Pennsylvania Climate

How Pennsylvania's latest month ranks since 1895, the normals at its main weather stations, and the climate page for every town.

How Pennsylvania is running

NOAA NCEI Climate at a Glance, from the nClimGrid analysis of every station, updated early each month. A rank of 1 is the highest or lowest of all years since 1895.

August 2026 in Pennsylvania: 69.7°F (+0.2 °F against 1991-2020), the 42nd warmest in 132 years on record.

August 2026 in Pennsylvania: 5.53 in (+1.51 in against 1991-2020), the 17th wettest in 132 years on record.

January to August 2026 in Pennsylvania: 51.2°F (+0.3 °F against 1991-2020), the 24th warmest in 132 years on record.

January to August 2026 in Pennsylvania: 30.62 in (+0.54 in against 1991-2020), the 42nd wettest in 132 years on record.

Warmest August: 73.4°F in 2016
Coolest August: 63.2°F in 1927
Wettest August: 8.51 in in 1955
Driest August: 1.37 in in 1930

Every year since 1895

Main weather stations

Annual 1991-2020 normals at the first-order (airport and Weather Service) stations; freeze dates are the median for 32°F.

Station	Avg high	Avg low	Precipitation	Snowfall	Last freeze	First freeze
Allentown Intl AP	63.3°F	42.8°F	47.36 in	33.1 in	April 20	October 24
Altoona Blair CO AP	60.3°F	41.7°F	36.65 in		April 23	October 21
Avondale 2 N	61.9°F	42.8°F	47.14 in		April 19	October 26
Bradford Rgnl AP	55.8°F	35.9°F	41.86 in		May 18	October 1
Clearfield Lawrence AP	59.1°F	38.4°F	40.34 in		May 4	October 11
Doylestown AP	63.0°F	43.8°F	47.67 in		April 13	October 30
Dubois Jefferson CO AP	56.9°F	38.6°F	42.42 in		May 6	October 14
Erie Intl AP	58.8°F	42.7°F	42.98 in	104.3 in	April 26	November 4
Harrisburg Cptl Cy AP	64.7°F	45.7°F	40.98 in		April 9	November 1
Johnstown Cambria CO AP	57.2°F	40.6°F	41.26 in		April 29	October 21
Lancaster AP	63.8°F	42.8°F	42.06 in		April 18	October 25
Middletown Harrisburg Intl AP	63.6°F	45.0°F	44.23 in	29.9 in	April 9	November 2
Mt Pocono Mountains AP	54.8°F	36.9°F	50.22 in		May 6	October 8
Philadelphia Intl AP	65.2°F	47.3°F	44.11 in	23.1 in	April 2	November 10
Philadelphia Ne AP	65.6°F	47.2°F	45.00 in		April 4	November 7
Pittsburgh Allegheny CO AP	61.2°F	43.5°F	41.34 in		April 18	October 28
Pittsburgh Intl AP	61.1°F	42.5°F	39.61 in	44.1 in	April 23	October 23
Port Meadville AP	57.3°F	39.9°F	41.42 in		April 30	October 23
Pottstown Limerick AP	61.4°F	42.5°F	45.34 in		April 20	October 23
Reading Spaatz Fld	63.4°F	44.1°F	45.21 in		April 14	October 29
Selinsgrove Penn Vly AP	61.5°F	40.7°F	40.91 in		April 27	October 16
Wilkes-Barre Intl AP	61.0°F	41.6°F	38.72 in	45.1 in	April 23	October 20
Williamsport	61.1°F	41.4°F	43.52 in	35.8 in	April 24	October 23
York AP	63.3°F	41.4°F	42.12 in		April 27	October 18

Frost dates at every station in Pennsylvania

Counties

Towns

Sources

Rankings: NOAA NCEI Climate at a Glance. Normals: NOAA NCEI U.S. Climate Normals, 1991-2020. Both public domain.