Philadelphia, PA Weather & Climate Normals
Philadelphia's real weather, in one number
Philadelphia, PA scores 43/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Philadelphia's hottest and coldest months
Philadelphia's hottest month is Jul, averaging 80°F; its coldest is Jan, averaging 35°F, a 45.7°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Philadelphia
Philadelphia averages 50.69in of precipitation a year across roughly 122 days with measurable rain or snow, and 16.1in of snow a year.
Where Philadelphia ranks
Philadelphia ranks 3948 of 4876 US cities in this dataset for comfort score, and 155 of 193 within PA. About 1,573,916 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from PHILA FRANKLIN INST, PA US, 4.1 miles from Philadelphia, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure