US Geography / US Weather / Illinois Weather / Jerseyville |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Avg. High | 35 | 40 | 52 | 64 | 74 | 84 | 87 | 85 | 78 | 67 | 54 | 38 |
Avg. Low | 15 | 18 | 31 | 42 | 51 | 60 | 64 | 61 | 54 | 44 | 34 | 21 |
Mean | 26 | 30 | 42 | 54 | 64 | 72 | 76 | 74 | 67 | 55 | 44 | 31 |
Avg. Precip. | 1.6 in | 1.8 in | 3.4 in | 3.8 in | 3.9 in | 3.6 in | 3.8 in | 3.6 in | 3.6 in | 2.8 in | 3.3 in | 2.8 in |
Degrees in Fahrenheit
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