May weather in Norwalk, WI
The average temperature in Norwalk in May is 56.4°F (45.1°F–67.6°F). Average precipitation: 4.67 inches.
May is a spring month in Norwalk, and is warmer than the annual average of 45°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Daylight averages about 14h 33m. For travel, May is a comfortable month to visit.
Avg High
67.6°F
Avg Low
45.1°F
Precipitation
4.67 in
Daylight
14h 33m
May records in Norwalk
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (2018) | 34.0°F (2023) | 0.64 in (2017) |
| May 2 | 87.1°F (2021) | 30.9°F (2016) | 2.10 in (2018) |
| May 3 | 79.0°F (2021) | 28.0°F (2023) | 2.96 in (2021) |
| May 4 | 80.1°F (2015) | 28.9°F (2022) | 1.96 in (2018) |
| May 5 | 78.1°F (2023) | 30.9°F (2021) | 0.43 in (2024) |
| May 6 | 80.1°F (2018) | 34.0°F (2020) | 0.23 in (2019) |
| May 7 | 87.1°F (2016) | 32.0°F (2020) | 0.31 in (2024) |
| May 8 | 80.1°F (2018) | 28.0°F (2021) | 0.20 in (2015) |
| May 9 | 78.1°F (2018) | 23.0°F (2020) | 0.99 in (2018) |
| May 10 | 84.0°F (2022) | 30.9°F (2019) | 0.30 in (2016) |
| May 11 | 81.0°F (2022) | 26.1°F (2021) | 0.90 in (2018) |
| May 12 | 87.1°F (2022) | 25.0°F (2020) | 0.39 in (2018) |
| May 13 | 88.0°F (2022) | 30.9°F (2015) | 0.51 in (2023) |
| May 14 | 86.0°F (2022) | 34.0°F (2021) | 0.42 in (2016) |
| May 15 | 84.0°F (2022) | 28.0°F (2016) | 0.42 in (2023) |
| May 16 | 84.9°F (2025) | 30.0°F (2016) | 1.03 in (2024) |
| May 17 | 82.0°F (2017) | 35.1°F (2016) | 0.42 in (2019) |
| May 18 | 79.0°F (2024) | 34.0°F (2016) | 0.73 in (2017) |
| May 19 | 86.0°F (2024) | 37.0°F (2016) | 0.50 in (2019) |
| May 20 | 75.9°F (2018) | 36.0°F (2015) | 1.83 in (2022) |
| May 21 | 73.9°F (2016) | 37.0°F (2015) | 1.36 in (2025) |
| May 22 | 79.0°F (2016) | 36.0°F (2022) | 1.90 in (2024) |
| May 23 | 82.9°F (2016) | 32.0°F (2022) | 0.71 in (2017) |
| May 24 | 84.0°F (2016) | 34.0°F (2025) | 0.35 in (2019) |
| May 25 | 84.9°F (2018) | 37.0°F (2025) | 0.82 in (2015) |
| May 26 | 84.9°F (2018) | 37.9°F (2025) | 1.20 in (2022) |
| May 27 | 90.0°F (2018) | 37.0°F (2023) | 1.48 in (2024) |
| May 28 | 93.9°F (2018) | 36.0°F (2021) | 1.78 in (2020) |
| May 29 | 91.9°F (2018) | 28.0°F (2021) | 1.11 in (2020) |
| May 30 | 89.1°F (2018) | 37.0°F (2021) | 0.82 in (2015) |
| May 31 | 87.1°F (2022) | 37.0°F (2015) | 0.33 in (2018) |