Illinois · county areal climate 1951–2025
Piatt County, IL
A 52.8°F / 38.8" normal · 2025 ran +0.6°F vs normal.
2026 so far · through Jul 10: This area is running
+1.9°F (51.2°F) vs the 1996–2025 to-date normal — the
9th warmest start of 76 years. Precipitation
117% of normal.
U.S. year-to-date → Normal (1996–2025)
52.8°F
annual mean · 38.8" precipitation
2025 vs Normal
+0.6°F
53.4°F · 26.7" (69% of normal)
Warmest Year
55.6°F
2012 · coldest 49.3°F (1979)
Wettest Year
53.7in
1990 · driest 26.7" (2025)
Hottest Day
103.1°F
Jul 8 · 2012
Coldest Day
-23.2°F
Jan 20 · 1985
Biggest Rain Day
3.45in
Sep 17 · 1969
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.