The Pennsylvania State Climatologist is a service to the Commonwealth by the College of Earth and Mineral Sciences and Penn State.

The

following information includes observed average precipitation and temperature for the 10 climate regions across Pennsylvania on a monthly basis for the period 1899 through present. Regional snowfall data is now available for the period 1950 through 2004. Refer to the map below to determine each region's approximate boundary.

Region 1	Region 2
Average Precipitation	Average Precipitation
Average Snowfall (yearly basis)	Average Snowfall (yearly basis)
Average Snowfall (seasonal basis)	Average Snowfall (seasonal basis)
Average Temperature	Average Temperature
Mean Precipitation & Departure from Mean	Mean Precipitation & Departure from Mean
Mean Snowfall & Departure from Mean	Mean Snowfall & Departure from Mean
Mean Temperature & Departure from Mean	Mean Temperature & Departure from Mean
Region 3	Region 4
Average Precipitation	Average Precipitation
Average Snowfall (yearly basis)	Average Snowfall (yearly basis)
Average Snowfall (seasonal basis)	Average Snowfall (seasonal basis)
Average Temperature	Average Temperature
Mean Precipitation & Departure from Mean	Mean Precipitation & Departure from Mean
Mean Snowfall & Departure from Mean	Mean Snowfall & Departure from Mean
Mean Temperature & Departure from Mean	Mean Temperature & Departure from Mean
Region 5	Region 6
Average Precipitation	Average Precipitation
Average Snowfall (yearly basis)	Average Snowfall (yearly basis)
Average Snowfall (seasonal basis)	Average Snowfall (seasonal basis)
Average Temperature	Average Temperature
Mean Precipitation & Departure from Mean	Mean Precipitation & Departure from Mean
Mean Snowfall & Departure from Mean	Mean Snowfall & Departure from Mean
Mean Temperature & Departure from Mean	Mean Temperature & Departure from Mean
Region 7	Region 8
Average Precipitation	Average Precipitation
Average Snowfall (yearly basis)	Average Snowfall (yearly basis)
Average Snowfall (seasonal basis)	Average Snowfall (seasonal basis)
Average Temperature	Average Temperature
Mean Precipitation & Departure from Mean	Mean Precipitation & Departure from Mean
Mean Snowfall & Departure from Mean	Mean Snowfall & Departure from Mean
Mean Temperature & Departure from Mean	Mean Temperature & Departure from Mean
Region 9	Region 10
Average Precipitation	Average Precipitation
Average Snowfall (yearly basis)	Average Snowfall (yearly basis)
Average Snowfall (seasonal basis)	Average Snowfall (seasonal basis)
Average Temperature	Average Temperature
Mean Precipitation & Departure from Mean	Mean Precipitation & Departure from Mean
Mean Snowfall & Departure from Mean	Mean Snowfall & Departure from Mean
Mean Temperature & Departure from Mean	Mean Temperature & Departure from Mean

Susquehanna River Basin	Out of State Divisional Data
New York Division 1 Precipitation New York Division 1 Average Temperature	New York Division 2 Precipitation New York Division 2 Average Temperature
Maryland Division 6 Precipitation Maryland Division 6 Average Temperature

Mailing Address:

Pennsylvania State Climatologist
503 Walker Building
University Park, PA 16802

Online:

Data Request Form

E-mail:

psc@meteo.psu.edu

Phone:

814-865-8732