4°F71.2°F-3.8°NCLIMGRID
1992Jul73.5°F74.9°F-1.3°NCLIMGRID
1992Aug68.7°F72.7°F-4.0°NCLIMGRID
1992Sep64.6°F66.2°F-1.6°NCLIMGRID
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1992Nov43.8°F43.1°F+0.7°NCLIMGRID
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1993Jan32.8°F26.6°F+6.2°NCLIMGRID
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1993May63.1°F62.3°F+0.8°NCLIMGRID
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1993Aug74.4°F72.7°F+1.7°NCLIMGRID
1993Sep62.6°F66.2°F-3.6°NCLIMGRID
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1993Nov42.5°F43.1°F-0.5°NCLIMGRID
1993Dec32.8°F32.7°F+0.0°NCLIMGRID
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1994Mar41.1°F41.9°F-0.8°NCLIMGRID
1994Apr53.9°F52.5°F+1.5°NCLIMGRID
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1994Jun74.2°F71.2°F+3.1°NCLIMGRID
1994Jul74.6°F74.9°F-0.2°NCLIMGRID
1994Aug70.9°F72.7°F-1.8°NCLIMGRID
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1994Oct55.4°F54.0°F+1.4°NCLIMGRID
1994Nov48.4°F43.1°F+5.4°NCLIMGRID
1994Dec38.5°F32.7°F+5.7°NCLIMGRID
1995Jan30.1°F26.6°F+3.4°NCLIMGRID
1995Feb30.1°F30.5°F-0.4°NCLIMGRID
1995Mar44.8°F41.9°F+2.8°NCLIMGRID
1995Apr52.8°F52.5°F+0.3°NCLIMGRID
1995May61.6°F62.3°F-0.7°NCLIMGRID
1995Jun72.6°F71.2°F+1.4°NCLIMGRID
1995Jul75.8°F74.9°F+0.9°NCLIMGRID
1995Aug78.0°F72.7°F+5.3°NCLIMGRID
1995Sep64.0°F66.2°F-2.2°NCLIMGRID
1995Oct55.3°F54.0°F+1.3°NCLIMGRID
1995Nov38.3°F43.1°F-4.8°NCLIMGRID
1995Dec28.9°F32.7°F-3.8°NCLIMGRID
1996Jan26.2°F26.6°F-0.5°NCLIMGRID
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1996Mar35.3°F41.9°F-6.6°NCLIMGRID
1996Apr49.5°F52.5°F-3.0°NCLIMGRID
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1996Jun71.4°F71.2°F+0.2°NCLIMGRID
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1996Nov37.1°F43.1°F-6.0°NCLIMGRID
1996Dec36.0°F32.7°F+3.3°NCLIMGRID
1997Jan26.1°F26.6°F-0.5°NCLIMGRID
1997Feb37.2°F30.5°F+6.6°NCLIMGRID
1997Mar44.1°F41.9°F+2.1°NCLIMGRID
1997Apr48.2°F52.5°F-4.3°NCLIMGRID
1997May57.7°F62.3°F-4.6°NCLIMGRID
1997Jun69.3°F71.2°F-1.8°NCLIMGRID
1997Jul75.1°F74.9°F+0.2°NCLIMGRID
1997Aug70.9°F72.7°F-1.8°NCLIMGRID
