Additional rounds of thunderstorms are expected Thursday and Thursday night across Oklahoma and north Texas, with risks for both large hail and flash flooding. Strong winds may accompany any storms from east Texas northeast through the lower Great Lakes. Read More >
Central Illinois
Weather Forecast Office
Month | Average High (°F) |
Average Low (°F) |
Mean Temperature (°F) |
Heating Deg. Days |
Cooling Deg. Days |
Average Precip. (inches) |
Average Snow (inches) |
---|---|---|---|---|---|---|---|
January | 34.5 | 17.8 | 26.1 | 1204 | 0 | 2.17 | 5.7 |
February | 39.5 | 21.6 | 30.6 | 964 | 0 | 1.92 | 6.2 |
March | 51.7 | 31.1 | 41.4 | 734 | 2 | 2.70 | 1.8 |
April | 64.4 | 40.8 | 52.6 | 383 | 11 | 4.24 | 0.0 |
May | 74.8 | 52.4 | 63.6 | 132 | 88 | 4.37 | 0 |
June | 83.3 | 61.3 | 72.3 | 15 | 234 | 4.16 | 0 |
July | 85.5 | 64.5 | 75.0 | 2 | 311 | 5.06 | 0 |
August | 84.0 | 61.3 | 72.6 | 6 | 243 | 3.47 | 0 |
September | 79.2 | 53.4 | 66.3 | 78 | 117 | 3.30 | 0 |
October | 66.3 | 41.8 | 54.1 | 357 | 17 | 3.42 | 0.1 |
November | 51.4 | 32.0 | 41.7 | 700 | 0 | 2.88 | 0.6 |
December | 39.2 | 23.1 | 31.1 | 1049 | 0 | 2.29 | 4.9 |
Annual | 62.8 | 41.7 | 52.3 | 5624 | 1014 | 39.60 | 19.3 |
Period used for normals: 1991-2020
Average date of first measurable snow | November 30 |
Average date of last measurable snow | March 19 |
Average number of days with measurable snow | 16.6 |
Average number of days with at least 1" of snow | 6.0 |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Central Illinois
1362 State Route 10
Lincoln, IL 62656
217-732-7321 (forecast recording) or 217-732-3089
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