May weather in Salem, MO
The average temperature in Salem in May is 64.3°F (53.1°F–75.5°F). Average precipitation: 5.63 inches.
May is a spring month in Salem, and is warmer than the annual average of 55.3°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 2m. For travel, May is a wet month.
Avg High
75.5°F
Avg Low
53.1°F
Precipitation
5.63 in
Daylight
14h 2m
May records in Salem
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1952) | 28.9°F (1960) | 2.42 in (2019) |
| May 2 | 91.0°F (1959) | 28.9°F (1961) | 2.60 in (1937) |
| May 3 | 90.0°F (1912) | 30.0°F (1976) | 2.63 in (1990) |
| May 4 | 91.0°F (2014) | 28.9°F (1976) | 0.85 in (2018) |
| May 5 | 93.0°F (2014) | 32.0°F (1917) | 1.95 in (1999) |
| May 6 | 93.0°F (2014) | 30.0°F (1944) | 2.18 in (1929) |
| May 7 | 91.0°F (1934) | 30.9°F (1931) | 1.98 in (1961) |
| May 8 | 90.0°F (2023) | 30.9°F (1976) | 2.93 in (2002) |
| May 9 | 88.0°F (1910) | 30.0°F (1980) | 3.07 in (1909) |
| May 10 | 93.0°F (1916) | 30.0°F (1966) | 3.48 in (1950) |
| May 11 | 93.0°F (2022) | 33.1°F (2020) | 2.28 in (1943) |
| May 12 | 95.0°F (2022) | 30.0°F (1960) | 1.72 in (1918) |
| May 13 | 96.1°F (2022) | 33.1°F (1960) | 4.33 in (2002) |
| May 14 | 93.9°F (1915) | 36.0°F (1910) | 2.35 in (1967) |
| May 15 | 91.9°F (2013) | 33.1°F (1959) | 2.23 in (1956) |
| May 16 | 90.0°F (1911) | 33.1°F (1997) | 1.85 in (1919) |
| May 17 | 91.9°F (1911) | 37.9°F (1923) | 2.80 in (2002) |
| May 18 | 91.0°F (1911) | 37.0°F (1932) | 1.60 in (2001) |
| May 19 | 91.9°F (1912) | 35.1°F (1932) | 2.04 in (1957) |
| May 20 | 95.0°F (1911) | 35.1°F (1929) | 2.75 in (2025) |
| May 21 | 90.0°F (1912) | 35.1°F (1954) | 3.29 in (2001) |
| May 22 | 91.0°F (1925) | 37.0°F (1929) | 1.80 in (1989) |
| May 23 | 90.0°F (1953) | 34.0°F (1963) | 2.10 in (1971) |
| May 24 | 93.9°F (1911) | 37.9°F (1961) | 3.69 in (1927) |
| May 25 | 93.9°F (1911) | 30.9°F (1925) | 1.95 in (1954) |
| May 26 | 93.0°F (1911) | 37.0°F (1925) | 2.96 in (1963) |
| May 27 | 93.9°F (2012) | 34.0°F (1961) | 2.23 in (1915) |
| May 28 | 93.0°F (1911) | 36.0°F (1907) | 2.21 in (2017) |
| May 29 | 96.1°F (1911) | 39.0°F (1947) | 1.44 in (2015) |
| May 30 | 95.0°F (1913) | 34.0°F (1947) | 1.78 in (2013) |
| May 31 | 97.0°F (1913) | 36.0°F (1930) | 2.25 in (1906) |