April weather in Mason, WI
The average temperature in Mason in April is 39.5°F (28.5°F–50.6°F). Average precipitation: 2.26 inches.
April is a spring month in Mason, and is cooler than the annual average of 41.5°F. Daily temperatures swing about 22.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 20m. For travel, April is cool.
Avg High
50.6°F
Avg Low
28.5°F
Precipitation
2.26 in
Daylight
13h 20m
April records in Mason
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 68.0°F (2015) | 5.2°F (2018) | 0.08 in (2025) |
| April 2 | 80.1°F (2010) | 12.2°F (2018) | 0.29 in (2025) |
| April 3 | 68.0°F (2021) | 10.2°F (2013) | 0.54 in (2011) |
| April 4 | 75.0°F (2021) | 12.2°F (2018) | 0.43 in (1999) |
| April 5 | 66.0°F (2010) | 7.0°F (2003) | 0.82 in (1999) |
| April 6 | 61.0°F (2004) | 1.0°F (2003) | 0.90 in (2005) |
| April 7 | 66.0°F (2012) | 8.2°F (2023) | 1.04 in (2001) |
| April 8 | 73.9°F (2017) | 4.1°F (2018) | 0.18 in (2024) |
| April 9 | 73.9°F (2005) | 2.1°F (2007) | 0.24 in (2015) |
| April 10 | 71.1°F (2024) | 9.1°F (2007) | 1.97 in (2002) |
| April 11 | 77.0°F (2006) | 17.2°F (2009) | 0.86 in (2001) |
| April 12 | 77.0°F (2015) | 18.0°F (2004) | 0.10 in (2022) |
| April 13 | 71.1°F (2024) | 18.1°F (2008) | 0.46 in (2022) |
| April 14 | 87.1°F (2003) | 9.1°F (2013) | 0.15 in (2000) |
| April 15 | 77.0°F (2010) | 16.2°F (2020) | 0.32 in (2001) |
| April 16 | 88.0°F (2002) | 19.2°F (2025) | 0.63 in (2023) |
| April 17 | 82.0°F (2016) | 18.1°F (2012) | 0.68 in (2025) |
| April 18 | 82.9°F (2005) | 16.2°F (2023) | 1.86 in (2004) |
| April 19 | 75.0°F (2005) | 16.2°F (2013) | 0.72 in (2008) |
| April 20 | 73.0°F (2010) | 8.2°F (2013) | 1.72 in (2023) |
| April 21 | 69.1°F (2007) | 14.2°F (2013) | 0.85 in (2001) |
| April 22 | 81.0°F (2007) | 19.2°F (2010) | 1.87 in (2001) |
| April 23 | 73.9°F (2008) | 21.9°F (2003) | 1.03 in (2001) |
| April 24 | 72.0°F (2009) | 21.2°F (2024) | 1.08 in (2014) |
| April 25 | 73.0°F (1999) | 22.1°F (2024) | 0.41 in (2008) |
| April 26 | 75.0°F (2000) | 20.1°F (2022) | 1.04 in (2011) |
| April 27 | 75.9°F (2003) | 18.1°F (2022) | 0.34 in (2023) |
| April 28 | 82.9°F (2004) | 19.2°F (2010) | 0.81 in (2023) |
| April 29 | 82.9°F (2001) | 19.2°F (2018) | 0.55 in (2014) |
| April 30 | 82.0°F (2013) | 23.2°F (2025) | 0.54 in (2023) |