Illinois Climate Information
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Monthly Averages
| January | February | March | April | May | June | July | August | September | October | November | December | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average Monthly high in °F: | 39° | 44° | 56° | 68° | 76° | 85° | 88° | 87° | 80° | 69° | 56° | 42° |
| Average Monthly low in °F: | 23° | 26° | 35° | 44° | 54° | 63° | 66° | 64° | 56° | 45° | 36° | 26° |
| Average Snow/Rain (Precip.) (in inches) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Days with precipitation: | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| Hours of sunshine: | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Yearly Averages
What's The Average High Temp in Illinois?
65.8 °F
What's the Average Low in Illinois?
44.8 °F
What's the Average Temperature in Illinois?
55.3 °F
How Many Inches of Rain per year does Illinois get ?
44.58 inches
How Many Rainy Days a year are there in Illinois?
N/A
How Much Sunshine each year is there in Illinois (in hours)?
N/A
How much, if any, snow falls each year in Illinois?
8 inches
| What's The Average High Temp in Illinois? | 65.8 °F |
| What's the Average Low in Illinois? | 44.8 °F |
| What's the Average Temperature in Illinois? | 55.3 °F |
| How Many Inches of Rain per year does Illinois get ? | 44.58 inches |
| How Many Rainy Days a year are there in Illinois? | N/A |
| How Much Sunshine each year is there in Illinois (in hours)? | N/A |
| How much, if any, snow falls each year in Illinois? | 8 inches |
N/A = This data was not available for this city. Usually this means the weather station did not supply, track, or have this particular information.
Illinois Temperature and Rain Graphs
Average high in °F
Average low in °F
Average precipitation in inches
