December weather in Greenbelt, MD
The average temperature in Greenbelt in December is 38.3°F (29.8°F–46.8°F). Average precipitation: 3.48 inches. Average snowfall is 2.3 inches.
December is a winter month in Greenbelt, and is cooler than the annual average of 55.8°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 16m. For travel, December is cool.
Avg High
46.8°F
Avg Low
29.8°F
Precipitation
3.48 in
Snow
2.3 in
December records in Greenbelt
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.0°F (1991) | 9.0°F (1976) | 1.21 in (2016) |
| December 2 | 75.0°F (2006) | 5.0°F (1967) | 2.58 in (1974) |
| December 3 | 69.1°F (1970) | 9.0°F (1976) | 1.43 in (1967) |
| December 4 | 71.1°F (1998) | 10.0°F (1966) | 1.52 in (1948) |
| December 5 | 73.9°F (1982) | 12.0°F (1966) | 0.94 in (2020) |
| December 6 | 73.9°F (1998) | 10.9°F (1957) | 1.02 in (1996) |
| December 7 | 77.0°F (1998) | 7.0°F (2002) | 1.09 in (2011) |
| December 8 | 79.0°F (1943) | 9.0°F (2002) | 2.02 in (2011) |
| December 9 | 82.9°F (1943) | 10.9°F (1976) | 1.78 in (1972) |
| December 10 | 79.0°F (1943) | 9.0°F (1960) | 1.20 in (1991) |
| December 11 | 72.0°F (1966) | 3.9°F (1968) | 1.75 in (2023) |
| December 12 | 70.0°F (1943) | 8.1°F (1968) | 1.66 in (2002) |
| December 13 | 70.0°F (2015) | 5.0°F (1988) | 1.28 in (1983) |
| December 14 | 73.9°F (1952) | 5.0°F (1960) | 1.53 in (1996) |
| December 15 | 70.0°F (2015) | 7.0°F (1962) | 1.01 in (1981) |
| December 16 | 70.0°F (1971) | 3.0°F (1958) | 2.46 in (2018) |
| December 17 | 70.0°F (1971) | -0.9°F (1951) | 1.32 in (2020) |
| December 18 | 69.1°F (1984) | 3.9°F (1960) | 3.33 in (1977) |
| December 19 | 73.0°F (2006) | 3.0°F (1989) | 2.01 in (1977) |
| December 20 | 69.1°F (1943) | 5.0°F (1960) | 0.48 in (2009) |
| December 21 | 70.0°F (1943) | 7.0°F (1981) | 1.66 in (1973) |
| December 22 | 70.0°F (2013) | 3.0°F (1989) | 1.42 in (1972) |
| December 23 | 68.0°F (2013) | -6.0°F (1960) | 1.25 in (2022) |
| December 24 | 70.0°F (1990) | -0.9°F (1960) | 1.04 in (2015) |
| December 25 | 71.1°F (2015) | 0.0°F (1989) | 2.17 in (1986) |
| December 26 | 73.9°F (1943) | -35.0°F (1983) | 1.35 in (2002) |
| December 27 | 71.1°F (1964) | 1.0°F (1983) | 1.37 in (2012) |
| December 28 | 78.1°F (1982) | 6.1°F (1948) | 1.27 in (1990) |
| December 29 | 71.1°F (1984) | 9.0°F (1977) | 1.13 in (1967) |
| December 30 | 79.0°F (1943) | 8.1°F (1976) | 0.99 in (2013) |
| December 31 | 68.0°F (1990) | 0.0°F (1963) | 1.05 in (1969) |