Illinois · county areal climate 1951–2025
Carroll County, IL
A 49.4°F / 37.6" normal · 2025 ran +0.6°F vs normal.
2026 so far · through Jul 9: This area is running
+2°F (47.5°F) vs the 1996–2025 to-date normal — the
7th warmest start of 76 years. Precipitation
96% of normal.
U.S. year-to-date → Normal (1996–2025)
49.4°F
annual mean · 37.6" precipitation
2025 vs Normal
+0.6°F
50.0°F · 32.2" (86% of normal)
Warmest Year
52.2°F
1998 · coldest 44.9°F (1951)
Wettest Year
51.7in
2019 · driest 21.2" (1988)
Hottest Day
100.8°F
Aug 17 · 1988
Coldest Day
-30.5°F
Jan 31 · 2019
Biggest Rain Day
4.41in
Jul 22 · 2017
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.