April weather in Jefferson, WI
The average temperature in Jefferson in April is 45.9°F (35.5°F–56.3°F). Average precipitation: 4.02 inches.
April is a spring month in Jefferson, and is cooler than the annual average of 47.2°F. Daily temperatures swing about 20.8°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 13h 11m. For travel, April is cool.
Avg High
56.3°F
Avg Low
35.5°F
Precipitation
4.02 in
Daylight
13h 11m
April records in Jefferson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 77.0°F (2010) | 18.0°F (2018) | 1.24 in (2007) |
| April 2 | 82.0°F (2010) | 19.0°F (2018) | 0.63 in (2024) |
| April 3 | 78.1°F (2010) | 21.0°F (2018) | 1.79 in (2024) |
| April 4 | 73.0°F (2016) | 21.9°F (2018) | 0.76 in (2026) |
| April 5 | 75.0°F (2021) | 17.1°F (2018) | 0.26 in (2023) |
| April 6 | 75.9°F (2005) | 19.9°F (2018) | 1.31 in (2010) |
| April 7 | 80.1°F (2021) | 16.0°F (2018) | 1.10 in (2005) |
| April 8 | 77.0°F (2020) | 16.0°F (2018) | 0.87 in (2010) |
| April 9 | 73.0°F (2019) | 17.1°F (2018) | 1.14 in (2008) |
| April 10 | 73.9°F (2017) | 18.0°F (2016) | 1.68 in (2013) |
| April 11 | 82.0°F (2011) | 25.0°F (2007) | 1.61 in (2008) |
| April 12 | 77.0°F (2023) | 28.0°F (2018) | 0.55 in (2019) |
| April 13 | 82.0°F (2023) | 28.9°F (2009) | 0.84 in (2020) |
| April 14 | 81.0°F (2023) | 21.9°F (2020) | 2.28 in (2014) |
| April 15 | 84.0°F (2006) | 23.0°F (2014) | 0.92 in (2018) |
| April 16 | 82.0°F (2010) | 23.0°F (2020) | 1.51 in (2026) |
| April 17 | 77.0°F (2016) | 25.0°F (2018) | 0.46 in (2023) |
| April 18 | 80.1°F (2016) | 26.1°F (2018) | 1.74 in (2013) |
| April 19 | 82.9°F (2005) | 21.0°F (2018) | 0.62 in (2018) |
| April 20 | 82.0°F (2005) | 24.1°F (2018) | 1.10 in (2009) |
| April 21 | 78.1°F (2014) | 24.1°F (2018) | 0.48 in (2009) |
| April 22 | 79.0°F (2019) | 26.1°F (2021) | 0.25 in (2006) |
| April 23 | 84.0°F (2007) | 30.0°F (2015) | 1.24 in (2019) |
| April 24 | 80.1°F (2022) | 28.0°F (2015) | 1.05 in (2010) |
| April 25 | 84.9°F (2009) | 28.0°F (2017) | 1.45 in (2008) |
| April 26 | 75.0°F (2008) | 28.0°F (2023) | 1.78 in (2009) |
| April 27 | 77.0°F (2021) | 28.0°F (2023) | 0.96 in (2017) |
| April 28 | 82.0°F (2021) | 28.0°F (2023) | 0.93 in (2024) |
| April 29 | 82.9°F (2025) | 28.0°F (2018) | 0.83 in (2014) |
| April 30 | 84.9°F (2007) | 27.0°F (2018) | 0.48 in (2006) |