US Geography / US Weather / Illinois Weather / Sheffield |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 28 | 34 | 45 | 60 | 71 | 81 | 84 | 82 | 75 | 64 | 48 | 34 |
| Avg. Low | 10 | 14 | 27 | 38 | 48 | 58 | 64 | 60 | 52 | 41 | 28 | 17 |
| Mean | 18 | 24 | 37 | 50 | 61 | 70 | 74 | 72 | 64 | 52 | 38 | 25 |
| Avg. Precip. | 1.5 in | 1.0 in | 2.5 in | 3.7 in | 3.6 in | 4.3 in | 4.3 in | 3.7 in | 3.7 in | 2.8 in | 2.5 in | 2.3 in |
Degrees in Fahrenheit
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