Illinois · county areal climate 1951–2025
Perry County, IL
A 56.4°F / 44.6" normal · 2025 ran +0.7°F vs normal.
2026 so far · through Jul 9: This area is running
+2.5°F (55.7°F) vs the 1996–2025 to-date normal — the
4th warmest start of 76 years. Precipitation
65% of normal.
U.S. year-to-date → Normal (1996–2025)
56.4°F
annual mean · 44.6" precipitation
2025 vs Normal
+0.7°F
57.1°F · 35.3" (79% of normal)
Warmest Year
59.0°F
2012 · coldest 52.8°F (1979)
Wettest Year
64.2in
2011 · driest 24.9" (1953)
Hottest Day
107.0°F
Jun 29 · 2012
Coldest Day
-17.7°F
Jan 17 · 1977
Biggest Rain Day
5.11in
Aug 17 · 1959
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.