March weather in Janesville, WI
The average temperature in Janesville in March is 35.0°F (25.4°F–44.6°F). Average precipitation: 2.06 inches. Average snowfall is 4.1 inches.
March is a spring month in Janesville, and is cooler than the annual average of 47.8°F. Daily temperatures swing about 19.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 11h 42m. For travel, March is cold.
Avg High
44.6°F
Avg Low
25.4°F
Precipitation
2.06 in
Snow
4.1 in
March records in Janesville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 62.1°F (2000) | -11.9°F (2015) | 0.29 in (2007) |
| March 2 | 64.0°F (1992) | 1.0°F (2014) | 1.25 in (1991) |
| March 3 | 61.0°F (2024) | -7.1°F (2014) | 1.03 in (1989) |
| March 4 | 73.0°F (2024) | -11.0°F (2002) | 0.13 in (2014) |
| March 5 | 64.9°F (1992) | -9.9°F (2002) | 1.49 in (2004) |
| March 6 | 70.0°F (2000) | -6.0°F (2015) | 0.62 in (2022) |
| March 7 | 70.0°F (2000) | -2.0°F (1996) | 0.63 in (2026) |
| March 8 | 78.1°F (2000) | -2.9°F (1996) | 0.66 in (1990) |
| March 9 | 75.0°F (2000) | 0.0°F (1996) | 1.02 in (2009) |
| March 10 | 71.1°F (2026) | -5.1°F (2003) | 0.86 in (2020) |
| March 11 | 68.0°F (2025) | -2.0°F (2003) | 0.35 in (2013) |
| March 12 | 75.9°F (1990) | 6.1°F (1993) | 1.66 in (2010) |
| March 13 | 71.1°F (1990) | 7.0°F (2022) | 1.43 in (2006) |
| March 14 | 72.0°F (1995) | 1.9°F (1993) | 0.31 in (2016) |
| March 15 | 78.1°F (2012) | 3.9°F (1993) | 0.58 in (2024) |
| March 16 | 80.1°F (2012) | 7.0°F (1997) | 0.88 in (2016) |
| March 17 | 79.0°F (2012) | 5.0°F (2026) | 0.39 in (1989) |
| March 18 | 79.0°F (2012) | 5.0°F (2026) | 0.59 in (1998) |
| March 19 | 80.1°F (2012) | 10.0°F (2023) | 0.64 in (2022) |
| March 20 | 73.9°F (2012) | 9.0°F (2013) | 1.32 in (2020) |
| March 21 | 82.0°F (2012) | 9.0°F (2013) | 1.26 in (2011) |
| March 22 | 82.9°F (2012) | 9.0°F (2013) | 0.79 in (2007) |
| March 23 | 80.1°F (2012) | 10.0°F (1992) | 1.30 in (1993) |
| March 24 | 66.9°F (1988) | 10.0°F (2015) | 1.00 in (2021) |
| March 25 | 73.9°F (2017) | 10.9°F (2015) | 2.67 in (2009) |
| March 26 | 77.0°F (2007) | 10.0°F (1996) | 1.81 in (2024) |
| March 27 | 79.0°F (2007) | 10.0°F (1996) | 0.73 in (1991) |
| March 28 | 75.9°F (1998) | 14.0°F (2015) | 0.69 in (2014) |
| March 29 | 78.1°F (2025) | 15.1°F (2015) | 0.59 in (2009) |
| March 30 | 80.1°F (1998) | 19.0°F (1991) | 0.70 in (2024) |
| March 31 | 80.1°F (2026) | 21.0°F (2011) | 1.61 in (1998) |