December weather in Chelsea, MA
The average temperature in Chelsea in December is 35.7°F (29.2°F–42.2°F). Average precipitation: 4.30 inches. Average snowfall is 9.0 inches.
December is a winter month in Chelsea, and is cooler than the annual average of 51.9°F. Daily temperatures swing about 13°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 8h 54m. For travel, December is cold.
Avg High
42.2°F
Avg Low
29.2°F
Precipitation
4.30 in
Snow
9.0 in
December records in Chelsea
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 71.1°F (2001) | 10.0°F (1936) | 1.35 in (1977) |
| December 2 | 63.0°F (1982) | 10.0°F (1989) | 1.63 in (1974) |
| December 3 | 69.1°F (2009) | 6.1°F (1940) | 1.82 in (1986) |
| December 4 | 70.0°F (1982) | 1.9°F (1940) | 2.15 in (1968) |
| December 5 | 66.0°F (2001) | 12.0°F (2025) | 2.76 in (1993) |
| December 6 | 72.0°F (2001) | 15.1°F (1940) | 2.91 in (1937) |
| December 7 | 75.9°F (1998) | 14.0°F (1964) | 1.60 in (2011) |
| December 8 | 64.0°F (1951) | 12.0°F (1936) | 1.33 in (1969) |
| December 9 | 70.0°F (1966) | 10.0°F (1968) | 2.90 in (2014) |
| December 10 | 63.0°F (1946) | 9.0°F (1968) | 1.81 in (1936) |
| December 11 | 64.0°F (1971) | 3.0°F (1988) | 2.76 in (2024) |
| December 12 | 68.0°F (1979) | 1.9°F (1988) | 4.21 in (1992) |
| December 13 | 63.0°F (1984) | 7.0°F (1960) | 1.20 in (1983) |
| December 14 | 60.1°F (2019) | 6.1°F (1976) | 1.99 in (2002) |
| December 15 | 66.0°F (1975) | 9.0°F (1943) | 1.51 in (1981) |
| December 16 | 64.0°F (1971) | 1.9°F (1942) | 1.81 in (1960) |
| December 17 | 64.0°F (2000) | -2.9°F (1942) | 2.82 in (1970) |
| December 18 | 63.0°F (2023) | 9.0°F (1979) | 1.68 in (2023) |
| December 19 | 60.1°F (1990) | -7.1°F (1942) | 1.35 in (1986) |
| December 20 | 63.0°F (1957) | -11.0°F (1942) | 1.35 in (1936) |
| December 21 | 64.9°F (2018) | -5.1°F (1942) | 1.91 in (1946) |
| December 22 | 62.1°F (1990) | 3.0°F (1955) | 1.31 in (1969) |
| December 23 | 66.9°F (1990) | 3.0°F (1943) | 1.22 in (1947) |
| December 24 | 69.1°F (2015) | 0.0°F (1943) | 1.33 in (1994) |
| December 25 | 62.1°F (2015) | -7.1°F (1980) | 1.49 in (2020) |
| December 26 | 61.0°F (1982) | -4.0°F (1980) | 3.51 in (1969) |
| December 27 | 61.0°F (1949) | 3.9°F (1950) | 1.71 in (1964) |
| December 28 | 63.0°F (1982) | 5.2°F (2017) | 1.70 in (1967) |
| December 29 | 73.0°F (1984) | 2.1°F (2017) | 1.32 in (2013) |
| December 30 | 63.0°F (1984) | -2.9°F (1962) | 1.57 in (1942) |
| December 31 | 63.0°F (1965) | -4.0°F (1962) | 0.71 in (1972) |