January weather in Southwest City, MO
The average temperature in Southwest City in January is 38.7°F (28.7°F–48.8°F). Average precipitation: 2.81 inches. Average snowfall is 3.6 inches.
January is a winter month in Southwest City, and is cooler than the annual average of 60.5°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 46m. For travel, January is cool.
Avg High
48.8°F
Avg Low
28.7°F
Precipitation
2.81 in
Snow
3.6 in
January records in Southwest City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 77.0°F (1952) | -5.1°F (1928) | 2.29 in (1966) |
| January 2 | 75.0°F (2023) | -2.9°F (1979) | 0.94 in (1996) |
| January 3 | 75.0°F (2004) | -7.1°F (1911) | 1.11 in (1971) |
| January 4 | 69.1°F (1939) | -6.0°F (1959) | 2.46 in (2005) |
| January 5 | 71.1°F (1927) | -6.0°F (1942) | 1.93 in (2005) |
| January 6 | 71.1°F (2008) | -7.1°F (2014) | 0.78 in (1998) |
| January 7 | 73.0°F (1907) | -9.9°F (1912) | 1.10 in (1934) |
| January 8 | 70.0°F (2003) | -7.1°F (1979) | 5.07 in (2008) |
| January 9 | 70.0°F (1902) | -11.9°F (1970) | 2.00 in (1937) |
| January 10 | 72.0°F (1990) | -11.9°F (1977) | 2.02 in (2020) |
| January 11 | 75.9°F (1911) | -11.9°F (1962) | 1.98 in (1905) |
| January 12 | 72.0°F (1911) | -20.0°F (1918) | 2.50 in (1916) |
| January 13 | 73.0°F (1996) | -16.1°F (1918) | 2.17 in (1995) |
| January 14 | 72.0°F (1928) | -9.0°F (1905) | 2.00 in (1951) |
| January 15 | 77.0°F (1928) | -13.0°F (1905) | 1.20 in (1937) |
| January 16 | 71.1°F (1952) | -8.0°F (2024) | 2.05 in (1932) |
| January 17 | 75.0°F (1938) | -6.0°F (1997) | 1.92 in (1990) |
| January 18 | 72.0°F (1952) | -24.0°F (1930) | 1.45 in (1973) |
| January 19 | 71.1°F (1906) | -15.0°F (1984) | 2.34 in (1990) |
| January 20 | 75.9°F (1986) | -15.0°F (1918) | 1.24 in (1913) |
| January 21 | 72.0°F (1957) | -11.0°F (1918) | 5.47 in (1904) |
| January 22 | 75.0°F (1909) | -23.1°F (1930) | 1.48 in (1957) |
| January 23 | 73.9°F (1909) | -14.1°F (1926) | 1.20 in (1949) |
| January 24 | 75.0°F (1943) | -6.0°F (1963) | 2.30 in (1938) |
| January 25 | 71.1°F (1944) | -7.1°F (1905) | 1.42 in (2021) |
| January 26 | 73.0°F (1944) | -8.0°F (1907) | 2.00 in (1916) |
| January 27 | 75.0°F (1914) | -4.0°F (1940) | 1.44 in (1968) |
| January 28 | 73.0°F (2002) | -2.9°F (1915) | 1.06 in (1989) |
| January 29 | 75.0°F (2011) | -4.0°F (1904) | 2.78 in (1969) |
| January 30 | 75.0°F (1917) | -2.9°F (1949) | 2.77 in (1982) |
| January 31 | 73.0°F (1989) | -4.0°F (1979) | 3.47 in (1923) |