1997Sep65.3°F66.2°F-0.9°NCLIMGRID
1997Oct54.2°F54.0°F+0.2°NCLIMGRID
1997Nov39.9°F43.1°F-3.1°NCLIMGRID
1997Dec34.7°F32.7°F+2.0°NCLIMGRID
1998Jan36.9°F26.6°F+10.2°NCLIMGRID
1998Feb40.1°F30.5°F+9.5°NCLIMGRID
1998Mar43.1°F41.9°F+1.2°NCLIMGRID
1998Apr53.3°F52.5°F+0.8°NCLIMGRID
1998May67.1°F62.3°F+4.8°NCLIMGRID
1998Jun72.0°F71.2°F+0.8°NCLIMGRID
1998Jul73.9°F74.9°F-1.0°NCLIMGRID
1998Aug74.4°F72.7°F+1.7°NCLIMGRID
1998Sep70.4°F66.2°F+4.2°NCLIMGRID
1998Oct56.5°F54.0°F+2.5°NCLIMGRID
1998Nov45.4°F43.1°F+2.3°NCLIMGRID
1998Dec37.8°F32.7°F+5.1°NCLIMGRID
1999Jan30.1°F26.6°F+3.5°NCLIMGRID
1999Feb37.9°F30.5°F+7.3°NCLIMGRID
1999Mar38.4°F41.9°F-3.6°NCLIMGRID
1999Apr55.1°F52.5°F+2.6°NCLIMGRID
1999May64.9°F62.3°F+2.6°NCLIMGRID
1999Jun73.0°F71.2°F+1.8°NCLIMGRID
1999Jul78.5°F74.9°F+3.7°NCLIMGRID
1999Aug72.7°F72.7°F+0.0°NCLIMGRID
1999Sep66.5°F66.2°F+0.2°NCLIMGRID
1999Oct54.9°F54.0°F+0.9°NCLIMGRID
1999Nov48.9°F43.1°F+5.9°NCLIMGRID
1999Dec34.5°F32.7°F+1.7°NCLIMGRID
2000Jan28.8°F26.6°F+2.2°NCLIMGRID
2000Feb38.7°F30.5°F+8.2°NCLIMGRID
2000Mar47.1°F41.9°F+5.2°NCLIMGRID
2000Apr51.3°F52.5°F-1.2°NCLIMGRID
2000May65.6°F62.3°F+3.3°NCLIMGRID
2000Jun72.1°F71.2°F+0.9°NCLIMGRID
2000Jul72.8°F74.9°F-2.1°NCLIMGRID
2000Aug72.2°F72.7°F-0.5°NCLIMGRID
2000Sep64.8°F66.2°F-1.5°NCLIMGRID
2000Oct58.0°F54.0°F+4.0°NCLIMGRID
2000Nov41.7°F43.1°F-1.4°NCLIMGRID
2000Dec21.9°F32.7°F-10.8°NCLIMGRID
2001Jan29.3°F26.6°F+2.7°NCLIMGRID
2001Feb35.7°F30.5°F+5.1°NCLIMGRID
2001Mar39.1°F41.9°F-2.8°NCLIMGRID
2001Apr58.3°F52.5°F+5.8°NCLIMGRID
2001May65.0°F62.3°F+2.7°NCLIMGRID
2001Jun69.9°F71.2°F-1.3°NCLIMGRID
2001Jul74.2°F74.9°F-0.6°NCLIMGRID
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2001Nov49.7°F43.1°F+6.6°NCLIMGRID
2001Dec38.9°F32.7°F+6.2°NCLIMGRID
2002Jan35.9°F26.6°F+9.2°NCLIMGRID
2002Feb37.3°F30.5°F+6.8°NCLIMGRID
2002Mar41.1°F41.9°F-0.9°NCLIMGRID
2002Apr55.6°F52.5°F+3.1°NCLIMGRID
2002May59.8°F62.3°F-2.5°NCLIMGRID
2002Jun73.7°F71.2°F+2.5°NCLIMGRID
2002Jul77.5°F74.9°F+2.6°NCLIMGRID
2002Aug76.0°F72.7°F+3.3°NCLIMGRID
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2002Oct53.9°F54.0°F-0.1°NCLIMGRID
2002Nov41.1°F43.1°F-2.0°NCLIMGRID
