Schuyler County Climate
Schuyler County, Illinois
Avg Annual Temp
51.7°F
Annual Precip
40.9"
Annual Snowfall
—
Extreme Heat Days
21.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Schuyler County Weather
Cooler Than the National Median
Schuyler County reports an annual average temperature of 51.7°F, falling about a degree below the national median. This reflects a slightly cooler temperate climate typical of the upper Midwest.
Below the State Temperature Average
The county sits below the Illinois average of 52.8°F with its 51.7°F annual mean. It ranks among the cooler counties in the western portion of the state.
Mildness Compared to Southern Neighbors
Schuyler is cooler than neighboring Scott County, which averages 52.9°F. Its 40.9 inches of annual precipitation is slightly lower than the state average of 41.7 inches.
A Shorter Heat Season
The area experiences 21 days of extreme heat annually, which is less than many central Illinois peers. While specific snowfall data is unavailable, winter temperatures average a cold 28.4°F.
Equip for Chillier Winters
Outdoor planning should account for the winter average of 28.4°F and potential frost. Reliable heating systems are a priority given the county's position below the state average temperature.
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.