May weather in Iowa Falls, IA
The average temperature in Iowa Falls in May is 58.8°F (47.7°F–69.9°F). Average precipitation: 5.57 inches.
May is a spring month in Iowa Falls, and is warmer than the annual average of 46.7°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 25m. For travel, May is a wet month.
Avg High
69.9°F
Avg Low
47.7°F
Precipitation
5.57 in
Daylight
14h 25m
May records in Iowa Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1992) | 21.0°F (1909) | 1.75 in (1936) |
| May 2 | 90.0°F (2021) | 25.0°F (1909) | 1.64 in (2012) |
| May 3 | 90.0°F (1918) | 24.1°F (1909) | 2.06 in (1938) |
| May 4 | 91.9°F (1918) | 18.0°F (1907) | 1.47 in (1938) |
| May 5 | 90.0°F (1909) | 28.0°F (1917) | 1.87 in (1950) |
| May 6 | 97.0°F (1934) | 27.0°F (1925) | 2.58 in (1972) |
| May 7 | 93.9°F (1934) | 24.1°F (1906) | 2.81 in (2008) |
| May 8 | 93.9°F (1934) | 28.0°F (1931) | 1.45 in (1927) |
| May 9 | 93.9°F (1895) | 25.0°F (1945) | 2.65 in (1950) |
| May 10 | 91.0°F (1987) | 24.1°F (1966) | 1.50 in (1905) |
| May 11 | 93.9°F (2011) | 25.0°F (1925) | 2.45 in (1929) |
| May 12 | 91.9°F (2022) | 28.0°F (1895) | 3.10 in (2014) |
| May 13 | 93.0°F (2022) | 28.9°F (1918) | 3.09 in (2010) |
| May 14 | 93.0°F (1932) | 28.0°F (1895) | 2.33 in (1916) |
| May 15 | 97.0°F (2013) | 30.0°F (1904) | 1.18 in (1909) |
| May 16 | 93.0°F (1936) | 28.0°F (1921) | 1.20 in (1932) |
| May 17 | 93.0°F (1934) | 30.9°F (1915) | 2.58 in (1999) |
| May 18 | 98.1°F (1934) | 32.0°F (1915) | 2.24 in (1991) |
| May 19 | 98.1°F (1934) | 30.0°F (1894) | 2.97 in (1983) |
| May 20 | 97.0°F (1934) | 30.0°F (1907) | 2.00 in (1959) |
| May 21 | 91.0°F (1970) | 28.9°F (1895) | 2.90 in (2024) |
| May 22 | 99.0°F (1925) | 30.0°F (1963) | 3.27 in (2004) |
| May 23 | 91.0°F (1925) | 27.0°F (1963) | 2.12 in (1896) |
| May 24 | 95.0°F (1939) | 33.1°F (1924) | 2.73 in (1907) |
| May 25 | 98.1°F (1967) | 30.9°F (1925) | 2.43 in (1915) |
| May 26 | 93.0°F (1967) | 32.0°F (1961) | 2.15 in (1965) |
| May 27 | 93.9°F (2018) | 33.1°F (1907) | 3.42 in (2013) |
| May 28 | 98.1°F (2018) | 30.9°F (1947) | 1.49 in (1973) |
| May 29 | 100.0°F (1934) | 28.9°F (1947) | 2.82 in (1918) |
| May 30 | 105.1°F (1934) | 34.0°F (1897) | 2.55 in (2008) |
| May 31 | 107.1°F (1934) | 28.0°F (1897) | 1.15 in (1991) |