Kane County Climate
Kane County, Illinois
Avg Annual Temp
49.5°F
Annual Precip
37.8"
Annual Snowfall
32.8"
Extreme Heat Days
15.833333333333334
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Kane County Weather
Cooler and drier than median
Kane County's average annual temperature of 49.5°F falls below the national median. The area experiences moderate precipitation at 37.8 inches per year, which is lower than many coastal or southern regions.
Below the Illinois state average
The county's 49.5°F average temperature is cooler than the 52.8°F state average. Its annual precipitation of 37.8 inches is also nearly four inches below the state norm of 41.7 inches.
Comparable to its northern neighbors
Kane is slightly warmer than Lake County, which averages 48.4°F. However, it sees less snowfall than Lake, recording 32.8 inches compared to Lake's 43.3 inches.
Defining Midwestern seasonal swings
Kane experiences 16 days of extreme heat over 90°F during the July peak of 73.7°F. Winter temperatures drop to an average of 25.8°F, bringing a substantial 32.8 inches of annual snow.
Plan for variable winter conditions
Residents need to prepare for over 32 inches of snow while maintaining HVAC systems for 16 extreme heat days. Outdoor planning should account for a drier overall climate compared to the rest of the state.
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.