Philadelphia
3 to 30°C
temperature
2758 hours
sunshine per day
264 mm
rain
239 days
dry
115 days
rain
11 days
snow

Climate of Philadelphia

Philadelphia has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Philadelphia is 17° degrees and there is about 264 mm of rain in a year. It is dry for 212 days a year with an average humidity of 76% and an UV-index of 4.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 3°C and 30°C
  • Night:the average nighttime temperature is between -4°C and 20°C
  • Sea temperature: the sea temperature is between 4°C and 35°C
  • Rain: it rains 115 days and there is a total of approximately 264 mm rainfall
  • Snow: it snows an average of 11 days per year
  • Sun hours: throughout the year there are 2758 sun hours
Maximum temperature: between 3°C and 30°C
Warmest month: 30°C in July
Coldest month: 3°C in January
Night temperature: between -4°C and 20°C
Sea temperature: between 4°C and 35°C
Dry days: 239 days
Days with rain: 115 days
Days with snow: 11 days
Total rain sum: 264 mm
Hours of sunshine: 2758 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Philadelphia.

Precipitation graph

This graph shows the average amount of rainfall per month for Philadelphia.

Climate table of Philadelphia

In this climate table you can see at a glance what the average weather per month is for Philadelphia. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Philadelphia might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 3 5 10 16 22 26 30 29 25 18 12 7
Night temp. (°C) -4 -3 1 7 12 17 20 19 16 10 4 0
Water temp. (°C) 4 11 8 18 29 35 32 32 22 19 12 8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 17 17 20 18 23 25 27 28 22 20 24 23
Days with rain 7 6 10 11 13 12 13 11 10 8 7 7
Days with snow 4 3 2 - - - - - - - - 2
Dry days 20 19 19 19 18 18 18 20 20 23 23 22
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 5 6 9 9 10 11 11 9 6 5 5
Wind force (Bft) 3 3 3 3 2 2 2 2 2 2 3 3
UV-index 2 2 3 4 6 6 6 6 5 3 2 2

Best time to visit Philadelphia

The best time to visit Philadelphia in the state of Pennsylvania is from May through October. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Philadelphia is 30°C in July and the lowest is 3°C in January. The maximum water temperature is 35°C and the lowest water temperature is 4°C.

Climate of Philadelphia by month

What is the average climate in a given month for Philadelphia? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Philadelphia weather experiences

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