April weather in Merton, WI
The average temperature in Merton in April is 44.7°F (33.8°F–55.6°F). Average precipitation: 3.85 inches.
April is a spring month in Merton, and is cooler than the annual average of 46.5°F. Daily temperatures swing about 21.8°F between overnight low and afternoon high. Daylight averages about 13h 12m. For travel, April is cool.
Avg High
55.6°F
Avg Low
33.8°F
Precipitation
3.85 in
Daylight
13h 12m
April records in Merton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 64.0°F (2026) | 15.1°F (2018) | 0.59 in (2023) |
| April 2 | 70.0°F (2015) | 14.0°F (2018) | 0.37 in (2024) |
| April 3 | 68.0°F (2015) | 15.1°F (2018) | 1.67 in (2024) |
| April 4 | 72.0°F (2021) | 19.9°F (2013) | 1.46 in (2011) |
| April 5 | 77.0°F (2021) | 12.9°F (2018) | 0.21 in (2023) |
| April 6 | 77.0°F (2021) | 12.9°F (2018) | 0.66 in (2022) |
| April 7 | 82.0°F (2021) | 12.0°F (2018) | 0.97 in (2010) |
| April 8 | 82.0°F (2021) | 12.9°F (2018) | 1.28 in (2015) |
| April 9 | 75.0°F (2019) | 15.1°F (2025) | 1.40 in (2015) |
| April 10 | 73.0°F (2017) | 17.1°F (2016) | 1.71 in (2013) |
| April 11 | 82.0°F (2011) | 25.0°F (2018) | 0.92 in (2021) |
| April 12 | 77.0°F (2023) | 26.1°F (2016) | 0.40 in (2013) |
| April 13 | 82.9°F (2023) | 26.1°F (2016) | 1.16 in (2026) |
| April 14 | 82.9°F (2023) | 24.1°F (2020) | 2.00 in (2014) |
| April 15 | 84.0°F (2023) | 18.0°F (2014) | 1.96 in (2026) |
| April 16 | 84.0°F (2023) | 18.0°F (2014) | 1.60 in (2026) |
| April 17 | 75.9°F (2016) | 21.9°F (2018) | 0.50 in (2024) |
| April 18 | 80.1°F (2026) | 23.0°F (2018) | 1.20 in (2013) |
| April 19 | 80.1°F (2016) | 25.0°F (2018) | 1.02 in (2025) |
| April 20 | 69.1°F (2015) | 23.0°F (2013) | 0.91 in (2012) |
| April 21 | 75.9°F (2014) | 24.1°F (2013) | 0.37 in (2022) |
| April 22 | 77.0°F (2019) | 23.0°F (2021) | 0.33 in (2014) |
| April 23 | 77.0°F (2019) | 23.0°F (2021) | 1.11 in (2019) |
| April 24 | 81.0°F (2022) | 27.0°F (2023) | 1.04 in (2010) |
| April 25 | 73.0°F (2018) | 27.0°F (2024) | 1.69 in (2010) |
| April 26 | 77.0°F (2016) | 28.9°F (2024) | 0.92 in (2011) |
| April 27 | 72.0°F (2013) | 27.0°F (2022) | 0.72 in (2017) |
| April 28 | 79.0°F (2024) | 28.0°F (2022) | 0.26 in (2020) |
| April 29 | 81.0°F (2025) | 24.1°F (2018) | 1.01 in (2014) |
| April 30 | 73.0°F (2013) | 24.1°F (2018) | 1.01 in (2020) |