US Geography / US Weather / Illinois Weather / Freeport |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 25 | 30 | 42 | 57 | 68 | 78 | 82 | 78 | 71 | 60 | 44 | 30 |
| Avg. Low | 7 | 12 | 25 | 36 | 47 | 57 | 61 | 58 | 51 | 40 | 28 | 14 |
| Mean | 17 | 21 | 34 | 47 | 58 | 68 | 72 | 70 | 62 | 50 | 36 | 22 |
| Avg. Precip. | 1.3 in | 1.3 in | 2.5 in | 3.4 in | 3.6 in | 4.1 in | 3.5 in | 4.3 in | 4.1 in | 2.8 in | 2.6 in | 1.8 in |
Degrees in Fahrenheit
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