Delaware climate guide

Temperature in Delaware (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
5°C maximum daytime temperature in January in Delaware (Dover)5
7°C maximum daytime temperature in February in Delaware (Dover)7
13°C maximum daytime temperature in March in Delaware (Dover)13
18°C maximum daytime temperature in April in Delaware (Dover)18
24°C maximum daytime temperature in May in Delaware (Dover)24
29°C maximum daytime temperature in June in Delaware (Dover)29
31°C maximum daytime temperature in July in Delaware (Dover)31
30°C maximum daytime temperature in August in Delaware (Dover)30
27°C maximum daytime temperature in September in Delaware (Dover)27
21°C maximum daytime temperature in October in Delaware (Dover)21
15°C maximum daytime temperature in November in Delaware (Dover)15
8°C maximum daytime temperature in December in Delaware (Dover)8
Min temperature (night-time)
-4°C minimum night-time temperature in January in Delaware (Dover)-4
-3°C minimum night-time temperature in February in Delaware (Dover)-3
1°C minimum night-time temperature in March in Delaware (Dover)1
5°C minimum night-time temperature in April in Delaware (Dover)5
11°C minimum night-time temperature in May in Delaware (Dover)11
16°C minimum night-time temperature in June in Delaware (Dover)16
19°C minimum night-time temperature in July in Delaware (Dover)19
18°C minimum night-time temperature in August in Delaware (Dover)18
14°C minimum night-time temperature in September in Delaware (Dover)14
8°C minimum night-time temperature in October in Delaware (Dover)8
3°C minimum night-time temperature in November in Delaware (Dover)3
-2°C minimum night-time temperature in December in Delaware (Dover)-2

Sunshine & Daylight in Delaware

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
5 hours of sunshine per day (54% of daylight hours) in January in Delaware5
6 hours of sunshine per day (55% of daylight hours) in February in Delaware6
7 hours of sunshine per day (58% of daylight hours) in March in Delaware7
8 hours of sunshine per day (60% of daylight hours) in April in Delaware8
8 hours of sunshine per day (59% of daylight hours) in May in Delaware8
9 hours of sunshine per day (63% of daylight hours) in June in Delaware9
9 hours of sunshine per day (62% of daylight hours) in July in Delaware9
8 hours of sunshine per day (62% of daylight hours) in August in Delaware8
8 hours of sunshine per day (60% of daylight hours) in September in Delaware8
7 hours of sunshine per day (61% of daylight hours) in October in Delaware7
6 hours of sunshine per day (56% of daylight hours) in November in Delaware6
5 hours of sunshine per day (53% of daylight hours) in December in Delaware5
Daily hours of daylight
10 hours of daylight per day in January in Delaware (Dover)10
11 hours of daylight per day in February in Delaware (Dover)11
12 hours of daylight per day in March in Delaware (Dover)12
13 hours of daylight per day in April in Delaware (Dover)13
14 hours of daylight per day in May in Delaware (Dover)14
15 hours of daylight per day in June in Delaware (Dover)15
15 hours of daylight per day in July in Delaware (Dover)15
14 hours of daylight per day in August in Delaware (Dover)14
12 hours of daylight per day in September in Delaware (Dover)12
11 hours of daylight per day in October in Delaware (Dover)11
10 hours of daylight per day in November in Delaware (Dover)10
9 hours of daylight per day in December in Delaware (Dover)9

Rainfall in Delaware

  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 Delaware (Dover)10
10 days with some rainfall in February in Delaware (Dover)10
10 days with some rainfall in March in Delaware (Dover)10
10 days with some rainfall in April in Delaware (Dover)10
10 days with some rainfall in May in Delaware (Dover)10
10 days with some rainfall in June in Delaware (Dover)10
11 days with some rainfall in July in Delaware (Dover)11
10 days with some rainfall in August in Delaware (Dover)10
8 days with some rainfall in September in Delaware (Dover)8
7 days with some rainfall in October in Delaware (Dover)7
9 days with some rainfall in November in Delaware (Dover)9
10 days with some rainfall in December in Delaware (Dover)10
Average monthly rainfall (mm)
84 mm monthly rainfall in January in Delaware (Dover)84
76 mm monthly rainfall in February in Delaware (Dover)76
97 mm monthly rainfall in March in Delaware (Dover)97
87 mm monthly rainfall in April in Delaware (Dover)87
98 mm monthly rainfall in May in Delaware (Dover)98
95 mm monthly rainfall in June in Delaware (Dover)95
103 mm monthly rainfall in July in Delaware (Dover)103
110 mm monthly rainfall in August in Delaware (Dover)110
102 mm monthly rainfall in September in Delaware (Dover)102
81 mm monthly rainfall in October in Delaware (Dover)81
83 mm monthly rainfall in November in Delaware (Dover)83
89 mm monthly rainfall in December in Delaware (Dover)89

More climate for Delaware

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Delaware (Dover)2
UV (maximum) index 3 (Moderate) in February in Delaware (Dover)3
UV (maximum) index 5 (Moderate) in March in Delaware (Dover)5
UV (maximum) index 6 (High) in April in Delaware (Dover)6
UV (maximum) index 8 (Very High) in May in Delaware (Dover)8
UV (maximum) index 9 (Very High) in June in Delaware (Dover)9
UV (maximum) index 9 (Very High) in July in Delaware (Dover)9
UV (maximum) index 8 (Very High) in August in Delaware (Dover)8
UV (maximum) index 7 (High) in September in Delaware (Dover)7
UV (maximum) index 4 (Moderate) in October in Delaware (Dover)4
UV (maximum) index 2 (Low) in November in Delaware (Dover)2
UV (maximum) index 2 (Low) in December in Delaware (Dover)2
Heat & Humidity
No heat & humidity in January in Delaware (Dover)0
No heat & humidity in February in Delaware (Dover)0
No heat & humidity in March in Delaware (Dover)0
No heat & humidity in April in Delaware (Dover)0
No heat & humidity in May in Delaware (Dover)0
Moderate heat & humidity in June in Delaware (Dover)M
High heat & humidity in July in Delaware (Dover)H
Moderate heat & humidity in August in Delaware (Dover)M
Low heat & humidity in September in Delaware (Dover)L
No heat & humidity in October in Delaware (Dover)0
No heat & humidity in November in Delaware (Dover)0
No heat & humidity in December in Delaware (Dover)0

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

Going to Delaware? Find the best month to visit Delaware based on the weather.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Check climate guides for Delaware showing average temperature, rainfall & sunshine figures for each month of the year. The climate guide shown above is for Dover.

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More about Delaware

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The climate guide for Delaware, represented by Dover, 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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