2002Dec33.6°F32.7°F+0.9°NCLIMGRID
2003Jan23.8°F26.6°F-2.8°NCLIMGRID
2003Feb27.5°F30.5°F-3.0°NCLIMGRID
2003Mar45.2°F41.9°F+3.3°NCLIMGRID
2003Apr54.8°F52.5°F+2.3°NCLIMGRID
2003May62.5°F62.3°F+0.2°NCLIMGRID
2003Jun67.5°F71.2°F-3.6°NCLIMGRID
2003Jul73.8°F74.9°F-1.0°NCLIMGRID
2003Aug74.5°F72.7°F+1.8°NCLIMGRID
2003Sep64.1°F66.2°F-2.2°NCLIMGRID
2003Oct54.5°F54.0°F+0.5°NCLIMGRID
2003Nov47.3°F43.1°F+4.2°NCLIMGRID
2003Dec34.7°F32.7°F+2.0°NCLIMGRID
2004Jan26.3°F26.6°F-0.4°NCLIMGRID
2004Feb31.9°F30.5°F+1.4°NCLIMGRID
2004Mar45.7°F41.9°F+3.8°NCLIMGRID
2004Apr54.2°F52.5°F+1.7°NCLIMGRID
2004May67.9°F62.3°F+5.6°NCLIMGRID
2004Jun71.1°F71.2°F-0.1°NCLIMGRID
2004Jul73.0°F74.9°F-1.9°NCLIMGRID
2004Aug70.0°F72.7°F-2.7°NCLIMGRID
2004Sep68.1°F66.2°F+1.9°NCLIMGRID
2004Oct56.0°F54.0°F+2.0°NCLIMGRID
2004Nov47.8°F43.1°F+4.8°NCLIMGRID
2004Dec31.8°F32.7°F-0.9°NCLIMGRID
2005Jan33.2°F26.6°F+6.6°NCLIMGRID
2005Feb37.4°F30.5°F+6.8°NCLIMGRID
2005Mar38.8°F41.9°F-3.2°NCLIMGRID
2005Apr55.5°F52.5°F+3.0°NCLIMGRID
2005May59.8°F62.3°F-2.4°NCLIMGRID
2005Jun73.5°F71.2°F+2.3°NCLIMGRID
2005Jul75.7°F74.9°F+0.8°NCLIMGRID
2005Aug76.0°F72.7°F+3.2°NCLIMGRID
2005Sep69.7°F66.2°F+3.5°NCLIMGRID
2005Oct56.3°F54.0°F+2.3°NCLIMGRID
2005Nov45.8°F43.1°F+2.8°NCLIMGRID
2005Dec29.0°F32.7°F-3.7°NCLIMGRID
2006Jan40.6°F26.6°F+13.9°NCLIMGRID
2006Feb32.8°F30.5°F+2.2°NCLIMGRID
2006Mar41.7°F41.9°F-0.3°NCLIMGRID
2006Apr57.1°F52.5°F+4.6°NCLIMGRID
2006May61.0°F62.3°F-1.3°NCLIMGRID
2006Jun70.1°F71.2°F-1.1°NCLIMGRID
2006Jul75.5°F74.9°F+0.6°NCLIMGRID
2006Aug75.1°F72.7°F+2.4°NCLIMGRID
2006Sep63.1°F66.2°F-3.1°NCLIMGRID
2006Oct52.4°F54.0°F-1.6°NCLIMGRID
2006Nov44.7°F43.1°F+1.6°NCLIMGRID
2006Dec38.6°F32.7°F+5.9°NCLIMGRID
2007Jan34.5°F26.6°F+7.9°NCLIMGRID
2007Feb22.0°F30.5°F-8.6°NCLIMGRID
2007Mar49.3°F41.9°F+7.4°NCLIMGRID
2007Apr51.0°F52.5°F-1.5°NCLIMGRID
2007May67.1°F62.3°F+4.8°NCLIMGRID
2007Jun72.9°F71.2°F+1.8°NCLIMGRID
2007Jul72.4°F74.9°F-2.5°NCLIMGRID
2007Aug79.1°F72.7°F+6.4°NCLIMGRID
2007Sep70.6°F66.2°F+4.3°NCLIMGRID
2007Oct61.2°F54.0°F+7.2°NCLIMGRID
2007Nov43.1°F43.1°F+0.0°NCLIMGRID
2007Dec35.1°F32.7°F+2.4°NCLIMGRID
2008Jan29.3°F26.6°F+2.7°NCLIMGRID
