May weather in St. Thomas, MO
The average temperature in St. Thomas in May is 64.9°F (54.6°F–75.2°F). Average precipitation: 5.17 inches.
May is a spring month in St. Thomas, and is warmer than the annual average of 55.4°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 5m. For travel, May is a wet month.
Avg High
75.2°F
Avg Low
54.6°F
Precipitation
5.17 in
Daylight
14h 5m
May records in St. Thomas
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.9°F (1901) | 28.0°F (1903) | 3.10 in (2019) |
| May 2 | 96.1°F (1899) | 24.1°F (1961) | 1.40 in (1929) |
| May 3 | 93.0°F (1895) | 28.0°F (1967) | 1.44 in (1910) |
| May 4 | 91.0°F (1952) | 28.9°F (1907) | 2.70 in (2017) |
| May 5 | 91.9°F (1952) | 32.0°F (1957) | 2.00 in (1999) |
| May 6 | 91.9°F (1896) | 33.1°F (1944) | 1.58 in (1975) |
| May 7 | 91.9°F (1934) | 30.0°F (1958) | 2.50 in (1910) |
| May 8 | 93.9°F (1895) | 37.0°F (1951) | 2.26 in (2008) |
| May 9 | 91.9°F (1896) | 32.0°F (1947) | 1.90 in (1909) |
| May 10 | 91.9°F (1928) | 34.0°F (1954) | 2.00 in (1981) |
| May 11 | 91.9°F (1914) | 34.0°F (1969) | 1.82 in (1979) |
| May 12 | 93.9°F (1956) | 30.9°F (1960) | 1.25 in (1929) |
| May 13 | 93.9°F (2022) | 32.0°F (1971) | 1.74 in (2002) |
| May 14 | 91.0°F (1900) | 37.0°F (1895) | 2.58 in (1970) |
| May 15 | 91.9°F (1899) | 33.1°F (1959) | 2.49 in (1970) |
| May 16 | 91.9°F (1911) | 35.1°F (1907) | 2.60 in (1990) |
| May 17 | 91.0°F (1906) | 34.0°F (1973) | 1.77 in (1995) |
| May 18 | 91.9°F (1962) | 37.9°F (1973) | 4.24 in (1943) |
| May 19 | 91.9°F (1996) | 35.1°F (1925) | 2.80 in (1896) |
| May 20 | 93.9°F (1902) | 36.0°F (1954) | 1.83 in (2025) |
| May 21 | 91.9°F (1893) | 35.1°F (1954) | 2.50 in (1896) |
| May 22 | 95.0°F (1901) | 39.0°F (1895) | 1.53 in (1973) |
| May 23 | 91.9°F (1898) | 39.9°F (1917) | 2.05 in (1918) |
| May 24 | 96.1°F (1911) | 36.0°F (1961) | 1.70 in (1936) |
| May 25 | 95.0°F (1911) | 34.0°F (1925) | 2.38 in (1909) |
| May 26 | 96.1°F (1911) | 39.9°F (1925) | 3.63 in (1942) |
| May 27 | 96.1°F (1899) | 32.0°F (1961) | 3.80 in (2000) |
| May 28 | 95.0°F (1911) | 36.0°F (1907) | 2.60 in (1916) |
| May 29 | 96.1°F (1900) | 35.1°F (1965) | 1.85 in (1916) |
| May 30 | 102.0°F (1934) | 35.1°F (1947) | 2.27 in (2001) |
| May 31 | 102.0°F (1934) | 39.9°F (1972) | 2.28 in (1903) |