December weather in Maryland Heights, MO
The average temperature in Maryland Heights in December is 35.7°F (26.7°F–44.7°F). Average precipitation: 2.54 inches. Average snowfall is 2.1 inches.
December is a winter month in Maryland Heights, and is cooler than the annual average of 56.3°F. Daily temperatures swing about 18°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 18m. For travel, December is cold.
Avg High
44.7°F
Avg Low
26.7°F
Precipitation
2.54 in
Snow
2.1 in
December records in Maryland Heights
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 71.1°F (1982) | 17.1°F (1976) | 1.06 in (1977) |
| December 2 | 70.0°F (1982) | 8.1°F (1985) | 0.55 in (1993) |
| December 3 | 73.9°F (1982) | 8.1°F (1985) | 2.86 in (1982) |
| December 4 | 75.0°F (2021) | 1.0°F (1989) | 1.47 in (1982) |
| December 5 | 73.0°F (2001) | 3.9°F (1991) | 0.69 in (1977) |
| December 6 | 73.0°F (1998) | 3.9°F (1977) | 1.25 in (2014) |
| December 7 | 72.0°F (1998) | 3.9°F (1984) | 1.28 in (2004) |
| December 8 | 72.0°F (1980) | 7.0°F (1976) | 0.40 in (2012) |
| December 9 | 75.0°F (1991) | -4.0°F (1995) | 1.00 in (1975) |
| December 10 | 66.9°F (2020) | -4.0°F (1995) | 0.72 in (1985) |
| December 11 | 68.0°F (2015) | -2.9°F (1995) | 1.91 in (1985) |
| December 12 | 71.1°F (1979) | 3.9°F (1989) | 0.92 in (2020) |
| December 13 | 71.1°F (1991) | 3.0°F (2010) | 1.10 in (2009) |
| December 14 | 68.0°F (1975) | 1.9°F (1985) | 1.30 in (2015) |
| December 15 | 70.0°F (1975) | 5.0°F (1989) | 1.60 in (1987) |
| December 16 | 72.0°F (2021) | -9.9°F (1989) | 1.14 in (1992) |
| December 17 | 69.1°F (1984) | -5.1°F (1989) | 1.28 in (2001) |
| December 18 | 64.0°F (1984) | -2.0°F (1981) | 0.58 in (1990) |
| December 19 | 66.0°F (1976) | -2.9°F (1989) | 1.59 in (1995) |
| December 20 | 68.0°F (1976) | -9.0°F (1983) | 1.07 in (2011) |
| December 21 | 66.9°F (1988) | -6.0°F (1989) | 1.05 in (1990) |
| December 22 | 64.9°F (2015) | -18.9°F (1989) | 0.73 in (1994) |
| December 23 | 62.1°F (1982) | -20.0°F (1989) | 1.35 in (2003) |
| December 24 | 72.0°F (1982) | -18.0°F (1989) | 1.43 in (1982) |
| December 25 | 73.9°F (2021) | -11.9°F (1983) | 1.19 in (2009) |
| December 26 | 71.1°F (2019) | -5.1°F (1983) | 0.83 in (1987) |
| December 27 | 69.1°F (2008) | -2.0°F (1983) | 5.30 in (2015) |
| December 28 | 69.1°F (1984) | 3.0°F (2000) | 1.72 in (2008) |
| December 29 | 77.0°F (2025) | -6.0°F (1983) | 1.15 in (2021) |
| December 30 | 71.1°F (1984) | -9.9°F (1983) | 2.36 in (1990) |
| December 31 | 68.0°F (2002) | -9.0°F (1976) | 0.65 in (2018) |