April weather in Waterloo, WI
The average temperature in Waterloo in April is 45.9°F (35.1°F–56.7°F). Average precipitation: 3.88 inches.
April is a spring month in Waterloo, and is cooler than the annual average of 46.7°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 12m. For travel, April is cool.
Avg High
56.7°F
Avg Low
35.1°F
Precipitation
3.88 in
Daylight
13h 12m
April records in Waterloo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 75.9°F (2010) | 17.1°F (2018) | 1.12 in (2007) |
| April 2 | 82.0°F (2010) | 18.0°F (2018) | 0.44 in (2024) |
| April 3 | 77.0°F (2010) | 19.9°F (2018) | 1.90 in (2024) |
| April 4 | 70.0°F (2016) | 21.0°F (2018) | 0.93 in (2017) |
| April 5 | 73.9°F (2021) | 16.0°F (2018) | 0.28 in (2023) |
| April 6 | 75.0°F (2021) | 19.9°F (2007) | 0.72 in (2010) |
| April 7 | 79.0°F (2021) | 15.1°F (2018) | 0.55 in (2010) |
| April 8 | 78.1°F (2021) | 15.1°F (2018) | 1.74 in (2015) |
| April 9 | 73.0°F (2019) | 18.0°F (2016) | 1.24 in (2015) |
| April 10 | 73.9°F (2017) | 17.1°F (2016) | 2.31 in (2013) |
| April 11 | 81.0°F (2011) | 26.1°F (2007) | 1.22 in (2008) |
| April 12 | 77.0°F (2023) | 26.1°F (2009) | 0.49 in (2019) |
| April 13 | 82.9°F (2023) | 30.0°F (2008) | 0.92 in (2020) |
| April 14 | 81.0°F (2023) | 25.0°F (2020) | 2.78 in (2014) |
| April 15 | 81.0°F (2010) | 19.9°F (2020) | 0.80 in (2018) |
| April 16 | 81.0°F (2010) | 21.9°F (2020) | 0.90 in (2017) |
| April 17 | 81.0°F (2010) | 21.9°F (2022) | 0.79 in (2024) |
| April 18 | 80.1°F (2016) | 27.0°F (2018) | 1.30 in (2013) |
| April 19 | 81.0°F (2016) | 24.1°F (2018) | 0.71 in (2018) |
| April 20 | 72.0°F (2015) | 24.1°F (2018) | 1.30 in (2009) |
| April 21 | 77.0°F (2014) | 26.1°F (2021) | 0.37 in (2009) |
| April 22 | 79.0°F (2019) | 24.1°F (2021) | 0.53 in (2014) |
| April 23 | 82.0°F (2007) | 26.1°F (2015) | 1.25 in (2019) |
| April 24 | 80.1°F (2022) | 14.0°F (2015) | 0.39 in (2010) |
| April 25 | 82.9°F (2009) | 21.9°F (2016) | 1.75 in (2008) |
| April 26 | 77.0°F (2016) | 27.0°F (2023) | 2.69 in (2009) |
| April 27 | 71.1°F (2021) | 27.0°F (2022) | 0.97 in (2017) |
| April 28 | 78.1°F (2021) | 15.1°F (2015) | 0.23 in (2020) |
| April 29 | 73.0°F (2007) | 26.1°F (2018) | 1.10 in (2014) |
| April 30 | 84.9°F (2007) | 14.0°F (2015) | 0.61 in (2020) |