US Geography / US Weather / Wisconsin Weather / Fontana |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 27 | 32 | 44 | 58 | 71 | 81 | 85 | 82 | 74 | 62 | 46 | 32 |
| Avg. Low | 10 | 14 | 25 | 36 | 46 | 56 | 61 | 60 | 52 | 41 | 30 | 17 |
| Mean | 18 | 24 | 35 | 48 | 58 | 68 | 74 | 71 | 64 | 52 | 38 | 25 |
| Avg. Precip. | 1.8 in | 1.5 in | 2.8 in | 3.7 in | 3.3 in | 3.9 in | 4.3 in | 3.9 in | 4.1 in | 2.7 in | 2.7 in | 2.3 in |
Degrees in Fahrenheit
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