December weather in Salem, MO
The average temperature in Salem in December is 35.6°F (26.0°F–45.2°F). Average precipitation: 2.95 inches.
December is a winter month in Salem, and is cooler than the annual average of 55.3°F. Daily temperatures swing about 19.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 25m. For travel, December is cool.
Avg High
45.2°F
Avg Low
26.0°F
Precipitation
2.95 in
Snow
0.1 in
December records in Salem
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 72.0°F (2014) | 12.0°F (1960) | 1.66 in (2006) |
| December 2 | 72.0°F (2012) | 5.0°F (1929) | 0.70 in (1905) |
| December 3 | 78.1°F (2021) | -4.0°F (1929) | 5.41 in (1982) |
| December 4 | 78.1°F (2021) | 8.1°F (1905) | 2.00 in (1925) |
| December 5 | 72.0°F (1912) | 12.0°F (1928) | 1.62 in (2014) |
| December 6 | 75.0°F (1998) | 3.9°F (1950) | 1.33 in (1960) |
| December 7 | 70.0°F (1951) | -2.0°F (1950) | 2.00 in (1987) |
| December 8 | 73.0°F (1966) | -6.0°F (1917) | 0.90 in (1916) |
| December 9 | 72.0°F (1918) | -9.9°F (1917) | 1.15 in (2008) |
| December 10 | 70.0°F (2020) | -11.0°F (1917) | 2.47 in (1999) |
| December 11 | 72.0°F (2020) | 1.9°F (1917) | 1.34 in (1960) |
| December 12 | 73.0°F (1949) | -9.9°F (1962) | 1.03 in (1972) |
| December 13 | 72.0°F (1948) | -5.1°F (1917) | 1.85 in (2015) |
| December 14 | 66.0°F (1948) | -5.1°F (1985) | 1.05 in (1906) |
| December 15 | 73.0°F (1948) | -5.1°F (1916) | 1.96 in (1992) |
| December 16 | 69.1°F (1908) | -11.9°F (1989) | 1.46 in (2001) |
| December 17 | 70.0°F (1908) | -2.0°F (1989) | 3.20 in (1957) |
| December 18 | 68.0°F (1957) | -5.1°F (1989) | 2.80 in (1924) |
| December 19 | 68.0°F (1957) | -2.0°F (1983) | 2.00 in (1995) |
| December 20 | 69.1°F (1941) | -4.0°F (1989) | 1.58 in (1987) |
| December 21 | 66.9°F (1967) | -6.0°F (1989) | 1.68 in (1984) |
| December 22 | 70.0°F (1933) | -18.9°F (1989) | 0.83 in (1949) |
| December 23 | 73.0°F (1933) | -20.9°F (1989) | 1.18 in (1956) |
| December 24 | 70.0°F (2025) | -11.0°F (1983) | 1.85 in (1982) |
| December 25 | 73.0°F (2025) | -16.1°F (1983) | 2.10 in (1987) |
| December 26 | 70.0°F (2025) | -2.9°F (1983) | 1.77 in (2015) |
| December 27 | 75.0°F (1907) | -2.0°F (1925) | 5.70 in (1942) |
| December 28 | 79.0°F (1928) | -9.0°F (1924) | 2.15 in (1968) |
| December 29 | 75.9°F (2025) | -7.1°F (1917) | 1.14 in (1962) |
| December 30 | 71.1°F (1929) | -9.0°F (1917) | 2.80 in (1990) |
| December 31 | 70.0°F (1965) | -8.0°F (1976) | 2.10 in (1947) |