Illinois · county areal climate 1951–2025
Greene County, IL
A 54.5°F / 40.0" normal · 2025 ran +0.9°F vs normal.
2026 so far · through Jul 10: This area is running
+2.4°F (53.6°F) vs the 1996–2025 to-date normal — the
4th warmest start of 76 years. Precipitation
91% of normal.
U.S. year-to-date → Normal (1996–2025)
54.5°F
annual mean · 40.0" precipitation
2025 vs Normal
+0.9°F
55.4°F · 28.8" (72% of normal)
Warmest Year
57.3°F
2012 · coldest 51.2°F (1979)
Wettest Year
57.0in
2015 · driest 23.6" (1953)
Hottest Day
109.6°F
Jul 14 · 1954
Coldest Day
-19.1°F
Jan 17 · 1977
Biggest Rain Day
4.23in
Dec 3 · 1982
Record
1951–2025
75 complete years · NOAA nClimGrid
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal
nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the
station records.