May weather in St. James, MO
The average temperature in St. James in May is 65.8°F (55.7°F–75.9°F). Average precipitation: 5.48 inches.
May is a spring month in St. James, and is warmer than the annual average of 56.3°F. Daily temperatures swing about 20.2°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 3m. For travel, May is a wet month.
Avg High
75.9°F
Avg Low
55.7°F
Precipitation
5.48 in
Daylight
14h 3m
May records in St. James
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1952) | 32.0°F (1918) | 3.07 in (2019) |
| May 2 | 90.0°F (1959) | 32.0°F (1911) | 1.98 in (1937) |
| May 3 | 89.1°F (1952) | 34.0°F (2013) | 1.95 in (1990) |
| May 4 | 90.0°F (1949) | 30.0°F (1908) | 2.69 in (1987) |
| May 5 | 93.0°F (2014) | 33.1°F (1917) | 2.50 in (1999) |
| May 6 | 93.9°F (2014) | 30.9°F (1944) | 2.11 in (1996) |
| May 7 | 91.0°F (1934) | 33.1°F (1944) | 2.26 in (1973) |
| May 8 | 90.0°F (2023) | 37.9°F (1923) | 2.24 in (2008) |
| May 9 | 90.0°F (2000) | 35.1°F (1960) | 2.14 in (1909) |
| May 10 | 89.1°F (2011) | 30.9°F (1966) | 2.88 in (1981) |
| May 11 | 91.9°F (1914) | 36.0°F (1952) | 2.14 in (1897) |
| May 12 | 93.9°F (2022) | 37.0°F (1946) | 1.85 in (1918) |
| May 13 | 95.0°F (2022) | 39.0°F (1910) | 3.22 in (2002) |
| May 14 | 91.9°F (1915) | 35.1°F (1920) | 2.38 in (1983) |
| May 15 | 91.9°F (1915) | 37.0°F (1926) | 1.94 in (2023) |
| May 16 | 91.0°F (1944) | 37.9°F (2014) | 2.55 in (1896) |
| May 17 | 91.9°F (2001) | 39.0°F (2009) | 3.26 in (1957) |
| May 18 | 91.0°F (1996) | 35.1°F (2002) | 3.87 in (1997) |
| May 19 | 91.0°F (1996) | 35.1°F (2002) | 2.58 in (1950) |
| May 20 | 91.0°F (1974) | 41.0°F (1929) | 2.69 in (2025) |
| May 21 | 91.9°F (1925) | 39.9°F (1931) | 2.27 in (1898) |
| May 22 | 91.0°F (1921) | 42.1°F (1929) | 2.20 in (1910) |
| May 23 | 91.0°F (1921) | 37.0°F (1917) | 2.32 in (1968) |
| May 24 | 91.9°F (1921) | 39.9°F (1917) | 1.57 in (1927) |
| May 25 | 95.0°F (1962) | 32.0°F (1925) | 2.82 in (1945) |
| May 26 | 93.0°F (1914) | 41.0°F (1925) | 3.52 in (1963) |
| May 27 | 99.0°F (2012) | 39.0°F (1961) | 2.32 in (1915) |
| May 28 | 95.0°F (2012) | 44.1°F (1932) | 2.84 in (1912) |
| May 29 | 93.0°F (1926) | 37.9°F (1947) | 2.20 in (1945) |
| May 30 | 93.9°F (1913) | 39.0°F (1947) | 2.28 in (1944) |
| May 31 | 98.1°F (1913) | 41.0°F (1930) | 2.53 in (1956) |