Trenton December Weather

Averages and records for weather in Trenton, New Jersey in the month of December.
Typical Trenton December Weather
1991–2020
Average daily high 44.7 °F
Average daily low 29.0 °F
Average monthly precipitation 4.1 inches
Average monthly snow 4.2 inches
Daily chance of precipitation 35.2%
Daily chance of snow 7.3%
Trenton December Weather Records
1865–2024
Highest temperature 76 °F December 7, 1998
Lowest temperature -8 °F December 30, 1880
Highest daily low 61 °F December 24, 2015
Lowest daily high 6 °F December 30, 1917
Hottest average high temperature 56.5 °F 2015
Coldest average high temperature 31.6 °F 1917
Most daily precipitation 2.6 inches December 30, 1948
Most monthly precipitation 9.5 inches 1996
Most daily snow 17.0 inches December 26, 1872
Most monthly snow 21.5 inches 1960
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
December 1 49.1 32.3 71 11
December 2 48.8 32.1 65 14
December 3 48.6 32.0 69 11
December 4 48.2 31.7 75 10
December 5 47.8 31.4 74 10
December 6 47.4 31.1 72 12
December 7 47.1 30.8 76 9
December 8 47.0 30.7 66 10
December 9 46.8 30.6 69 12
December 10 46.6 30.5 72 4
December 11 46.2 30.2 66 9
December 12 45.8 29.9 68 4
December 13 45.5 29.6 70 5
December 14 45.2 29.4 68 8
December 15 44.9 29.1 67 10
December 16 44.6 28.9 66 9
December 17 44.3 28.7 66 2
December 18 44.1 28.5 66 -1
December 19 43.9 28.2 64 6
December 20 43.7 28.1 65 -1
December 21 43.6 27.9 68 -2
December 22 43.4 27.8 68 4
December 23 43.4 27.7 70 2
December 24 43.2 27.6 72 -4
December 25 43.0 27.5 69 -3
December 26 42.9 27.3 68 -4
December 27 42.7 27.2 63 1
December 28 42.6 27.0 66 6
December 29 42.6 27.0 74 -4
December 30 42.6 26.9 64 -8
December 31 42.5 26.7 64 -6
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