December weather in Belfast, ME
The average temperature in Belfast in December is 26.6°F (18.4°F–34.9°F). Average precipitation: 4.65 inches. Average snowfall is 13.2 inches.
December is a winter month in Belfast, and is cooler than the annual average of 44.1°F. Daily temperatures swing about 16.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 8h 40m. For travel, December is cold.
Avg High
34.9°F
Avg Low
18.4°F
Precipitation
4.65 in
Snow
13.2 in
December records in Belfast
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 63.0°F (2001) | 3.0°F (1901) | 2.00 in (2020) |
| December 2 | 57.9°F (2020) | 1.0°F (1989) | 1.67 in (1996) |
| December 3 | 54.0°F (1994) | 0.0°F (1976) | 2.75 in (1986) |
| December 4 | 64.0°F (1982) | 6.1°F (1976) | 2.20 in (1990) |
| December 5 | 64.9°F (1982) | 1.9°F (1901) | 1.70 in (1968) |
| December 6 | 61.0°F (1982) | -2.0°F (1901) | 1.55 in (1962) |
| December 7 | 64.0°F (1998) | -6.0°F (1902) | 2.11 in (1945) |
| December 8 | 59.0°F (1951) | -9.0°F (1964) | 1.30 in (2011) |
| December 9 | 54.0°F (1974) | -17.0°F (1902) | 3.10 in (1950) |
| December 10 | 59.0°F (1953) | -15.0°F (1902) | 3.00 in (1975) |
| December 11 | 59.0°F (1966) | -9.9°F (1977) | 2.11 in (1993) |
| December 12 | 59.0°F (1979) | -11.9°F (1977) | 2.12 in (1967) |
| December 13 | 57.9°F (1946) | -8.0°F (1902) | 2.50 in (1983) |
| December 14 | 53.1°F (1901) | -8.0°F (1982) | 2.47 in (2002) |
| December 15 | 55.0°F (1901) | -8.0°F (1980) | 2.99 in (1901) |
| December 16 | 55.0°F (2008) | -9.9°F (1985) | 2.04 in (1947) |
| December 17 | 55.9°F (1973) | -17.0°F (1951) | 3.58 in (1973) |
| December 18 | 55.0°F (1973) | -14.1°F (1980) | 1.36 in (1975) |
| December 19 | 52.0°F (1954) | -11.9°F (1989) | 1.85 in (1954) |
| December 20 | 57.0°F (1957) | -20.0°F (1975) | 0.90 in (1961) |
| December 21 | 55.9°F (1957) | -20.9°F (1980) | 1.70 in (1951) |
| December 22 | 57.0°F (1949) | -22.0°F (1980) | 2.80 in (1977) |
| December 23 | 59.0°F (1990) | -9.0°F (1989) | 1.12 in (2006) |
| December 24 | 57.0°F (2003) | -18.9°F (1989) | 2.09 in (1994) |
| December 25 | 57.0°F (2014) | -13.0°F (1975) | 1.18 in (1986) |
| December 26 | 57.9°F (2020) | -27.0°F (1980) | 1.82 in (1945) |
| December 27 | 55.9°F (1964) | -18.0°F (1963) | 2.68 in (1894) |
| December 28 | 55.0°F (1949) | -13.0°F (1993) | 1.52 in (1961) |
| December 29 | 55.0°F (1982) | -14.1°F (1993) | 1.48 in (1901) |
| December 30 | 52.0°F (1948) | -17.0°F (2017) | 2.02 in (2016) |
| December 31 | 48.0°F (1990) | -23.1°F (1963) | 2.30 in (1962) |