April weather in South Milwaukee, WI
The average temperature in South Milwaukee in April is 45.0°F (37.3°F–52.8°F). Average precipitation: 4.08 inches.
April is a spring month in South Milwaukee, and is cooler than the annual average of 48.4°F. Daily temperatures swing about 15.5°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
52.8°F
Avg Low
37.3°F
Precipitation
4.08 in
Daylight
13h 11m
April records in South Milwaukee
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 63.0°F (2010) | 21.9°F (2018) | 0.72 in (2016) |
| April 2 | 77.0°F (2010) | 21.9°F (2018) | 0.70 in (2024) |
| April 3 | 80.1°F (2010) | 25.0°F (2013) | 2.80 in (2026) |
| April 4 | 71.1°F (2016) | 24.1°F (2018) | 1.20 in (2026) |
| April 5 | 72.0°F (2010) | 19.9°F (2018) | 1.06 in (2023) |
| April 6 | 72.0°F (2010) | 21.9°F (2007) | 0.78 in (2010) |
| April 7 | 79.0°F (2021) | 18.0°F (2018) | 1.09 in (2010) |
| April 8 | 79.0°F (2020) | 19.9°F (2018) | 0.59 in (2010) |
| April 9 | 69.1°F (2026) | 21.9°F (2016) | 1.07 in (2015) |
| April 10 | 73.0°F (2017) | 25.0°F (2016) | 2.40 in (2015) |
| April 11 | 84.0°F (2011) | 32.0°F (2012) | 2.00 in (2008) |
| April 12 | 79.0°F (2023) | 30.0°F (2016) | 0.52 in (2013) |
| April 13 | 82.9°F (2023) | 33.1°F (2008) | 0.74 in (2014) |
| April 14 | 82.9°F (2023) | 28.0°F (2020) | 1.43 in (2014) |
| April 15 | 81.0°F (2026) | 23.0°F (2014) | 0.96 in (2026) |
| April 16 | 82.0°F (2010) | 23.0°F (2014) | 1.94 in (2026) |
| April 17 | 75.0°F (2008) | 25.0°F (2020) | 0.38 in (2024) |
| April 18 | 73.9°F (2015) | 27.0°F (2018) | 2.22 in (2013) |
| April 19 | 72.0°F (2009) | 30.9°F (2018) | 0.70 in (2025) |
| April 20 | 59.0°F (2017) | 28.0°F (2013) | 1.25 in (2009) |
| April 21 | 75.9°F (2023) | 30.9°F (2013) | 0.32 in (2022) |
| April 22 | 72.0°F (2014) | 28.0°F (2021) | 0.13 in (2021) |
| April 23 | 73.9°F (2007) | 30.0°F (2015) | 1.20 in (2022) |
| April 24 | 75.9°F (2022) | 30.9°F (2015) | 0.49 in (2013) |
| April 25 | 84.0°F (2009) | 30.0°F (2024) | 0.92 in (2010) |
| April 26 | 80.1°F (2008) | 33.1°F (2018) | 1.84 in (2009) |
| April 27 | 73.9°F (2017) | 30.9°F (2022) | 0.71 in (2017) |
| April 28 | 80.1°F (2024) | 30.9°F (2019) | 0.80 in (2024) |
| April 29 | 79.0°F (2025) | 30.0°F (2018) | 1.60 in (2020) |
| April 30 | 84.0°F (2007) | 30.9°F (2008) | 1.92 in (2020) |