Philadelphia (PA) Weather and Climate: A Comprehensive Guide
The temperature in Philadelphia can vary greatly throughout the year.
The temperatures shift from very warm
to cold.
It is also known for its large amounts of rain/snowfall.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from very warm to chilly in Philadelphia. Typically, average maximum daytime temperatures range from a very warm 31°C in July to a chilly 5°C in the coolest month, January.
Nights are cooler, with lows often dropping to around -3°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Philadelphia has a relatively rain/snowy climate with high precipitation levels, averaging 1272 mm of rain/snowfall annually. Philadelphia offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between August (132 mm) and November (78 mm) is not too significant, making the climate enjoyable for visitors and residents alike.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Philadelphia serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.2 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average water temperature
The mean water temperature over the year ranges from 5°C in February to 25°C in August.
Water temperature over the year
Average humidity
The relative humidity is high throughout the year in Philadelphia.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 61%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
clear and no rain partly cloudy and no rain partly cloudy and snowForecast for Philadelphia (PA)
6 m/s
3 m/s
3 m/s
The best time of year to visit Philadelphia in the United States of America
Other facts from our historical weather data:The hottest season / summer takes place in June, July, August and September.
July has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 5°C.
August tops the wettest month list with 132 mm of rainfall.
November is the driest month with 78 mm of precipitation.
July is the sunniest month with an average of 275 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
