Calhoun County Climate
Calhoun County, Illinois
Avg Annual Temp
53.4°F
Annual Precip
42.2"
Annual Snowfall
12.5"
Extreme Heat Days
28.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
DryWet❄= snowfall
❄2.5"
❄2.3"
❄3.2"
4.5"
5.3"
4.1"
3.6"
3.7"
3.4"
3.3"
❄3.7"
❄2.6"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Seasonal Overview
National Comparison
Warmer than 46% of US counties
Wetter than 51% of US counties
More seasonal variation than 75% of US counties
Frequently Asked Questions
What is the average temperature in Calhoun County?
The average annual temperature in Calhoun County, IL is 53.4°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Calhoun County get?
Calhoun County receives an average of 42.2 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Calhoun County?
Yes, Calhoun County receives an average of 12.5 inches of snowfall per year according to NOAA climate normals.
How hot does Calhoun County get in summer?
The average summer temperature (June-August) in Calhoun County is 74.4°F. The county experiences an average of 28.9 days per year above 90°F.
How cold are winters in Calhoun County?
The average winter temperature (December-February) in Calhoun County is 30.9°F. January, typically the coldest month, averages 27.8°F.
Track your own weather in Calhoun County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.