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Weather & Climate
Kewanee, Illinois, United States
Overview
Climate data and monthly weather averages for Kewanee.
Key Metrics
Annual Avg
10.5°C
Summer Avg
23.2°C
Winter Avg
-3.3°C
Record High
42.7°C
Record Low
-35.1°C
Annual Precipitation
949.6 mm
Avg Humidity
77%
Summer Humidity
74%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.8° | -4.8° | -35.1° | 44.9 | 85% | 56 | 58 |
| Feb | 20.1° | -3.1° | -25.7° | 47.6 | 82% | 77 | 62 |
| Mar | 26.2° | 3.8° | -22.3° | 64.2 | 78% | 115 | 64.4 |
| Apr | 28.9° | 10.7° | -7.5° | 98.4 | 74% | 143 | 60.3 |
| May | 33.8° | 16.6° | -1.3° | 120.3 | 76% | 171 | 57.7 |
| Jun | 40.5° | 22° | 5.5° | 112.8 | 76% | 186 | 50.7 |
| Jul | 42.7° | 24.2° | 9.2° | 89.9 | 74% | 195 | 39.8 |
| Aug | 40.4° | 23.3° | 7.4° | 92.7 | 71% | 170 | 35.2 |
| Sep | 37.9° | 19.2° | 1.7° | 87.6 | 71% | 136 | 44.6 |
| Oct | 32.4° | 11.4° | -7.8° | 77.8 | 73% | 94 | 54.6 |
| Nov | 24.1° | 4.4° | -14.3° | 58.2 | 78% | 61 | 58 |
| Dec | 21.3° | -2° | -23.3° | 55.2 | 85% | 47 | 71.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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