Illinois · county areal climate 1951–2025
Lee County, IL
A 49.7°F / 37.8" normal · 2025 ran +1.1°F vs normal.
2026 so far · through Jul 10: This area is running
+2.5°F (48.3°F) vs the 1996–2025 to-date normal — the
6th warmest start of 76 years. Precipitation
103% of normal.
U.S. year-to-date → Normal (1996–2025)
49.7°F
annual mean · 37.8" precipitation
2025 vs Normal
+1.1°F
50.8°F · 33.9" (90% of normal)
Warmest Year
52.7°F
2024 · coldest 45.6°F (2014)
Wettest Year
52.3in
2019 · driest 23.9" (2005)
Hottest Day
101.0°F
Aug 17 · 1988
Coldest Day
-27.5°F
Jan 31 · 2019
Biggest Rain Day
4.28in
Oct 10 · 1954
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.