December weather in Brentwood, MD
The average temperature in Brentwood in December is 40.6°F (31.9°F–49.2°F). Average precipitation: 3.67 inches. Average snowfall is 1.3 inches.
December is a winter month in Brentwood, and is cooler than the annual average of 58.3°F. Daily temperatures swing about 17.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 17m. For travel, December is cool.
Avg High
49.2°F
Avg Low
31.9°F
Precipitation
3.67 in
Snow
1.3 in
December records in Brentwood
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.9°F (1991) | 12.0°F (2024) | 1.32 in (2020) |
| December 2 | 75.0°F (2006) | 12.0°F (1967) | 2.84 in (1974) |
| December 3 | 71.1°F (1950) | 10.9°F (1966) | 1.51 in (1967) |
| December 4 | 73.0°F (1998) | 14.0°F (1966) | 1.55 in (1983) |
| December 5 | 75.0°F (1982) | 15.1°F (2000) | 2.50 in (1993) |
| December 6 | 77.0°F (1998) | 17.1°F (1957) | 1.00 in (1962) |
| December 7 | 80.1°F (1998) | 12.9°F (2002) | 1.71 in (1971) |
| December 8 | 81.0°F (1998) | 14.0°F (2002) | 1.84 in (2011) |
| December 9 | 73.0°F (1978) | 16.0°F (1960) | 1.68 in (2009) |
| December 10 | 72.0°F (1966) | 15.1°F (1968) | 1.03 in (1991) |
| December 11 | 68.0°F (1971) | 9.0°F (1968) | 1.48 in (1992) |
| December 12 | 68.0°F (2021) | 6.1°F (1988) | 1.68 in (2008) |
| December 13 | 70.0°F (1948) | 5.0°F (1988) | 1.33 in (1983) |
| December 14 | 73.0°F (2015) | 12.9°F (1988) | 1.47 in (1996) |
| December 15 | 73.9°F (2015) | 12.9°F (1960) | 0.94 in (1981) |
| December 16 | 73.9°F (1971) | 10.9°F (1989) | 2.48 in (2018) |
| December 17 | 68.0°F (1971) | 7.0°F (1951) | 1.27 in (2020) |
| December 18 | 68.0°F (1984) | 14.0°F (1960) | 2.55 in (2023) |
| December 19 | 72.0°F (1984) | 10.0°F (1985) | 1.86 in (1977) |
| December 20 | 64.0°F (1957) | 10.9°F (1960) | 1.03 in (2009) |
| December 21 | 66.9°F (2018) | 10.9°F (1960) | 1.81 in (1973) |
| December 22 | 75.9°F (2018) | 7.0°F (1989) | 1.65 in (1969) |
| December 23 | 70.0°F (2013) | 5.0°F (1960) | 1.20 in (2022) |
| December 24 | 72.0°F (2015) | 8.1°F (1989) | 1.79 in (2015) |
| December 25 | 73.0°F (2015) | 0.0°F (1983) | 1.96 in (1986) |
| December 26 | 75.0°F (2015) | 1.0°F (1983) | 2.10 in (1969) |
| December 27 | 78.1°F (1971) | 5.0°F (1983) | 1.51 in (2012) |
| December 28 | 70.0°F (2015) | 10.0°F (1977) | 1.27 in (1990) |
| December 29 | 73.9°F (1984) | 10.0°F (1988) | 1.15 in (1983) |
| December 30 | 77.0°F (1984) | 10.0°F (1976) | 1.16 in (1948) |
| December 31 | 71.1°F (1984) | 7.0°F (1962) | 0.90 in (1969) |