Boston Weather in January
Average highs run from 31°F on January 1 to 29°F on January 31, and lows from 18°F to 14°F. Normal precipitation for the month is 4.84 in over about 23 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 30°F
- Average low
- 16°F
- Precipitation
- 4.84 in
- Snowfall
- 50.5 in
- Record high
- 72°FJan 25, 1950
- Record low
- -16°FJan 17, 1982
- Chance of a freeze
- 100%
- Daylight
- 9 h 07 min to 9 h 57 min
- Cloud cover
- 81%
- Humidity
- 91%
- Dew point
- 20°F
- Wind
- 9.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jan 1 | 31°F | 18°F | 63°F 1985 | -4°F 2018 | 72% | 53% |
| Jan 2 | 31°F | 18°F | 58°F 2000 | -2°F 1970 | 72% | 54% |
| Jan 3 | 31°F | 18°F | 61°F 1950 | -1°F 1981 | 72% | 54% |
| Jan 4 | 30°F | 18°F | 62°F 1993 | -7°F 1981 | 72% | 54% |
| Jan 5 | 30°F | 17°F | 62°F 1997 | -4°F 1996 | 72% | 55% |
| Jan 6 | 30°F | 17°F | 61°F 1946 | -10°F 1996 | 72% | 55% |
| Jan 7 | 30°F | 17°F | 63°F 2008 | -7°F 1940 | 73% | 55% |
| Jan 8 | 30°F | 17°F | 66°F 2008 | -6°F 1968 | 73% | 56% |
| Jan 9 | 30°F | 17°F | 64°F 2008 | -9°F 1968 | 73% | 56% |
| Jan 10 | 30°F | 16°F | 58°F 1950 | -7°F 1982 | 73% | 56% |
| Jan 11 | 30°F | 16°F | 67°F 2020 | -8°F 1968 | 73% | 56% |
| Jan 12 | 30°F | 16°F | 61°F 2005 | -11°F 1968 | 73% | 57% |
| Jan 13 | 29°F | 16°F | 68°F 2005 | -7°F 1957 | 73% | 57% |
| Jan 14 | 29°F | 16°F | 66°F 1995 | -9°F 1957 | 73% | 58% |
| Jan 15 | 29°F | 16°F | 67°F 1995 | -12°F 1957 | 73% | 58% |
| Jan 16 | 29°F | 16°F | 57°F 1953 | -10°F 1982 | 73% | 59% |
| Jan 17 | 29°F | 15°F | 56°F 1952 | -16°F 1982 | 73% | 59% |
| Jan 18 | 29°F | 15°F | 58°F 1973 | -6°F 1977 | 73% | 60% |
| Jan 19 | 29°F | 15°F | 61°F 1996 | -10°F 1994 | 73% | 61% |
| Jan 20 | 29°F | 15°F | 62°F 1951 | -5°F 1983 | 73% | 61% |
| Jan 21 | 29°F | 15°F | 60°F 2017 | -10°F 1985 | 73% | 62% |
| Jan 22 | 29°F | 15°F | 56°F 1957 | -7°F 1976 | 73% | 62% |
| Jan 23 | 29°F | 15°F | 57°F 1967 | -11°F 1976 | 73% | 62% |
| Jan 24 | 29°F | 15°F | 60°F 1950 | -11°F 1963 | 73% | 63% |
| Jan 25 | 29°F | 15°F | 72°F 1950 | -8°F 1945 | 73% | 63% |
| Jan 26 | 29°F | 15°F | 70°F 1950 | -2°F 1945 | 73% | 63% |
| Jan 27 | 29°F | 15°F | 56°F 1974 | -5°F 1939 | 73% | 63% |
| Jan 28 | 29°F | 15°F | 51°F 1990 | -6°F 1966 | 73% | 64% |
| Jan 29 | 29°F | 15°F | 58°F 2013 | -7°F 1977 | 72% | 64% |
| Jan 30 | 29°F | 14°F | 66°F 2013 | -3°F 2003 | 72% | 64% |
| Jan 31 | 29°F | 14°F | 62°F 1988 | -4°F 1948 | 72% | 64% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:45 AM, sunset 4:52 PM
- January 31
- sunrise 7:30 AM, sunset 5:27 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00301625 (Colden 1W), public domain. Records: NOAA GHCN-Daily, station USW00014733, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.