Edwards County Climate
Edwards County, Illinois
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
56.4°F
Annual Precip
50.0"
Annual Snowfall
11.8"
Extreme Heat Days
45
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
4,300
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Edwards County
Climate Verdict
Edwards County has a mild, with an average annual temperature of 56.4°F, moderately wet with 50.0 inches of annual precipitation, occasional hot days — 44.8 per year above 90°F, light snow averaging 11.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.9°F. summers are warm — July averages 78.4°F. The 46°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Edwards County is 3.6°F warmer than the Illinois statewide average of 52.8°F, it is also noticeably wetter, receiving 8.2 inches more precipitation than the state average, the county experiences 17.5389678030303 more extreme heat days than the state average.
Climate Profile
About Edwards County Weather
Warmer and Much Wetter than Average
Edwards County averages 56.4°F annually, which is warmer than the national median. It receives a significant 50.0 inches of precipitation, making it one of the wettest spots in the region.
One of the State's Warmest Spots
The county's 56.4°F average temperature far exceeds the Illinois state average of 52.8°F. It also receives about 8 more inches of precipitation than the state norm of 41.7 inches.
Southern Illinois Heat and Moisture
Edwards County aligns with the southern Illinois climate, which is notably warmer and wetter than the central plains. It sees less than half the snow of northern counties like DuPage.
Intense Summers and Mild Winters
Summer is grueling with 45 days of extreme heat over 90°F and an average temperature of 76.8°F. Winter is mild by Illinois standards, with only 11.8 inches of annual snow.
Prioritize Cooling and Flood Safety
High-performance air conditioning is vital for the 45 days of extreme heat. Residents must also prepare for heavy rain, as 50.0 inches of annual precipitation can lead to local flooding.
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.