Illinois · county areal climate 1951–2025
Madison County, IL
A 55.9°F / 42.3" normal · 2025 ran +0.6°F vs normal.
2026 so far · through Jul 9: This area is running
+1.9°F (54.5°F) vs the 1996–2025 to-date normal — the
6th warmest start of 76 years. Precipitation
98% of normal.
U.S. year-to-date → Normal (1996–2025)
55.9°F
annual mean · 42.3" precipitation
2025 vs Normal
+0.6°F
56.5°F · 37.1" (88% of normal)
Warmest Year
58.8°F
2012 · coldest 52.3°F (1979)
Wettest Year
57.0in
2008 · driest 25.2" (1953)
Hottest Day
108.7°F
Jul 14 · 1954
Coldest Day
-16.2°F
Dec 22 · 1989
Biggest Rain Day
4.29in
Dec 27 · 2015
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.