Jamesburg Weather in January
Average highs run from 42°F on January 1 to 40°F on January 31, and lows from 25°F to 22°F. Normal precipitation for the month is 3.74 in over about 11 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
- 40°F
- Average low
- 23°F
- Precipitation
- 3.74 in
- Snowfall
- 8.3 in
- Record high
- 76°FJan 26, 1950
- Record low
- -8°FJan 22, 1984
- Chance of a freeze
- 100%
- Daylight
- 9 h 21 min to 10 h 07 min
- Cloud cover
- 63%
- Humidity
- 85%
- Dew point
- 26°F
- Wind
- 8.5 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 | 42°F | 25°F | 64°F 2019 | -2°F 1918 | 35% | 10% |
| Jan 2 | 41°F | 25°F | 65°F 1993 | -1°F 1918 | 35% | 10% |
| Jan 3 | 41°F | 25°F | 66°F 2000 | 0°F 1918 | 35% | 10% |
| Jan 4 | 41°F | 24°F | 69°F 1950 | -4°F 1918 | 35% | 11% |
| Jan 5 | 41°F | 24°F | 67°F 1993 | 2°F 2014 | 35% | 11% |
| Jan 6 | 41°F | 24°F | 68°F 1950 | 5°F 1912 | 35% | 11% |
| Jan 7 | 41°F | 24°F | 66°F 1946 | 5°F 2014 | 35% | 11% |
| Jan 8 | 41°F | 24°F | 66°F 2012 | 3°F 2014 | 35% | 12% |
| Jan 9 | 40°F | 24°F | 70°F 1937 | -5°F 1981 | 35% | 12% |
| Jan 10 | 40°F | 23°F | 64°F 1998 | 0°F 1981 | 36% | 12% |
| Jan 11 | 40°F | 23°F | 62°F 1975 | -1°F 1942 | 36% | 12% |
| Jan 12 | 40°F | 23°F | 67°F 1913 | -4°F 1981 | 36% | 12% |
| Jan 13 | 40°F | 23°F | 71°F 1932 | -5°F 1912 | 36% | 13% |
| Jan 14 | 40°F | 23°F | 71°F 1932 | -6°F 1914 | 36% | 13% |
| Jan 15 | 40°F | 23°F | 74°F 1932 | 3°F 1988 | 36% | 13% |
| Jan 16 | 40°F | 23°F | 65°F 1953 | 1°F 2004 | 36% | 13% |
| Jan 17 | 40°F | 23°F | 67°F 1913 | -5°F 1982 | 36% | 14% |
| Jan 18 | 40°F | 22°F | 63°F 1937 | -6°F 1982 | 36% | 14% |
| Jan 19 | 40°F | 22°F | 68°F 1949 | 0°F 1948 | 36% | 14% |
| Jan 20 | 40°F | 22°F | 63°F 1951 | 1°F 1940 | 36% | 14% |
| Jan 21 | 40°F | 22°F | 66°F 1923 | -5°F 1985 | 35% | 14% |
| Jan 22 | 40°F | 22°F | 68°F 1916 | -8°F 1984 | 35% | 14% |
| Jan 23 | 40°F | 22°F | 69°F 1974 | -3°F 1936 | 35% | 15% |
| Jan 24 | 40°F | 22°F | 67°F 1967 | -1°F 1935 | 35% | 15% |
| Jan 25 | 40°F | 22°F | 63°F 1990 | -4°F 1935 | 35% | 15% |
| Jan 26 | 40°F | 22°F | 76°F 1950 | 3°F 1945 | 35% | 15% |
| Jan 27 | 40°F | 22°F | 74°F 1916 | -1°F 1935 | 35% | 15% |
| Jan 28 | 40°F | 22°F | 69°F 1916 | -7°F 1935 | 35% | 15% |
| Jan 29 | 40°F | 22°F | 66°F 1975 | 0°F 1977 | 35% | 15% |
| Jan 30 | 40°F | 22°F | 66°F 1914 | 0°F 1928 | 35% | 15% |
| Jan 31 | 40°F | 22°F | 64°F 1916 | 2°F 1948 | 35% | 15% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:21 AM, sunset 4:42 PM
- January 31
- sunrise 7:08 AM, sunset 5:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00286055 (New Brunswick 3 Se), public domain. Records: NOAA GHCN-Daily, station USC00284987, 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.