March weather in Florissant, MO
The average temperature in Florissant in March is 46.6°F (36.7°F–56.6°F). Average precipitation: 3.50 inches. Average snowfall is 2.3 inches.
March is a spring month in Florissant, and is cooler than the annual average of 57.4°F. Daily temperatures swing about 19.9°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 11h 44m. For travel, March is cool.
Avg High
56.6°F
Avg Low
36.7°F
Precipitation
3.50 in
Snow
2.3 in
March records in Florissant
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 78.1°F (1992) | 5.0°F (1962) | 0.68 in (1953) |
| March 2 | 82.0°F (2022) | 1.9°F (1980) | 1.21 in (1945) |
| March 3 | 84.9°F (1974) | 1.0°F (1943) | 1.66 in (2023) |
| March 4 | 79.0°F (1974) | -0.9°F (1978) | 1.44 in (1963) |
| March 5 | 84.0°F (1956) | -5.1°F (1960) | 1.06 in (1967) |
| March 6 | 84.9°F (1956) | 1.9°F (1960) | 1.65 in (2022) |
| March 7 | 84.9°F (1974) | 1.9°F (1943) | 1.80 in (1978) |
| March 8 | 82.0°F (1974) | 3.9°F (1943) | 0.90 in (1998) |
| March 9 | 79.0°F (1990) | 12.0°F (1969) | 1.33 in (1964) |
| March 10 | 87.1°F (2026) | 12.0°F (1948) | 1.35 in (2013) |
| March 11 | 84.9°F (1972) | 8.1°F (1948) | 2.26 in (1977) |
| March 12 | 84.0°F (1972) | 1.0°F (1948) | 1.42 in (1961) |
| March 13 | 82.9°F (2012) | 12.0°F (1968) | 1.10 in (2015) |
| March 14 | 86.0°F (2012) | 12.9°F (1993) | 1.21 in (2011) |
| March 15 | 82.0°F (2016) | 15.1°F (1949) | 1.10 in (2001) |
| March 16 | 86.0°F (1945) | 17.1°F (1941) | 0.68 in (1963) |
| March 17 | 82.9°F (2011) | 12.9°F (1941) | 1.34 in (2012) |
| March 18 | 84.0°F (2025) | 15.1°F (1941) | 2.46 in (2008) |
| March 19 | 82.0°F (2012) | 10.0°F (1965) | 1.43 in (2018) |
| March 20 | 88.0°F (2026) | 12.9°F (1965) | 2.02 in (1989) |
| March 21 | 87.1°F (1997) | 16.0°F (1960) | 1.77 in (1948) |
| March 22 | 90.0°F (2026) | 19.0°F (2002) | 1.05 in (2005) |
| March 23 | 84.0°F (1939) | 7.0°F (1974) | 1.35 in (1969) |
| March 24 | 84.0°F (1967) | 3.0°F (1974) | 1.90 in (1978) |
| March 25 | 82.9°F (2007) | 10.9°F (1955) | 1.40 in (1945) |
| March 26 | 93.0°F (2026) | 5.0°F (1955) | 1.57 in (2004) |
| March 27 | 86.0°F (1945) | 15.1°F (1955) | 1.44 in (1975) |
| March 28 | 89.1°F (1985) | 24.1°F (1966) | 2.38 in (1977) |
| March 29 | 88.0°F (1963) | 21.0°F (1970) | 1.93 in (1985) |
| March 30 | 86.0°F (1986) | 18.0°F (1964) | 1.84 in (2022) |
| March 31 | 87.1°F (1981) | 19.9°F (1969) | 1.22 in (2008) |