January weather in Boston, MA
The average temperature in Boston in January is 29.9°F (23.1°F–36.8°F). Average precipitation: 3.39 inches. Average snowfall is 14.3 inches.
January is a winter month in Boston, and is cooler than the annual average of 51.9°F. Daily temperatures swing about 13.7°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 14m. For travel, January is cold.
Avg High
36.8°F
Avg Low
23.1°F
Precipitation
3.39 in
Snow
14.3 in
January records in Boston
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 61.0°F (1966) | 0.1°F (2018) | 1.40 in (1938) |
| January 2 | 61.0°F (1979) | 1.9°F (1968) | 2.24 in (1987) |
| January 3 | 64.0°F (2000) | 2.1°F (2014) | 1.51 in (1999) |
| January 4 | 64.0°F (1950) | -4.0°F (1981) | 1.57 in (1982) |
| January 5 | 63.0°F (2007) | -4.0°F (1981) | 1.06 in (1952) |
| January 6 | 69.1°F (2007) | 1.2°F (2018) | 1.34 in (1962) |
| January 7 | 60.1°F (2012) | -1.8°F (2018) | 1.67 in (1977) |
| January 8 | 66.9°F (2008) | -4.0°F (1968) | 1.47 in (1979) |
| January 9 | 64.0°F (1937) | -4.0°F (1968) | 1.96 in (1953) |
| January 10 | 57.9°F (2016) | -2.9°F (2004) | 1.82 in (2024) |
| January 11 | 70.0°F (2020) | -2.0°F (1968) | 1.41 in (2008) |
| January 12 | 73.9°F (2020) | 0.0°F (1981) | 1.43 in (1996) |
| January 13 | 61.0°F (2018) | 3.0°F (1957) | 1.44 in (2024) |
| January 14 | 66.0°F (1995) | -4.0°F (1957) | 1.01 in (1978) |
| January 15 | 66.0°F (1995) | -11.9°F (1957) | 1.79 in (1958) |
| January 16 | 64.0°F (1995) | -7.1°F (2004) | 1.22 in (2016) |
| January 17 | 57.0°F (1995) | -0.9°F (1974) | 0.83 in (1941) |
| January 18 | 63.0°F (1990) | -2.9°F (1974) | 1.04 in (1994) |
| January 19 | 61.0°F (1951) | 0.0°F (1983) | 1.81 in (1942) |
| January 20 | 60.1°F (1951) | -2.9°F (1946) | 2.05 in (1978) |
| January 21 | 60.1°F (2006) | 1.9°F (2005) | 2.52 in (1979) |
| January 22 | 62.1°F (1959) | -2.0°F (2005) | 1.25 in (1958) |
| January 23 | 62.1°F (1967) | -4.0°F (1976) | 1.48 in (1966) |
| January 24 | 62.1°F (1999) | -2.0°F (2011) | 1.53 in (1998) |
| January 25 | 57.0°F (2010) | -4.0°F (1945) | 2.08 in (1979) |
| January 26 | 72.0°F (1950) | 1.9°F (1994) | 1.18 in (1958) |
| January 27 | 63.0°F (1974) | 0.0°F (1994) | 1.82 in (1996) |
| January 28 | 60.1°F (1947) | 1.0°F (2003) | 1.29 in (1943) |
| January 29 | 64.9°F (2002) | 6.1°F (1954) | 1.27 in (1973) |
| January 30 | 60.1°F (2013) | -2.9°F (1948) | 1.01 in (1939) |
| January 31 | 61.0°F (1947) | 1.0°F (1951) | 0.72 in (2025) |