Trenton January Weather

Averages and records for weather in Trenton, New Jersey in the month of January.
Typical Trenton January Weather
1991–2020
Average daily high 40.0 °F
Average daily low 24.1 °F
Average monthly precipitation 3.4 inches
Average monthly snow 7.9 inches
Daily chance of precipitation 33.9%
Daily chance of snow 14.8%
Trenton January Weather Records
1865–2024
Highest temperature 73 °F January 14, 1932
Lowest temperature -16 °F January 22, 1984
Highest daily low 57 °F January 4, 1950
Lowest daily high 3 °F January 21, 1985
Hottest average high temperature 50.4 °F 1950
Coldest average high temperature 26.9 °F 1918
Most daily precipitation 3.0 inches January 7, 1874
Most monthly precipitation 9.0 inches 1979
Most daily snow 16.7 inches January 23, 2016
Most monthly snow 33.0 inches 2011
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
January 1 42.3 26.5 64 -1
January 2 42.2 26.4 68 3
January 3 42.1 26.3 63 0
January 4 42.0 26.2 68 -1
January 5 41.8 26.0 64 -3
January 6 41.5 25.7 72 5
January 7 41.1 25.4 66 -2
January 8 40.7 25.1 71 4
January 9 40.6 24.9 67 0
January 10 40.6 24.9 65 -2
January 11 40.5 24.8 67 -2
January 12 40.2 24.6 68 -3
January 13 40.2 24.4 70 -8
January 14 40.1 24.3 73 -7
January 15 40.0 24.2 70 2
January 16 39.9 24.1 67 -5
January 17 39.9 24.0 62 -14
January 18 39.8 23.9 66 -9
January 19 39.8 23.8 65 -8
January 20 39.8 23.7 64 -8
January 21 39.9 23.8 64 -12
January 22 40.0 23.8 72 -16
January 23 40.0 23.8 72 -3
January 24 40.1 23.8 70 -1
January 25 40.0 23.7 64 0
January 26 40.0 23.6 72 1
January 27 39.9 23.4 68 1
January 28 39.8 23.4 65 -2
January 29 39.7 23.3 70 -3
January 30 39.7 23.3 70 4
January 31 39.7 23.3 64 -1
Weather Station Details
Years Station Coordinates
1999–2024 Trenton Mercer County Airport location
1977–1998 Trenton State College location
1913–1976 Trenton location
1865–1913 Trenton 2 location