May weather in Altoona, WI
The average temperature in Altoona in May is 59.0°F (48.6°F–69.3°F). Average precipitation: 4.12 inches. Average snowfall is 0.5 inches.
May is a spring month in Altoona, and is warmer than the annual average of 46°F. Daily temperatures swing about 20.7°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 38m. For travel, May is a comfortable month to visit.
Avg High
69.3°F
Avg Low
48.6°F
Precipitation
4.12 in
Snow
0.5 in
May records in Altoona
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (2021) | 33.1°F (2011) | 0.80 in (2017) |
| May 2 | 82.9°F (2012) | 32.0°F (2013) | 0.81 in (2024) |
| May 3 | 82.9°F (2015) | 32.0°F (2013) | 1.43 in (2008) |
| May 4 | 80.1°F (2025) | 28.9°F (2011) | 0.64 in (2013) |
| May 5 | 80.1°F (2018) | 35.1°F (2016) | 1.08 in (2023) |
| May 6 | 89.1°F (2016) | 39.0°F (2021) | 1.10 in (2012) |
| May 7 | 84.0°F (2018) | 37.0°F (2017) | 0.54 in (2010) |
| May 8 | 80.1°F (2013) | 28.9°F (2021) | 1.11 in (2019) |
| May 9 | 82.9°F (2025) | 28.9°F (2020) | 1.29 in (2006) |
| May 10 | 82.9°F (2022) | 37.0°F (2019) | 0.82 in (2004) |
| May 11 | 84.0°F (2025) | 30.0°F (2021) | 1.26 in (2003) |
| May 12 | 96.1°F (2022) | 28.9°F (2020) | 0.93 in (2014) |
| May 13 | 87.1°F (2025) | 32.0°F (2013) | 0.90 in (2005) |
| May 14 | 91.9°F (2013) | 35.1°F (2016) | 0.81 in (2004) |
| May 15 | 84.0°F (2025) | 28.9°F (2016) | 0.46 in (2025) |
| May 16 | 84.9°F (2018) | 34.0°F (2014) | 1.05 in (2017) |
| May 17 | 84.0°F (2024) | 37.0°F (2014) | 1.56 in (2020) |
| May 18 | 88.0°F (2012) | 36.0°F (2016) | 1.49 in (2000) |
| May 19 | 88.0°F (2012) | 35.1°F (2015) | 1.68 in (2014) |
| May 20 | 81.0°F (2020) | 33.1°F (2015) | 1.46 in (2001) |
| May 21 | 81.0°F (2016) | 41.0°F (2015) | 1.07 in (2013) |
| May 22 | 82.9°F (2016) | 37.9°F (2022) | 0.84 in (2011) |
| May 23 | 84.0°F (2016) | 36.0°F (2022) | 0.52 in (2011) |
| May 24 | 88.0°F (2018) | 36.0°F (2013) | 0.93 in (2012) |
| May 25 | 86.0°F (2018) | 41.0°F (2025) | 1.26 in (2016) |
| May 26 | 93.9°F (2018) | 43.0°F (2025) | 1.36 in (2008) |
| May 27 | 95.0°F (2018) | 39.9°F (2021) | 1.94 in (2019) |
| May 28 | 96.1°F (2018) | 39.0°F (2021) | 0.80 in (2009) |
| May 29 | 91.9°F (2018) | 36.0°F (2021) | 0.82 in (2013) |
| May 30 | 89.1°F (2023) | 48.0°F (2015) | 1.07 in (2018) |
| May 31 | 89.1°F (2023) | 39.0°F (2015) | 1.05 in (2004) |