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Carterville, IL weather and climate

Williamson County, IL · population 5,822 · about 456 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Carterville's own coordinates.

The year at a glance

Sunny days
204
clear or partly cloudy, per year
Precipitation
44 in
per year
Wet days
117
rain or snow per year
Snowfall
11 in
per year
Hot days
38
above 90 °F
Freezing nights
100
at or below 32 °F
Humidity
68%
average relative
Average temperature
56 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 41 °FDaily high, Feb: 46 °FDaily high, Mar: 56 °FDaily high, Apr: 68 °FDaily high, May: 77 °FDaily high, Jun: 85 °FDaily high, Jul: 88 °FDaily high, Aug: 87 °FDaily high, Sep: 81 °FDaily high, Oct: 70 °FDaily high, Nov: 56 °FDaily high, Dec: 45 °FDaily low, Jan: 24 °FDaily low, Feb: 27 °FDaily low, Mar: 35 °FDaily low, Apr: 45 °FDaily low, May: 55 °FDaily low, Jun: 64 °FDaily low, Jul: 68 °FDaily low, Aug: 65 °FDaily low, Sep: 56 °FDaily low, Oct: 44 °FDaily low, Nov: 35 °FDaily low, Dec: 28 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high414656687785888781705645
Daily low242735455564686556443528

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovCarterville, Jan: 3.4 inCarterville, Feb: 3.1 inCarterville, Mar: 4.2 inCarterville, Apr: 5.0 inCarterville, May: 4.7 inCarterville, Jun: 3.6 inCarterville, Jul: 3.5 inCarterville, Aug: 2.8 inCarterville, Sep: 2.9 inCarterville, Oct: 3.5 inCarterville, Nov: 3.8 inCarterville, Dec: 3.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Carterville3.43.14.25.04.73.63.52.82.93.53.83.4

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovCarterville, Jan: 14 daysCarterville, Feb: 13 daysCarterville, Mar: 16 daysCarterville, Apr: 16 daysCarterville, May: 16 daysCarterville, Jun: 18 daysCarterville, Jul: 20 daysCarterville, Aug: 22 daysCarterville, Sep: 20 daysCarterville, Oct: 20 daysCarterville, Nov: 16 daysCarterville, Dec: 13 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Carterville141316161618202220201613

Compare Carterville with another city

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About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).