Menard County Climate
Menard County, Illinois
Avg Annual Temp
52.1°F
Annual Precip
37.5"
Annual Snowfall
16.8"
Extreme Heat Days
17.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Menard County Weather
Mild Temperatures and Lower Precipitation
Menard County averages 52.1°F annually, falling just under the national median for temperate zones. It is notably drier than many other parts of the country, with only 37.5 inches of rain.
Drier and Cooler Than State Norms
The county's 37.5 inches of annual rain is well below the Illinois average of 41.7 inches. Its annual temperature of 52.1°F also sits slightly below the state average of 52.8°F.
Surprisingly Few Extreme Heat Days
Despite its central location, Menard sees only 18 extreme heat days, far fewer than neighbor Mason's 31 days. Its 16.8 inches of snow is typical for the central Illinois plains.
Comfortable Summers and Crisp Winters
Summer averages stay around 73.3°F, with July hitting a peak of 75.0°F. Winter is cold but manageable, with a December-February average of 29.1°F.
Focus on Water Conservation and Winterize
With lower-than-average precipitation, consider drought-resistant landscaping for your property. Ensure your home is sealed against the 25.9°F January average to save on heating costs.
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.