Rainiest Cities in Pennsylvania

Philadelphia is the rainiest city in Pennsylvania, with 50.7 in of precipitation in an average year. Every Pennsylvania city with a reporting NOAA station, ranked.

Average annual precipitation, ranked

3 cities
#CityAverage annual precipitation
1Philadelphia50.7 inwettest August
2Allentown47.4 inwettest July
3Pittsburgh38.3 inwettest July

Thirty-year normals and records from each city's NOAA GHCN-Daily station, computed 2026-08-30. Cities with a population of 100,000 or more and a reporting station. Each city name opens its climate page.

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Normals and records: NOAA GHCN-Daily stations. Sunshine from ERA5 reanalysis. City locations: GeoNames (CC BY 4.0).