May weather in Cedarburg, WI
The average temperature in Cedarburg in May is 55.9°F (46.2°F–65.7°F). Average precipitation: 3.99 inches.
May is a spring month in Cedarburg, and is warmer than the annual average of 47.8°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Daylight averages about 14h 30m. For travel, May is a comfortable month to visit.
Avg High
65.7°F
Avg Low
46.2°F
Precipitation
3.99 in
Daylight
14h 30m
May records in Cedarburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2013) | 35.1°F (2023) | 1.49 in (2022) |
| May 2 | 87.1°F (2013) | 35.1°F (2023) | 0.56 in (2025) |
| May 3 | 86.0°F (2021) | 34.0°F (2017) | 0.84 in (2013) |
| May 4 | 80.1°F (2015) | 35.1°F (2022) | 1.52 in (2021) |
| May 5 | 79.0°F (2010) | 36.0°F (2011) | 0.45 in (2024) |
| May 6 | 79.0°F (2018) | 37.9°F (2020) | 0.20 in (2018) |
| May 7 | 84.9°F (2016) | 37.9°F (2021) | 0.81 in (2012) |
| May 8 | 79.0°F (2015) | 33.1°F (2017) | 1.92 in (2024) |
| May 9 | 82.0°F (2018) | 30.0°F (2020) | 1.00 in (2009) |
| May 10 | 79.0°F (2015) | 32.0°F (2020) | 1.23 in (2013) |
| May 11 | 79.0°F (2015) | 36.0°F (2021) | 1.24 in (2016) |
| May 12 | 82.0°F (2022) | 34.0°F (2021) | 0.64 in (2018) |
| May 13 | 84.9°F (2022) | 30.9°F (2013) | 1.26 in (2014) |
| May 14 | 84.9°F (2022) | 39.0°F (2015) | 1.27 in (2009) |
| May 15 | 84.0°F (2022) | 35.1°F (2016) | 0.37 in (2011) |
| May 16 | 84.9°F (2012) | 36.0°F (2014) | 0.73 in (2017) |
| May 17 | 86.0°F (2017) | 39.0°F (2009) | 0.43 in (2020) |
| May 18 | 82.0°F (2017) | 37.9°F (2023) | 5.25 in (2020) |
| May 19 | 82.9°F (2009) | 39.0°F (2023) | 0.97 in (2020) |
| May 20 | 82.9°F (2009) | 37.0°F (2015) | 0.18 in (2024) |
| May 21 | 87.1°F (2012) | 41.0°F (2015) | 1.67 in (2025) |
| May 22 | 84.9°F (2009) | 41.0°F (2014) | 0.82 in (2025) |
| May 23 | 86.0°F (2021) | 39.0°F (2025) | 0.84 in (2013) |
| May 24 | 82.0°F (2010) | 37.0°F (2013) | 0.88 in (2017) |
| May 25 | 84.9°F (2010) | 28.9°F (2014) | 1.24 in (2024) |
| May 26 | 88.0°F (2018) | 39.0°F (2013) | 2.06 in (2022) |
| May 27 | 87.1°F (2018) | 39.0°F (2011) | 1.02 in (2022) |
| May 28 | 95.0°F (2018) | 41.0°F (2021) | 1.25 in (2014) |
| May 29 | 86.0°F (2018) | 39.0°F (2021) | 0.78 in (2017) |
| May 30 | 82.9°F (2018) | 39.0°F (2021) | 0.82 in (2015) |
| May 31 | 88.0°F (2010) | 25.0°F (2014) | 0.40 in (2013) |