2008Feb31.1°F30.5°F+0.6°NCLIMGRID
2008Mar40.4°F41.9°F-1.5°NCLIMGRID
2008Apr53.8°F52.5°F+1.3°NCLIMGRID
2008May59.3°F62.3°F-3.0°NCLIMGRID
2008Jun72.8°F71.2°F+1.6°NCLIMGRID
2008Jul73.7°F74.9°F-1.1°NCLIMGRID
2008Aug71.7°F72.7°F-1.0°NCLIMGRID
2008Sep68.4°F66.2°F+2.1°NCLIMGRID
2008Oct54.8°F54.0°F+0.8°NCLIMGRID
2008Nov41.4°F43.1°F-1.6°NCLIMGRID
2008Dec31.3°F32.7°F-1.4°NCLIMGRID
2009Jan24.7°F26.6°F-1.9°NCLIMGRID
2009Feb33.3°F30.5°F+2.8°NCLIMGRID
2009Mar45.9°F41.9°F+4.0°NCLIMGRID
2009Apr53.2°F52.5°F+0.7°NCLIMGRID
2009May63.5°F62.3°F+1.2°NCLIMGRID
2009Jun72.7°F71.2°F+1.6°NCLIMGRID
2009Jul69.7°F74.9°F-5.2°NCLIMGRID
2009Aug71.4°F72.7°F-1.3°NCLIMGRID
2009Sep66.3°F66.2°F+0.0°NCLIMGRID
2009Oct51.7°F54.0°F-2.3°NCLIMGRID
2009Nov47.2°F43.1°F+4.1°NCLIMGRID
2009Dec31.7°F32.7°F-1.0°NCLIMGRID
2010Jan25.8°F26.6°F-0.8°NCLIMGRID
2010Feb26.1°F30.5°F-4.5°NCLIMGRID
2010Mar44.6°F41.9°F+2.6°NCLIMGRID
2010Apr58.6°F52.5°F+6.1°NCLIMGRID
2010May65.3°F62.3°F+3.0°NCLIMGRID
2010Jun75.1°F71.2°F+3.9°NCLIMGRID
2010Jul77.0°F74.9°F+2.1°NCLIMGRID
2010Aug76.7°F72.7°F+4.0°NCLIMGRID
2010Sep69.0°F66.2°F+2.7°NCLIMGRID
2010Oct56.8°F54.0°F+2.8°NCLIMGRID
2010Nov43.8°F43.1°F+0.7°NCLIMGRID
2010Dec25.2°F32.7°F-7.6°NCLIMGRID
2011Jan25.6°F26.6°F-1.0°NCLIMGRID
2011Feb34.5°F30.5°F+4.0°NCLIMGRID
2011Mar43.9°F41.9°F+1.9°NCLIMGRID
2011Apr55.2°F52.5°F+2.7°NCLIMGRID
2011May62.8°F62.3°F+0.5°NCLIMGRID
2011Jun73.1°F71.2°F+1.9°NCLIMGRID
2011Jul79.9°F74.9°F+5.1°NCLIMGRID
2011Aug74.6°F72.7°F+1.8°NCLIMGRID
2011Sep64.9°F66.2°F-1.3°NCLIMGRID
2011Oct54.4°F54.0°F+0.4°NCLIMGRID
2011Nov48.7°F43.1°F+5.6°NCLIMGRID
2011Dec38.1°F32.7°F+5.4°NCLIMGRID
2012Jan34.5°F26.6°F+7.9°NCLIMGRID
2012Feb37.4°F30.5°F+6.9°NCLIMGRID
2012Mar56.1°F41.9°F+14.2°NCLIMGRID
2012Apr53.7°F52.5°F+1.2°NCLIMGRID
2012May69.1°F62.3°F+6.8°NCLIMGRID
2012Jun71.7°F71.2°F+0.5°NCLIMGRID
2012Jul80.7°F74.9°F+5.8°NCLIMGRID
2012Aug73.2°F72.7°F+0.5°NCLIMGRID
2012Sep65.0°F66.2°F-1.2°NCLIMGRID
2012Oct53.4°F54.0°F-0.6°NCLIMGRID
2012Nov41.1°F43.1°F-2.0°NCLIMGRID
2012Dec39.7°F32.7°F+6.9°NCLIMGRID
2013Jan31.9°F26.6°F+5.3°NCLIMGRID
2013Feb32.0°F30.5°F+1.4°NCLIMGRID
2013Mar36.8°F41.9°F-5.2°NCLIMGRID
