Illinois · county areal climate 1951–2025
Marion County, IL
A 45.2" / 55.3°F normal · 2025 ran 98% of normal precipitation.
2026 so far · through Jul 25: This area is at
96% (26.81") of the 1996–2025 to-date normal — the
50th driest start of 76 years. Temperature
+2.4°F vs normal.
U.S. year-to-date → Normal (1996–2025)
45.2in
annual precipitation · 55.3°F
2025 vs Normal
98%
44.5" · 56.3°F (+1 vs normal)
Biggest Rain Day
4.62in
Apr 5 · 2025
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.