Champaign County Climate
Champaign County, Ohio
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.2°F
Annual Precip
42.4"
Annual Snowfall
—
Extreme Heat Days
17
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,173
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Champaign County
Climate Verdict
Champaign County has a mild, with an average annual temperature of 51.2°F, moderately wet with 42.4 inches of annual precipitation, rare extreme heat with only 16.9 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 27.2°F. summers are warm — July averages 73.5°F. The 46°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Champaign County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Champaign County closely matches the Ohio statewide average temperature of 51.5°F.
Climate Profile
About Champaign County Weather
Balanced Midwestern Temperatures
Champaign County averages 51.2°F annually, sitting just below the national median for temperate zones. It represents a classic humid continental climate with four distinct seasons.
Slightly Cooler Than State Norms
At 51.2°F, the county is slightly cooler than the Ohio state average of 51.5°F. However, its 42.4 inches of annual precipitation makes it wetter than the state average of 41.2 inches.
Cooler Than Southern Neighbors
Champaign maintains a cooler profile than nearby Butler County, which averages 53.7°F. It closely mirrors Crawford County’s temperature but sees fewer extreme heat days than the counties to its immediate south.
Moderate Summers and Brisk Winters
July brings an average high of 73.5°F with only 17 days reaching the 90°F mark. Winters are chilly, with January temperatures averaging 27.2°F and winter season averages dropping to 29.7°F.
Rain Gear and Efficient Heating
With over 42 inches of rain, reliable drainage and rain gear are essential for local residents. While snowfall data is limited, the sub-freezing January average suggests keeping winter home heating systems in top shape.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.