Monroe County Climate
Monroe County, Illinois
Climate data coming soon
Avg Annual Temp
—
Annual Precip
45.1"
Annual Snowfall
8.8"
Extreme Heat Days
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Monthly Temperature
Temperature data coming soon
Precipitation Calendar
Seasonal Overview
Seasonal data coming soon
National Comparison
Data pending
Data pending
Climate Profile
About Monroe County Weather
A Damp and Temperate Climate Profile
While specific annual temperature averages are limited for Monroe, its 45.1 inches of rain exceeds the national median. This reflects a humid continental climate common in the Mississippi River valley.
Wetter Conditions Than the State Average
Monroe receives 45.1 inches of annual precipitation, which is higher than the Illinois average of 41.7 inches. This extra moisture defines the local environment compared to drier northern counties.
Less Snow Than Northern Neighbors
With only 8.8 inches of annual snowfall, Monroe experiences a much milder winter than counties in central and northern Illinois. It remains one of the drier spots in the state for snow accumulation.
Rainy Springs and Mild Winters
The county averages 45.1 inches of precipitation annually, distributed mostly as rain rather than snow. Residents enjoy a light winter snow load of 8.8 inches compared to the state's heavier northern tallies.
Focus on Moisture Management
Homeowners should prioritize gutter maintenance and basement waterproofing to handle the high annual rainfall of 45.1 inches. Reliable drainage is more critical here than heavy snow removal gear.
Frequently Asked Questions
How much rain does Monroe County get?
Does it snow in Monroe County?
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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.