Philadelphia (PA) monthly weather averages

  • Average daytime temperature

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

    Philadelphia average temperature chart
    Average monthly temperatures in Philadelphia (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 3.5 5.4 11.2 17.1 23 27.7 30 29 25.2 19 12.8 6.5
    °F 38.4 41.7 52.1 62.7 73.3 81.8 86 84.3 77.4 66.1 55 43.7

    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 Philadelphia (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 85 74 93 96 101 95 115 114 91 77 89 90
    inches 3.3 2.9 3.7 3.8 4 3.7 4.5 4.5 3.6 3 3.5 3.6
    Rainy days 10 10 10 11 11 10 9 9 8 7 10 11
  • Average daily sunshine

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

    Average daily sunshine Philadelphia
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 5.6 6.2 7.1 7.9 8.5 9.6 9.5 9 7.9 7.1 5.6 5
  • Day / night temperatures

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

    Maximum and minimum daily temperatures in Philadelphia (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C -5.4 -4.2 0.4 5.1 10.8 15.9 18.8 18.1 13.9 7.4 2.8 -2.5
    Max °C 3.8 5.6 11.5 17.4 23.3 28 30.3 29.3 25.5 19.3 13.1 6.7
    Min °F 22.4 24.4 32.6 41.1 51.4 60.5 65.8 64.6 57 45.2 37 27.5
    Max °F 30.6 33.3 42.6 52.2 62.6 71.4 76.1 74.7 67.5 55.9 46.2 35.8
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Philadelphia 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 Philadelphia (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 18 18 19 19 17 15 14 14 14 15 17 17
    mph 11 11 12 12 10 9 9 9 9 9 11 11

    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 Philadelphia
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    67% 65% 63% 61% 66% 69% 70% 71% 73% 71% 69% 69%
Philadelphia

Other monthly averages

Philadelphia weather stats

Philadelphia weather statistics
Hottest month: July 30°C 86°F
Driest month: February 74mm 2.9ins
Sunniest month: August 9hrs
Coldest month: January 3.5°C 38.3°F
Wettest month: July 115mm 4.5ins
Warmest sea: August 23.4°C 74.1°F
Map showing location of Philadelphia (39.95234, -75.16379)

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