May weather in Ironton, MO
The average temperature in Ironton in May is 64.0°F (51.9°F–76.1°F). Average precipitation: 5.32 inches.
May is a spring month in Ironton, and is warmer than the annual average of 54.5°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 2m. For travel, May is a wet month.
Avg High
76.1°F
Avg Low
51.9°F
Precipitation
5.32 in
Daylight
14h 2m
May records in Ironton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (2007) | 28.9°F (1963) | 2.70 in (1946) |
| May 2 | 88.0°F (1968) | 25.0°F (1989) | 2.80 in (2011) |
| May 3 | 90.0°F (1968) | 28.0°F (1967) | 3.03 in (1979) |
| May 4 | 84.9°F (1965) | 27.0°F (1976) | 2.20 in (2013) |
| May 5 | 89.1°F (1965) | 30.0°F (2013) | 1.31 in (1935) |
| May 6 | 89.1°F (2014) | 28.9°F (1968) | 1.33 in (1960) |
| May 7 | 89.1°F (2012) | 24.1°F (1989) | 2.06 in (1973) |
| May 8 | 90.0°F (1965) | 30.0°F (1989) | 3.31 in (2002) |
| May 9 | 90.0°F (1966) | 28.0°F (1980) | 4.27 in (1950) |
| May 10 | 87.1°F (1963) | 28.9°F (1966) | 1.69 in (2016) |
| May 11 | 91.9°F (1963) | 26.1°F (1989) | 2.07 in (1968) |
| May 12 | 90.0°F (2022) | 25.0°F (1989) | 1.32 in (1966) |
| May 13 | 91.0°F (2022) | 30.9°F (1989) | 5.50 in (2002) |
| May 14 | 91.0°F (1998) | 34.0°F (2021) | 3.88 in (1983) |
| May 15 | 91.9°F (2013) | 15.1°F (1996) | 2.38 in (1974) |
| May 16 | 88.0°F (1977) | 32.0°F (1997) | 4.25 in (1986) |
| May 17 | 89.1°F (1977) | 33.1°F (1973) | 4.71 in (2002) |
| May 18 | 91.9°F (1964) | 34.0°F (1973) | 3.33 in (1995) |
| May 19 | 91.0°F (1964) | 34.0°F (1976) | 2.96 in (1957) |
| May 20 | 91.0°F (1987) | 35.1°F (1968) | 3.43 in (1935) |
| May 21 | 90.0°F (1964) | 34.0°F (1968) | 1.20 in (2019) |
| May 22 | 93.0°F (1987) | 36.0°F (1968) | 3.40 in (1957) |
| May 23 | 91.9°F (1975) | 33.1°F (1963) | 2.68 in (1957) |
| May 24 | 91.0°F (1972) | 39.0°F (1967) | 1.06 in (1973) |
| May 25 | 91.0°F (1978) | 37.9°F (1976) | 2.57 in (1946) |
| May 26 | 93.0°F (1978) | 30.9°F (1988) | 2.95 in (1990) |
| May 27 | 93.9°F (2012) | 35.1°F (1988) | 1.94 in (1973) |
| May 28 | 93.0°F (1978) | 37.0°F (1971) | 1.54 in (2017) |
| May 29 | 93.9°F (2012) | 37.0°F (1964) | 0.94 in (1935) |
| May 30 | 91.0°F (1989) | 37.0°F (1984) | 1.06 in (1974) |
| May 31 | 91.0°F (1977) | 37.9°F (1984) | 2.80 in (1997) |