Dorchester Weather in January
Average highs run from 33°F on January 1 to 35°F on January 31, and lows from 13°F to 13°F. Normal precipitation for the month is 0.70 in over about 6 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
- 33°F
- Average low
- 13°F
- Precipitation
- 0.70 in
- Snowfall
- 5.9 in
- Record high
- 73°FJan 10, 1990
- Record low
- -33°FJan 12, 1974
- Chance of a freeze
- 100%
- Daylight
- 9 h 20 min to 10 h 06 min
- Cloud cover
- 61%
- Humidity
- 78%
- Dew point
- 19°F
- Wind
- 11.6 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 | 33°F | 13°F | 58°F 1954 | -26°F 1974 | 20% | 12% |
| Jan 2 | 33°F | 13°F | 63°F 1997 | -15°F 1974 | 20% | 12% |
| Jan 3 | 32°F | 13°F | 53°F 2019 | -15°F 1974 | 20% | 12% |
| Jan 4 | 32°F | 13°F | 60°F 2026 | -19°F 1974 | 20% | 12% |
| Jan 5 | 32°F | 13°F | 68°F 2012 | -14°F 1974 | 20% | 12% |
| Jan 6 | 32°F | 13°F | 61°F 2026 | -12°F 1974 | 20% | 12% |
| Jan 7 | 32°F | 13°F | 66°F 2026 | -20°F 1974 | 20% | 12% |
| Jan 8 | 32°F | 12°F | 70°F 2003 | -11°F 1979 | 20% | 12% |
| Jan 9 | 33°F | 12°F | 56°F 2002 | -21°F 1974 | 20% | 12% |
| Jan 10 | 33°F | 12°F | 73°F 1990 | -18°F 1982 | 20% | 12% |
| Jan 11 | 33°F | 12°F | 65°F 1986 | -29°F 1974 | 20% | 12% |
| Jan 12 | 33°F | 12°F | 64°F 1987 | -33°F 1974 | 20% | 13% |
| Jan 13 | 33°F | 12°F | 70°F 1996 | -14°F 2024 | 20% | 13% |
| Jan 14 | 33°F | 12°F | 60°F 1990 | -18°F 2024 | 20% | 13% |
| Jan 15 | 33°F | 12°F | 69°F 2006 | -18°F 2005 | 20% | 13% |
| Jan 16 | 33°F | 12°F | 60°F 1986 | -19°F 1977 | 20% | 13% |
| Jan 17 | 33°F | 12°F | 64°F 1986 | -15°F 1978 | 20% | 13% |
| Jan 18 | 33°F | 12°F | 66°F 1951 | -9°F 1984 | 20% | 13% |
| Jan 19 | 33°F | 12°F | 66°F 2014 | -14°F 1985 | 20% | 13% |
| Jan 20 | 33°F | 12°F | 66°F 1986 | -17°F 2024 | 20% | 13% |
| Jan 21 | 33°F | 12°F | 59°F 1992 | -12°F 1954 | 20% | 13% |
| Jan 22 | 34°F | 13°F | 60°F 2009 | -9°F 1948 | 20% | 13% |
| Jan 23 | 34°F | 13°F | 68°F 1981 | -20°F 1948 | 20% | 13% |
| Jan 24 | 34°F | 13°F | 72°F 1981 | -10°F 2008 | 20% | 13% |
| Jan 25 | 34°F | 13°F | 61°F 2002 | -12°F 2026 | 20% | 14% |
| Jan 26 | 34°F | 13°F | 68°F 2002 | -16°F 1950 | 20% | 14% |
| Jan 27 | 34°F | 13°F | 60°F 2006 | -14°F 1950 | 20% | 14% |
| Jan 28 | 34°F | 13°F | 64°F 2015 | -15°F 1948 | 20% | 14% |
| Jan 29 | 34°F | 13°F | 60°F 2022 | -14°F 1979 | 20% | 14% |
| Jan 30 | 34°F | 13°F | 70°F 2012 | -10°F 1980 | 20% | 14% |
| Jan 31 | 35°F | 13°F | 72°F 1989 | -20°F 1979 | 20% | 14% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:52 AM, sunset 5:12 PM
- January 31
- sunrise 7:39 AM, sunset 5:45 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00253065 (Friend 3E), public domain. Records: NOAA GHCN-Daily, station USW00014939, 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.