US Geography / US Weather / Illinois Weather / Marshall |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34 | 38 | 51 | 64 | 75 | 84 | 87 | 84 | 78 | 66 | 52 | 38 |
| Avg. Low | 17 | 21 | 32 | 42 | 52 | 61 | 65 | 64 | 56 | 45 | 34 | 24 |
| Mean | 26 | 30 | 42 | 54 | 64 | 74 | 76 | 74 | 68 | 56 | 44 | 31 |
| Avg. Precip. | 2.1 in | 2.1 in | 3.5 in | 3.9 in | 4.3 in | 3.8 in | 4.8 in | 3.8 in | 3.1 in | 2.6 in | 3.4 in | 3.6 in |
Degrees in Fahrenheit
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