May weather in St. Donatus, IA
The average temperature in St. Donatus in May is 58.2°F (47.4°F–68.9°F). Average precipitation: 4.38 inches. Average snowfall is 0.3 inches.
May is a spring month in St. Donatus, and is warmer than the annual average of 47°F. Daily temperatures swing about 21.5°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 25m. For travel, May is a comfortable month to visit.
Avg High
68.9°F
Avg Low
47.4°F
Precipitation
4.38 in
Snow
0.3 in
May records in St. Donatus
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.9°F (2013) | 30.9°F (1897) | 1.90 in (1997) |
| May 2 | 82.9°F (1902) | 37.0°F (1897) | 1.26 in (1973) |
| May 3 | 80.1°F (1902) | 26.1°F (1900) | 1.24 in (1935) |
| May 4 | 82.0°F (2012) | 30.0°F (1900) | 1.23 in (1902) |
| May 5 | 84.0°F (1896) | 25.0°F (1900) | 1.82 in (1982) |
| May 6 | 86.0°F (1896) | 30.0°F (1898) | 2.46 in (1960) |
| May 7 | 88.0°F (1896) | 36.0°F (1898) | 1.80 in (1930) |
| May 8 | 89.1°F (1896) | 37.0°F (1898) | 2.73 in (1964) |
| May 9 | 90.0°F (1896) | 23.0°F (2020) | 1.20 in (1955) |
| May 10 | 89.1°F (1896) | 25.0°F (2020) | 2.07 in (1948) |
| May 11 | 87.1°F (1896) | 36.0°F (2019) | 1.78 in (1967) |
| May 12 | 88.0°F (1896) | 30.9°F (1898) | 1.12 in (1942) |
| May 13 | 87.1°F (1900) | 32.0°F (2013) | 3.33 in (2010) |
| May 14 | 82.9°F (2017) | 32.0°F (2013) | 2.22 in (2018) |
| May 15 | 89.1°F (2013) | 30.9°F (2016) | 0.71 in (1948) |
| May 16 | 84.9°F (2017) | 33.1°F (1897) | 1.34 in (1933) |
| May 17 | 88.0°F (2017) | 34.0°F (2014) | 2.50 in (1999) |
| May 18 | 86.0°F (1902) | 36.0°F (1899) | 2.40 in (1902) |
| May 19 | 82.9°F (1897) | 39.9°F (2016) | 1.70 in (1959) |
| May 20 | 86.0°F (1902) | 36.0°F (1900) | 0.98 in (2013) |
| May 21 | 84.9°F (2014) | 37.9°F (2015) | 1.84 in (2001) |
| May 22 | 81.0°F (2014) | 39.9°F (2015) | 3.35 in (1974) |
| May 23 | 82.0°F (2016) | 37.0°F (1899) | 1.12 in (1970) |
| May 24 | 88.0°F (1896) | 37.9°F (2013) | 3.47 in (1896) |
| May 25 | 87.1°F (2012) | 30.9°F (1897) | 1.21 in (2015) |
| May 26 | 82.9°F (2016) | 41.0°F (1897) | 2.45 in (1932) |
| May 27 | 88.0°F (1900) | 41.0°F (1902) | 1.78 in (1954) |
| May 28 | 93.9°F (2014) | 39.9°F (1902) | 1.68 in (1995) |
| May 29 | 91.0°F (2018) | 33.1°F (1897) | 2.22 in (1980) |
| May 30 | 88.0°F (1896) | 37.9°F (1897) | 1.48 in (2008) |
| May 31 | 84.0°F (2014) | 27.0°F (1897) | 1.30 in (2004) |