May weather in Irwin, IA
The average temperature in Irwin in May is 61.7°F (49.3°F–74.1°F). Average precipitation: 4.74 inches.
May is a spring month in Irwin, and is warmer than the annual average of 49.5°F. Daily temperatures swing about 24.8°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 22m. For travel, May is a comfortable month to visit.
Avg High
74.1°F
Avg Low
49.3°F
Precipitation
4.74 in
Daylight
14h 22m
May records in Irwin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1959) | 23.0°F (1909) | 1.72 in (1951) |
| May 2 | 90.0°F (1901) | 18.0°F (1908) | 2.55 in (1941) |
| May 3 | 89.1°F (1949) | 25.0°F (1907) | 2.40 in (1959) |
| May 4 | 91.9°F (1918) | 19.0°F (1907) | 2.64 in (1981) |
| May 5 | 93.9°F (1909) | 27.0°F (1944) | 2.02 in (2003) |
| May 6 | 96.1°F (1934) | 25.0°F (1925) | 3.82 in (2007) |
| May 7 | 93.0°F (1934) | 28.0°F (1931) | 2.59 in (1973) |
| May 8 | 97.0°F (1934) | 30.9°F (1968) | 0.91 in (1993) |
| May 9 | 91.9°F (1934) | 27.0°F (1915) | 1.52 in (2013) |
| May 10 | 93.9°F (2011) | 25.0°F (1909) | 2.52 in (1986) |
| May 11 | 97.0°F (2011) | 28.9°F (1925) | 1.65 in (1920) |
| May 12 | 97.0°F (2000) | 30.0°F (1969) | 1.40 in (2014) |
| May 13 | 96.1°F (1915) | 27.0°F (1997) | 1.62 in (1970) |
| May 14 | 95.0°F (1915) | 30.0°F (1912) | 2.19 in (1916) |
| May 15 | 98.1°F (2013) | 30.9°F (1959) | 2.70 in (1998) |
| May 16 | 95.0°F (1939) | 30.0°F (1907) | 1.64 in (1928) |
| May 17 | 93.0°F (1934) | 30.0°F (1915) | 0.99 in (1991) |
| May 18 | 96.1°F (1934) | 28.0°F (1916) | 1.68 in (1979) |
| May 19 | 96.1°F (1934) | 37.0°F (1915) | 0.76 in (1899) |
| May 20 | 97.0°F (1934) | 34.0°F (1931) | 3.78 in (2001) |
| May 21 | 91.9°F (1925) | 30.0°F (1931) | 5.37 in (1962) |
| May 22 | 99.0°F (1925) | 28.9°F (1963) | 1.61 in (1976) |
| May 23 | 93.0°F (1939) | 28.9°F (1963) | 2.44 in (2004) |
| May 24 | 102.9°F (1939) | 32.0°F (1924) | 2.66 in (2007) |
| May 25 | 100.0°F (1967) | 30.9°F (1925) | 2.29 in (2004) |
| May 26 | 95.0°F (1926) | 32.0°F (1905) | 2.49 in (1962) |
| May 27 | 93.9°F (1931) | 33.1°F (1907) | 1.82 in (1973) |
| May 28 | 96.1°F (2014) | 33.1°F (1947) | 2.42 in (1962) |
| May 29 | 105.1°F (1934) | 30.9°F (1947) | 1.80 in (1903) |
| May 30 | 106.0°F (1934) | 37.0°F (1930) | 2.02 in (2008) |
| May 31 | 105.1°F (1934) | 39.0°F (1930) | 1.09 in (1937) |