Wabash County Climate
Wabash County, Illinois
Avg Annual Temp
56.4°F
Annual Precip
48.7"
Annual Snowfall
8.9"
Extreme Heat Days
46.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Wabash County Weather
Warm and wet southern conditions
Wabash County's average temperature of 56.4°F is significantly warmer than the national median. It receives a high 48.7 inches of annual precipitation, making it one of the wetter regions in the interior U.S.
One of the warmest in Illinois
At 56.4°F, Wabash County is much warmer than the state average of 52.8°F. It consistently ranks among the top tier of Illinois counties for heat and total rainfall.
A hot spot in the region
Wabash experiences 46 days of extreme heat, outpacing nearby Vermilion's 21 days. Its 48.7 inches of rain also exceeds the precipitation levels of almost all its northern neighbors.
Hot summers and mild winters
July temperatures average a steamy 78.2°F with frequent heat waves. Winters remain mild with only 8.9 inches of snow, far below the totals seen in central or northern Illinois.
Focus on cooling and drainage
With 46 days over 90°F, high-capacity air conditioning is a necessity for residents. Excellent property drainage is also critical to handle the heavy 48.7 inches of annual rainfall.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.