2013Apr52.7°F52.5°F+0.2°NCLIMGRID
2013May65.4°F62.3°F+3.1°NCLIMGRID
2013Jun71.4°F71.2°F+0.3°NCLIMGRID
2013Jul73.0°F74.9°F-1.9°NCLIMGRID
2013Aug72.6°F72.7°F-0.1°NCLIMGRID
2013Sep67.8°F66.2°F+1.6°NCLIMGRID
2013Oct55.0°F54.0°F+1.0°NCLIMGRID
2013Nov40.3°F43.1°F-2.7°NCLIMGRID
2013Dec32.1°F32.7°F-0.6°NCLIMGRID
2014Jan21.7°F26.6°F-4.9°NCLIMGRID
2014Feb25.8°F30.5°F-4.7°NCLIMGRID
2014Mar37.3°F41.9°F-4.6°NCLIMGRID
2014Apr54.6°F52.5°F+2.1°NCLIMGRID
2014May64.1°F62.3°F+1.8°NCLIMGRID
2014Jun73.0°F71.2°F+1.8°NCLIMGRID
2014Jul69.7°F74.9°F-5.1°NCLIMGRID
2014Aug72.6°F72.7°F-0.1°NCLIMGRID
2014Sep65.0°F66.2°F-1.2°NCLIMGRID
2014Oct55.0°F54.0°F+1.0°NCLIMGRID
2014Nov36.9°F43.1°F-6.2°NCLIMGRID
2014Dec35.9°F32.7°F+3.1°NCLIMGRID
2015Jan28.9°F26.6°F+2.2°NCLIMGRID
2015Feb21.3°F30.5°F-9.2°NCLIMGRID
2015Mar39.7°F41.9°F-2.2°NCLIMGRID
2015Apr54.6°F52.5°F+2.1°NCLIMGRID
2015May66.1°F62.3°F+3.8°NCLIMGRID
2015Jun72.3°F71.2°F+1.2°NCLIMGRID
2015Jul73.5°F74.9°F-1.4°NCLIMGRID
2015Aug70.9°F72.7°F-1.8°NCLIMGRID
2015Sep69.5°F66.2°F+3.3°NCLIMGRID
2015Oct56.9°F54.0°F+2.9°NCLIMGRID
2015Nov48.4°F43.1°F+5.4°NCLIMGRID
2015Dec44.1°F32.7°F+11.4°NCLIMGRID
2016Jan29.2°F26.6°F+2.6°NCLIMGRID
2016Feb36.4°F30.5°F+5.9°NCLIMGRID
2016Mar49.3°F41.9°F+7.3°NCLIMGRID
2016Apr54.2°F52.5°F+1.7°NCLIMGRID
2016May61.3°F62.3°F-0.9°NCLIMGRID
2016Jun73.6°F71.2°F+2.5°NCLIMGRID
2016Jul74.4°F74.9°F-0.5°NCLIMGRID
2016Aug76.1°F72.7°F+3.4°NCLIMGRID
2016Sep70.5°F66.2°F+4.2°NCLIMGRID
2016Oct60.8°F54.0°F+6.8°NCLIMGRID
2016Nov47.8°F43.1°F+4.7°NCLIMGRID
2016Dec32.1°F32.7°F-0.7°NCLIMGRID
2017Jan36.4°F26.6°F+9.8°NCLIMGRID
2017Feb43.6°F30.5°F+13.1°NCLIMGRID
2017Mar45.3°F41.9°F+3.4°NCLIMGRID
2017Apr59.3°F52.5°F+6.8°NCLIMGRID
2017May62.3°F62.3°F+0.1°NCLIMGRID
2017Jun70.8°F71.2°F-0.4°NCLIMGRID
2017Jul74.6°F74.9°F-0.3°NCLIMGRID
2017Aug71.0°F72.7°F-1.7°NCLIMGRID
2017Sep67.4°F66.2°F+1.1°NCLIMGRID
2017Oct57.8°F54.0°F+3.7°NCLIMGRID
2017Nov43.7°F43.1°F+0.7°NCLIMGRID
2017Dec31.5°F32.7°F-1.2°NCLIMGRID
2018Jan26.7°F26.6°F+0.0°NCLIMGRID
2018Feb39.0°F30.5°F+8.5°NCLIMGRID
2018Mar40.0°F41.9°F-1.9°NCLIMGRID
2018Apr47.5°F52.5°F-5.0°NCLIMGRID
2018May71.1°F62.3°F+8.8°NCLIMGRID
