Wilmington January Weather

Averages and records for weather in Wilmington, Delaware in the month of January.
Typical Wilmington January Weather
1991–2020
Average daily high 41.2 °F
Average daily low 25.4 °F
Average monthly precipitation 3.2 inches
Average monthly snow 6.0 inches
Daily chance of precipitation 34.7%
Daily chance of snow 11.4%
Wilmington January Weather Records
1894–2024
Highest temperature 75 °F January 26, 1950
Lowest temperature -14 °F January 21, 1985
Highest daily low 56 °F January 4, 1950
Lowest daily high 4 °F January 19, 1994
Hottest average high temperature 52.6 °F 1950
Coldest average high temperature 28.3 °F 1918
Most daily precipitation 2.6 inches January 3, 1936
Most monthly precipitation 8.4 inches 1978
Most daily snow 22.0 inches January 7, 1996
Most monthly snow 27.0 inches 1935
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 43.4 27.8 65 0
January 2 43.3 27.7 64 1
January 3 43.1 27.6 64 4
January 4 43.0 27.5 69 -1
January 5 42.8 27.3 66 5
January 6 42.5 27.1 71 7
January 7 42.2 26.7 66 2
January 8 41.8 26.4 66 0
January 9 41.7 26.3 67 -2
January 10 41.7 26.3 66 1
January 11 41.6 26.2 69 -1
January 12 41.4 26.0 70 -3
January 13 41.3 25.8 70 -2
January 14 41.2 25.7 70 6
January 15 41.1 25.5 71 1
January 16 41.1 25.4 69 1
January 17 41.0 25.3 59 -10
January 18 41.0 25.2 65 -4
January 19 40.9 25.1 66 -5
January 20 40.9 25.0 66 -8
January 21 40.9 25.0 62 -14
January 22 41.0 25.0 66 -14
January 23 41.1 25.0 65 -4
January 24 41.1 24.9 71 2
January 25 41.1 25.0 67 -1
January 26 41.1 24.8 75 2
January 27 41.0 24.6 68 1
January 28 40.8 24.5 63 -6
January 29 40.8 24.4 70 0
January 30 40.8 24.4 70 3
January 31 40.8 24.4 65 3
Weather Station Details
Years Station Coordinates
1948–2024 New Castle Airport location
1932–1947 Wilmington Porter Research location
1894–1931 Wilmington City Hall location