Average Temperatures and Rainfall for Pennsylvania

Average annual temperatures for Pennsylvania (12°C/54°F) are slightly below the average for United States (13°C/55°F).

Average annual rainfall for Pennsylvania (1,303mm/51 inches) is significantly above the average for United States (1,039mm/41 inches).

What is the warmest or hottest month in Pennsylvania?

July is the hottest or warmest month in Pennsylvania, with an average maximum temperate of 30°C/86°F.

What is the coldest or coolest month in Pennsylvania?

January is the coolest or coldest month in Pennsylvania, with an average minimum temperate of -6°C/21°F.

What is the most rainy or wettest month in Pennsylvania?

July is the wettest or most rainy month in Pennsylvania, with an average rainfall of 140mm/6 inches.

What is the least rainy or driest month in Pennsylvania?

November is the driest or least rainy month in Pennsylvania, with an average rainfall of 78mm/3 inches.

What is the warmest or hottest place in Pennsylvania?

Philadelphia is the hottest or warmest place in Pennsylvania, with an average maximum temperate of 14°C/57°F.

What is the coldest place in Pennsylvania?

Erie is the coldest place in Pennsylvania, with an average maximum temperate of 11°C/52°F.

What is the most rainy or wettest place in Pennsylvania?

Abington is the most rainy or wettest place in Pennsylvania, with an average annual rainfall of 1,499mm/59 inches.

What is the least rainy or driest place in Pennsylvania?

Scranton is the least rainy or driest place in Pennsylvania, with an average annual rainfall of 1,145mm/45 inches.

Average Monthly Temperatures
Average Maximum Temperature Average Minimum Temperature
Average Monthly Rainfall
PlaceMin TempMax TempAvg TempRainfall
Abington 7 18 12 1,499
Allentown 6 18 12 1,422
Bensalem 7 18 12 1,499
Bethlehem 6 18 12 1,422
Center City 9 19 14 1,347
Erie 7 15 11 1,271
Lancaster 6 18 12 1,305
Levittown 6 19 12 1,395
Philadelphia 9 19 14 1,347
Pittsburgh 6 17 12 1,185
Reading 6 17 12 1,303
Scranton 6 16 11 1,145