May weather in St. Olaf, IA
The average temperature in St. Olaf in May is 57.7°F (45.7°F–69.7°F). Average precipitation: 4.65 inches.
May is a spring month in St. Olaf, and is warmer than the annual average of 45.9°F. Daily temperatures swing about 24°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 28m. For travel, May is a comfortable month to visit.
Avg High
69.7°F
Avg Low
45.7°F
Precipitation
4.65 in
Daylight
14h 28m
May records in St. Olaf
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.0°F (1952) | 25.0°F (1907) | 1.20 in (1911) |
| May 2 | 91.9°F (1901) | 25.0°F (1950) | 1.58 in (1993) |
| May 3 | 88.0°F (1918) | 19.0°F (2005) | 1.87 in (2001) |
| May 4 | 89.1°F (1918) | 19.9°F (2011) | 1.53 in (2013) |
| May 5 | 93.9°F (1909) | 28.0°F (1910) | 2.10 in (1913) |
| May 6 | 90.0°F (1896) | 24.1°F (1974) | 2.33 in (1960) |
| May 7 | 91.9°F (1896) | 25.0°F (1976) | 1.25 in (1952) |
| May 8 | 91.0°F (1963) | 25.0°F (1983) | 1.25 in (1904) |
| May 9 | 93.9°F (1895) | 21.0°F (2020) | 1.62 in (1963) |
| May 10 | 91.0°F (1911) | 25.0°F (2020) | 1.75 in (1948) |
| May 11 | 90.0°F (2011) | 25.0°F (1981) | 1.95 in (1905) |
| May 12 | 91.9°F (2022) | 25.0°F (2020) | 1.12 in (1962) |
| May 13 | 93.9°F (2022) | 27.0°F (2013) | 2.49 in (2010) |
| May 14 | 90.0°F (1894) | 26.1°F (1895) | 1.95 in (1900) |
| May 15 | 93.9°F (2013) | 26.1°F (1973) | 2.20 in (1909) |
| May 16 | 90.0°F (1936) | 26.1°F (1997) | 1.23 in (1960) |
| May 17 | 91.9°F (1901) | 25.0°F (1973) | 4.50 in (1999) |
| May 18 | 91.0°F (1902) | 28.0°F (1945) | 3.10 in (1902) |
| May 19 | 90.0°F (1964) | 27.0°F (2002) | 2.55 in (1987) |
| May 20 | 91.0°F (1902) | 28.0°F (1907) | 1.20 in (2025) |
| May 21 | 91.9°F (1970) | 27.0°F (2002) | 2.00 in (1902) |
| May 22 | 93.0°F (1956) | 32.0°F (2006) | 2.26 in (2004) |
| May 23 | 91.9°F (1964) | 27.0°F (1963) | 1.88 in (1944) |
| May 24 | 91.0°F (1939) | 30.9°F (1979) | 1.65 in (1964) |
| May 25 | 93.0°F (1911) | 28.0°F (1979) | 1.32 in (1904) |
| May 26 | 93.9°F (1911) | 30.0°F (1983) | 2.26 in (2008) |
| May 27 | 93.9°F (1900) | 30.0°F (1992) | 2.46 in (1939) |
| May 28 | 95.0°F (2018) | 30.9°F (1947) | 3.14 in (1995) |
| May 29 | 93.0°F (2006) | 28.0°F (1947) | 2.22 in (1962) |
| May 30 | 93.9°F (1953) | 30.9°F (1984) | 2.68 in (2008) |
| May 31 | 93.0°F (1988) | 28.0°F (1897) | 1.55 in (1899) |