2018Jun73.6°F71.2°F+2.5°NCLIMGRID
2018Jul74.4°F74.9°F-0.5°NCLIMGRID
2018Aug74.4°F72.7°F+1.6°NCLIMGRID
2018Sep70.5°F66.2°F+4.3°NCLIMGRID
2018Oct56.2°F54.0°F+2.2°NCLIMGRID
2018Nov38.4°F43.1°F-4.7°NCLIMGRID
2018Dec37.4°F32.7°F+4.7°NCLIMGRID
2019Jan30.0°F26.6°F+3.3°NCLIMGRID
2019Feb35.9°F30.5°F+5.4°NCLIMGRID
2019Mar39.6°F41.9°F-2.4°NCLIMGRID
2019Apr54.5°F52.5°F+2.0°NCLIMGRID
2019May64.8°F62.3°F+2.5°NCLIMGRID
2019Jun70.1°F71.2°F-1.1°NCLIMGRID
2019Jul76.4°F74.9°F+1.6°NCLIMGRID
2019Aug73.3°F72.7°F+0.6°NCLIMGRID
2019Sep72.2°F66.2°F+6.0°NCLIMGRID
2019Oct57.6°F54.0°F+3.6°NCLIMGRID
2019Nov38.0°F43.1°F-5.1°NCLIMGRID
2019Dec38.3°F32.7°F+5.6°NCLIMGRID
2020Jan36.4°F26.6°F+9.8°NCLIMGRID
2020Feb35.3°F30.5°F+4.8°NCLIMGRID
2020Mar47.4°F41.9°F+5.5°NCLIMGRID
2020Apr50.5°F52.5°F-2.0°NCLIMGRID
2020May60.5°F62.3°F-1.8°NCLIMGRID
2020Jun72.2°F71.2°F+1.1°NCLIMGRID
2020Jul76.6°F74.9°F+1.8°NCLIMGRID
2020Aug72.2°F72.7°F-0.5°NCLIMGRID
2020Sep65.8°F66.2°F-0.4°NCLIMGRID
2020Oct54.5°F54.0°F+0.5°NCLIMGRID
2020Nov47.8°F43.1°F+4.7°NCLIMGRID
2020Dec34.7°F32.7°F+2.0°NCLIMGRID
2021Jan32.1°F26.6°F+5.5°NCLIMGRID
2021Feb26.9°F30.5°F-3.7°NCLIMGRID
2021Mar47.3°F41.9°F+5.4°NCLIMGRID
2021Apr53.1°F52.5°F+0.6°NCLIMGRID
2021May60.7°F62.3°F-1.6°NCLIMGRID
2021Jun72.9°F71.2°F+1.8°NCLIMGRID
2021Jul74.2°F74.9°F-0.6°NCLIMGRID
2021Aug75.9°F72.7°F+3.2°NCLIMGRID
2021Sep68.8°F66.2°F+2.6°NCLIMGRID
2021Oct61.5°F54.0°F+7.5°NCLIMGRID
2021Nov40.8°F43.1°F-2.3°NCLIMGRID
2021Dec42.7°F32.7°F+10.0°NCLIMGRID
2022Jan27.4°F26.6°F+0.8°NCLIMGRID
2022Feb33.1°F30.5°F+2.5°NCLIMGRID
2022Mar46.1°F41.9°F+4.2°NCLIMGRID
2022Apr51.6°F52.5°F-0.9°NCLIMGRID
2022May66.4°F62.3°F+4.1°NCLIMGRID
2022Jun72.9°F71.2°F+1.7°NCLIMGRID
2022Jul76.8°F74.9°F+1.9°NCLIMGRID
2022Aug74.1°F72.7°F+1.4°NCLIMGRID
2022Sep67.3°F66.2°F+1.0°NCLIMGRID
2022Oct54.2°F54.0°F+0.2°NCLIMGRID
2022Nov44.9°F43.1°F+1.8°NCLIMGRID
2022Dec33.8°F32.7°F+1.1°NCLIMGRID
2023Jan38.8°F26.6°F+12.1°NCLIMGRID
2023Feb41.0°F30.5°F+10.4°NCLIMGRID
2023Mar43.5°F41.9°F+1.5°NCLIMGRID
2023Apr54.5°F52.5°F+2.0°NCLIMGRID
2023May62.8°F62.3°F+0.5°NCLIMGRID
2023Jun70.4°F71.2°F-0.7°NCLIMGRID
2023Jul75.0°F74.9°F+0.2°NCLIMGRID
