Belfast Weather in January
Average highs run from 31°F on January 1 to 30°F on January 31, and lows from 13°F to 9°F. Normal precipitation for the month is 3.94 in over about 9 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
- 10°F
- Precipitation
- 3.94 in
- Snowfall
- 19.2 in
- Record high
- 55°FJan 25, 2010
- Record low
- -12°FJan 14, 2004
- Chance of a freeze
- 100%
- Daylight
- 8 h 55 min to 9 h 49 min
- Cloud cover
- 70%
- Humidity
- 91%
- Dew point
- 17°F
- Wind
- 7.4 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 | 13°F | 46°F 2005 | -10°F 2018 | 31% | 17% |
| Jan 2 | 31°F | 13°F | 46°F 2007 | -8°F 2014 | 31% | 17% |
| Jan 3 | 30°F | 13°F | 53°F 2000 | -10°F 2014 | 31% | 17% |
| Jan 4 | 30°F | 12°F | 50°F 2000 | -3°F 2014 | 31% | 17% |
| Jan 5 | 30°F | 12°F | 52°F 2000 | 1°F 1996 | 30% | 17% |
| Jan 6 | 30°F | 12°F | 51°F 2007 | -5°F 2018 | 30% | 17% |
| Jan 7 | 30°F | 12°F | 50°F 2007 | -7°F 2018 | 30% | 17% |
| Jan 8 | 30°F | 11°F | 46°F 2007 | -7°F 2015 | 30% | 17% |
| Jan 9 | 30°F | 11°F | 47°F 1999 | -6°F 2004 | 30% | 17% |
| Jan 10 | 30°F | 11°F | 47°F 1999 | -5°F 2004 | 30% | 17% |
| Jan 11 | 29°F | 11°F | 54°F 2016 | -4°F 2004 | 30% | 17% |
| Jan 12 | 29°F | 10°F | 50°F 2017 | 8°F 1995 | 30% | 17% |
| Jan 13 | 29°F | 10°F | 53°F 2018 | 8°F 2015 | 30% | 18% |
| Jan 14 | 29°F | 10°F | 49°F 2005 | -12°F 2004 | 29% | 18% |
| Jan 15 | 29°F | 10°F | 50°F 1995 | -8°F 2004 | 29% | 18% |
| Jan 16 | 29°F | 10°F | 50°F 1995 | -12°F 2004 | 29% | 18% |
| Jan 17 | 29°F | 10°F | 47°F 1995 | -2°F 1994 | 29% | 18% |
| Jan 18 | 29°F | 9°F | 51°F 2006 | -4°F 2003 | 29% | 18% |
| Jan 19 | 29°F | 9°F | 49°F 2006 | -7°F 1997 | 29% | 18% |
| Jan 20 | 29°F | 9°F | 46°F 1996 | 1°F 1994 | 28% | 18% |
| Jan 21 | 29°F | 9°F | 46°F 2006 | -2°F 2005 | 28% | 18% |
| Jan 22 | 29°F | 9°F | 48°F 2006 | -8°F 2005 | 28% | 18% |
| Jan 23 | 29°F | 9°F | 48°F 2018 | 0°F 2000 | 28% | 18% |
| Jan 24 | 29°F | 9°F | 50°F 2018 | -7°F 2011 | 28% | 18% |
| Jan 25 | 29°F | 9°F | 55°F 2010 | -7°F 2004 | 28% | 18% |
| Jan 26 | 29°F | 9°F | 48°F 2010 | -8°F 1994 | 27% | 18% |
| Jan 27 | 29°F | 9°F | 45°F 1996 | -10°F 1994 | 27% | 18% |
| Jan 28 | 29°F | 9°F | 47°F 2018 | -2°F 2003 | 27% | 18% |
| Jan 29 | 30°F | 9°F | 44°F 1990 | 5°F 2005 | 27% | 18% |
| Jan 30 | 30°F | 9°F | 49°F 2013 | -4°F 1997 | 27% | 18% |
| Jan 31 | 30°F | 9°F | 53°F 2013 | -10°F 1993 | 27% | 18% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:12 AM, sunset 4:07 PM
- January 31
- sunrise 6:55 AM, sunset 4:44 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00170480 (Belfast), public domain. Records: NOAA GHCN-Daily, station USC00176881, 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.