Wilmington climate guide

Temperature in Wilmington (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
3°C maximum daytime temperature in January in Wilmington3
5°C maximum daytime temperature in February in Wilmington5
11°C maximum daytime temperature in March in Wilmington11
17°C maximum daytime temperature in April in Wilmington17
23°C maximum daytime temperature in May in Wilmington23
27°C maximum daytime temperature in June in Wilmington27
30°C maximum daytime temperature in July in Wilmington30
29°C maximum daytime temperature in August in Wilmington29
25°C maximum daytime temperature in September in Wilmington25
19°C maximum daytime temperature in October in Wilmington19
13°C maximum daytime temperature in November in Wilmington13
6°C maximum daytime temperature in December in Wilmington6
Min temperature (night-time)
-5°C minimum night-time temperature in January in Wilmington-5
-4°C minimum night-time temperature in February in Wilmington-4
0°C minimum night-time temperature in March in Wilmington0
5°C minimum night-time temperature in April in Wilmington5
11°C minimum night-time temperature in May in Wilmington11
16°C minimum night-time temperature in June in Wilmington16
19°C minimum night-time temperature in July in Wilmington19
18°C minimum night-time temperature in August in Wilmington18
14°C minimum night-time temperature in September in Wilmington14
7°C minimum night-time temperature in October in Wilmington7
3°C minimum night-time temperature in November in Wilmington3
-3°C minimum night-time temperature in December in Wilmington-3
Sea temperature
2°C sea temperature in January in Wilmington2
1°C sea temperature in February in Wilmington1
4°C sea temperature in March in Wilmington4
9°C sea temperature in April in Wilmington9
12°C sea temperature in May in Wilmington12
19°C sea temperature in June in Wilmington19
22°C sea temperature in July in Wilmington22
23°C sea temperature in August in Wilmington23
22°C sea temperature in September in Wilmington22
17°C sea temperature in October in Wilmington17
11°C sea temperature in November in Wilmington11
6°C sea temperature in December in Wilmington6

Sunshine & Daylight in Wilmington

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Wilmington10
11 hours of daylight per day in February in Wilmington11
12 hours of daylight per day in March in Wilmington12
13 hours of daylight per day in April in Wilmington13
14 hours of daylight per day in May in Wilmington14
15 hours of daylight per day in June in Wilmington15
15 hours of daylight per day in July in Wilmington15
14 hours of daylight per day in August in Wilmington14
12 hours of daylight per day in September in Wilmington12
11 hours of daylight per day in October in Wilmington11
10 hours of daylight per day in November in Wilmington10
9 hours of daylight per day in December in Wilmington9

Rainfall in Wilmington

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Wilmington10
10 days with some rainfall in February in Wilmington10
10 days with some rainfall in March in Wilmington10
11 days with some rainfall in April in Wilmington11
11 days with some rainfall in May in Wilmington11
10 days with some rainfall in June in Wilmington10
10 days with some rainfall in July in Wilmington10
9 days with some rainfall in August in Wilmington9
8 days with some rainfall in September in Wilmington8
7 days with some rainfall in October in Wilmington7
10 days with some rainfall in November in Wilmington10
10 days with some rainfall in December in Wilmington10
Average monthly rainfall (mm)
83 mm monthly rainfall in January in Wilmington83
75 mm monthly rainfall in February in Wilmington75
94 mm monthly rainfall in March in Wilmington94
95 mm monthly rainfall in April in Wilmington95
104 mm monthly rainfall in May in Wilmington104
96 mm monthly rainfall in June in Wilmington96
114 mm monthly rainfall in July in Wilmington114
98 mm monthly rainfall in August in Wilmington98
97 mm monthly rainfall in September in Wilmington97
80 mm monthly rainfall in October in Wilmington80
92 mm monthly rainfall in November in Wilmington92
94 mm monthly rainfall in December in Wilmington94

More climate for Wilmington

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Wilmington2
UV (maximum) index 3 (Moderate) in February in Wilmington3
UV (maximum) index 4 (Moderate) in March in Wilmington4
UV (maximum) index 6 (High) in April in Wilmington6
UV (maximum) index 8 (Very High) in May in Wilmington8
UV (maximum) index 9 (Very High) in June in Wilmington9
UV (maximum) index 9 (Very High) in July in Wilmington9
UV (maximum) index 8 (Very High) in August in Wilmington8
UV (maximum) index 6 (High) in September in Wilmington6
UV (maximum) index 4 (Moderate) in October in Wilmington4
UV (maximum) index 2 (Low) in November in Wilmington2
UV (maximum) index 2 (Low) in December in Wilmington2
Heat & Humidity
No heat & humidity in January in Wilmington0
No heat & humidity in February in Wilmington0
No heat & humidity in March in Wilmington0
No heat & humidity in April in Wilmington0
No heat & humidity in May in Wilmington0
Moderate heat & humidity in June in WilmingtonM
High heat & humidity in July in WilmingtonH
Moderate heat & humidity in August in WilmingtonM
Low heat & humidity in September in WilmingtonL
No heat & humidity in October in Wilmington0
No heat & humidity in November in Wilmington0
No heat & humidity in December in Wilmington0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Wilmington, Delaware shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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