|
Typical Janesville January Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 28.1 °F | |
| Average daily low | 11.5 °F | |
| Average monthly precipitation | 1.7 inches | |
| Average monthly snow | 11.9 inches | |
| Daily chance of precipitation | 32.6% | |
| Daily chance of snow | 21.3% | |
|
Janesville January Weather Records 1893–2024 |
||
|---|---|---|
| Highest temperature | 60 °F | January 7, 2008 |
| Lowest temperature | -30 °F | January 31, 2019 |
| Highest daily low | 47 °F | January 18, 1973 |
| Lowest daily high | -15 °F | January 19, 1994 |
| Hottest average high temperature | 39.3 °F | 2006 |
| Coldest average high temperature | 16.5 °F | 1977 |
| Most daily precipitation | 1.8 inches | January 5, 2004 |
| Most monthly precipitation | 4.1 inches | 2005 |
| Most daily snow | 11.0 inches | January 13, 1979 |
| Most monthly snow | 31.3 inches | 1979 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| January 1 | 30.4 | 14.2 | 51 | -17 |
| January 2 | 30.2 | 14.1 | 48 | -19 |
| January 3 | 30.1 | 13.9 | 56 | -15 |
| January 4 | 29.9 | 13.6 | 54 | -15 |
| January 5 | 29.7 | 13.3 | 59 | -23 |
| January 6 | 29.5 | 12.9 | 56 | -23 |
| January 7 | 29.3 | 12.5 | 60 | -23 |
| January 8 | 29.1 | 12.4 | 52 | -23 |
| January 9 | 29.1 | 12.4 | 55 | -19 |
| January 10 | 29.0 | 12.3 | 54 | -25 |
| January 11 | 28.8 | 12.1 | 54 | -23 |
| January 12 | 28.7 | 11.9 | 54 | -18 |
| January 13 | 28.5 | 11.7 | 54 | -13 |
| January 14 | 28.4 | 11.6 | 46 | -15 |
| January 15 | 28.3 | 11.4 | 55 | -24 |
| January 16 | 28.2 | 11.3 | 52 | -24 |
| January 17 | 28.2 | 11.3 | 56 | -26 |
| January 18 | 28.1 | 11.2 | 55 | -26 |
| January 19 | 28.1 | 11.1 | 57 | -28 |
| January 20 | 28.0 | 11.1 | 51 | -27 |
| January 21 | 28.1 | 11.2 | 51 | -26 |
| January 22 | 28.1 | 11.1 | 55 | -14 |
| January 23 | 28.2 | 11.1 | 53 | -24 |
| January 24 | 28.3 | 11.2 | 60 | -18 |
| January 25 | 28.3 | 11.3 | 60 | -15 |
| January 26 | 28.2 | 11.2 | 52 | -19 |
| January 27 | 28.2 | 11.1 | 52 | -20 |
| January 28 | 28.2 | 11.0 | 58 | -23 |
| January 29 | 28.3 | 11.0 | 54 | -20 |
| January 30 | 28.4 | 10.9 | 58 | -28 |
| January 31 | 28.5 | 11.0 | 59 | -30 |