Wilmington (DE) monthly weather averages

  • Average daytime temperature

    The bar chart below shows the average monthly peak daytime temperatures at Wilmington

    Wilmington average temperature chart
    Average monthly temperatures in Wilmington (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 3.3 5.1 10.7 16.6 22.4 27.1 29.4 28.5 24.9 18.7 12.7 6.2
    °F 37.9 41.1 51.3 61.8 72.3 80.7 85 83.4 76.8 65.7 54.8 43.1

    Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

  • Average rainfall & rainy days

    The graph below shows the average rainfall and number of rainy days per month.

    Average monthly rainfall in Wilmington (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 83 75 95 95 104 96 114 98 97 80 92 94
    inches 3.3 2.9 3.7 3.7 4.1 3.8 4.5 3.9 3.8 3.1 3.6 3.7
    Rainy days 10 10 10 11 11 10 10 9 8 7 10 10
  • Average daily sunshine

    The bar chart below shows the average daily sunshine hours in Wilmington

    Average daily sunshine Wilmington
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 5.6 6.2 7.2 8 8.6 9.8 9.7 9.1 7.9 7.2 5.7 5
  • Day / night temperatures

    The graph below shows the daily range of temperatures for each month.

    Maximum and minimum daily temperatures in Wilmington (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C -5.5 -4.3 0.3 5.2 11 16.1 18.9 18.2 14.1 7.4 2.7 -2.6
    Max °C 3.5 5.3 11 16.9 22.7 27.4 29.7 28.8 25.2 19 12.9 6.4
    Min °F 22.1 24.3 32.5 41.3 51.7 60.9 66 64.8 57.3 45.3 36.9 27.3
    Max °F 30.2 32.9 42.1 51.8 62.2 71.1 75.7 74.3 67.3 55.8 46 35.4
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Wilmington in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 2.9 0.8 1.4 4.7 10 16.4 21.9 23.4 21.3 16.6 11.3 6.5
    °F 37.2 33.5 34.5 40.4 49.9 61.6 71.5 74.2 70.3 61.9 52.3 43.8
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Wilmington (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 17 18 18 18 16 14 13 13 13 14 16 17
    mph 11 11 11 11 10 9 8 8 8 9 10 10

    A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

  • Relative humidity

    The graph below shows the average relative humidity.

    Average relative humidity in Wilmington
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    67% 65% 62% 61% 66% 69% 70% 72% 73% 71% 69% 69%

Other monthly averages

Wilmington weather stats

Wilmington weather statistics
Hottest month: July 29.4°C 84.9°F
Driest month: February 75mm 3ins
Sunniest month: July 9.7hrs
Coldest month: January 3.3°C 37.9°F
Wettest month: July 114mm 4.5ins
Warmest sea: August 23.4°C 74.1°F
Map showing location of Wilmington (39.74595, -75.54659)

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