2023Aug72.9°F72.7°F+0.2°NCLIMGRID
2023Sep68.5°F66.2°F+2.3°NCLIMGRID
2023Oct57.9°F54.0°F+3.9°NCLIMGRID
2023Nov45.0°F43.1°F+1.9°NCLIMGRID
2023Dec41.1°F32.7°F+8.4°NCLIMGRID
2024Jan29.9°F26.6°F+3.3°NCLIMGRID
2024Feb41.6°F30.5°F+11.0°NCLIMGRID
2024Mar47.8°F41.9°F+5.8°NCLIMGRID
2024Apr57.0°F52.5°F+4.5°NCLIMGRID
2024May67.8°F62.3°F+5.5°NCLIMGRID
2024Jun73.2°F71.2°F+2.0°NCLIMGRID
2024Jul74.3°F74.9°F-0.6°NCLIMGRID
2024Aug74.1°F72.7°F+1.4°NCLIMGRID
2024Sep69.2°F66.2°F+3.0°NCLIMGRID
2024Oct58.6°F54.0°F+4.6°NCLIMGRID
2024Nov48.8°F43.1°F+5.8°NCLIMGRID
2024Dec36.6°F32.7°F+3.9°NCLIMGRID
2025Jan24.3°F26.6°F-2.3°NCLIMGRID
2025Feb33.3°F30.5°F+2.8°NCLIMGRID
2025Mar48.4°F41.9°F+6.5°NCLIMGRID
2025Apr54.8°F52.5°F+2.3°NCLIMGRID
2025May61.6°F62.3°F-0.6°NCLIMGRID
2025Jun73.5°F71.2°F+2.4°NCLIMGRID
2025Jul78.4°F74.9°F+3.5°NCLIMGRID
2025Aug72.7°F72.7°F+0.0°NCLIMGRID
2025Sep68.6°F66.2°F+2.3°NCLIMGRID
2025Oct58.4°F54.0°F+4.4°NCLIMGRID
2025Nov42.8°F43.1°F-0.3°NCLIMGRID
2025Dec32.3°F32.7°F-0.4°NCLIMGRID
2026Jan25.7°F26.6°F-0.9°NCLIMGRID
2026Feb32.7°F30.5°F+2.2°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
January26.6°F26/26
February30.5°F26/26
March41.9°F26/26
April52.5°F26/26
May62.3°F26/26
June71.2°F26/26
July74.9°F26/26
August72.7°F26/26
September66.2°F26/26
October54.0°F26/26
November43.1°F26/26
December32.7°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 Hartsville, Indiana getting warmer?

Based on 96+ years of NOAA temperature records, Hartsville has changed at a rate of approximately 0.09°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 Hartsville?

The warmest year on record in Hartsville was 2024, based on average annual temperature anomaly from NOAA station data.

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

How are the climate visualizations for Hartsville created?

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

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

Wear Hartsville's Climate Story

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Shop Hartsville Climate Apparel →

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