New Haven December Weather

Averages and records for weather in New Haven, Connecticut in the month of December.
Typical New Haven December Weather
1991–2020
Average daily high 43.5 °F
Average daily low 29.8 °F
Average monthly precipitation 4.0 inches
Average monthly snow 6.0 inches
Daily chance of precipitation 37.2%
Daily chance of snow 9.3%
New Haven December Weather Records
1896–2024
Highest temperature 76 °F December 7, 1998
Lowest temperature -12 °F December 30, 1933
Highest daily low 53 °F December 1, 2006
Lowest daily high 4 °F December 30, 1917
Hottest average high temperature 53.6 °F 2015
Coldest average high temperature 30.9 °F 1989
Most daily precipitation 3.7 inches December 4, 1968
Most monthly precipitation 9.6 inches 1901
Most daily snow 16.0 inches December 26, 1947
Most monthly snow 25.8 inches 1945
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 47.7 33.6 67 7
December 2 47.4 33.4 60 13
December 3 47.2 33.2 65 9
December 4 46.9 32.9 72 4
December 5 46.5 32.5 62 7
December 6 46.1 32.2 67 9
December 7 45.8 32.0 76 8
December 8 45.7 31.8 63 5
December 9 45.5 31.6 63 -4
December 10 45.3 31.5 66 0
December 11 45.0 31.2 65 6
December 12 44.7 30.9 61 3
December 13 44.3 30.6 61 7
December 14 44.0 30.3 60 -6
December 15 43.8 30.0 63 7
December 16 43.4 29.7 64 4
December 17 43.1 29.4 61 -5
December 18 42.9 29.2 61 -3
December 19 42.6 28.9 57 -1
December 20 42.4 28.7 58 -9
December 21 42.2 28.5 62 -10
December 22 42.0 28.4 60 -2
December 23 42.0 28.3 60 3
December 24 41.8 28.1 61 0
December 25 41.5 27.9 64 -4
December 26 41.4 27.8 62 -4
December 27 41.2 27.6 63 -2
December 28 41.0 27.4 59 -1
December 29 41.0 27.3 58 -12
December 30 40.9 27.2 61 -12
December 31 40.7 27.0 61 -9
Weather Station Details
Years Station Coordinates
1949–2024 Sikorsky Memorial Airport location
1896–1948 Bridgeport location