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Hanover, WI Climate
1991 to 2020 normals at Afton - Janesville Wwtp, 5.5 mi from the center of Hanover, elevation 762 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 28° | 12° | 1.63 in | 10.8 in | |
| February | 32° | 15° | 1.61 in | 10.1 in | |
| March | 45° | 25° | 2.06 in | 4.1 in | |
| April | 58° | 36° | 3.57 in | 1.3 in | |
| May | 70° | 48° | 4.09 in | 0.0 in | |
| June | 80° | 58° | 4.99 in | 0.0 in | |
| July | 83° | 62° | 4.19 in | 0.0 in | |
| August | 82° | 60° | 4.34 in | 0.0 in | |
| September | 75° | 51° | 3.73 in | 0.0 in | |
| October | 62° | 40° | 2.99 in | 0.2 in | |
| November | 46° | 29° | 2.33 in | 2.4 in | |
| December | 34° | 18° | 1.90 in | 7.7 in | |
| Year | 58° | 37.43 in | 36.6 in |
Frequently asked questions
- What is the hottest month in Hanover, WI?
- July is the warmest month, with a normal high of 83°F at Afton - Janesville Wwtp.
- What is the coldest month in Hanover, WI?
- January is the coldest month, with a normal low of 12°F.
- What is the wettest month in Hanover, WI?
- June has the most precipitation on average, about 4.99 inches.