Pennsylvania Annual Rainfall and Climate Data, see below for individual cities
Pennsylvania city precipitation totals
Avg Annual Precip
Avg Annual Snow
|Avg # days of Precip||
Avg # thunderstorm days
|Avg # hail days||Avg # severe thunderstorm watches per year||Avg # tornado watches per year||# of tornadoes reported in county, 1960-2010|
Pennsylvania Precipitation Records
- Driest location ranked by lowest annual average precipitation: Wellsboro, northern Pennsylvania,33.18"
- Wettest location ranked by highest annual average precipitation: Chalk Hill, southwestern Pennsylvania, 54.04"
- Snowiest location ranked by highest annual average snowfall: Corry, northwestern Pennsylvania, 121.6"
- State precipitation record for 24 hours - Smethport, northern Pennsylvania, 7/17/1942, 34.50"
- State precipitation record for 1 year - Mount Pocono, eastern Pennsylvania, 1952, 81.64"
- State snowfall record for 24 hours - Seven Springs, southwestern Pennsylvania, 3/13-14/1993, 40.0"
- State snow record for 1 season - Blue Knob, south-central Pennsylvania, 1890-1891, 225.0"
- On July 17, 1942 Smethport, Pennsylvania received 34.50 inches of rain in 24 hours, the 5th highest
24-hour total in U.S. history
- On July 24, 1947, the most powerful lightning strike ever recorded in the United States struck the
Cathedral of Learning of the University of Pittsburgh. The bolt discharged approximately 345,000 amps
This was enough electricity to briefly light 600,000 60W light bulbs
- February 2010 was one for the record books in Pittsburgh. The city broke it's daily snowfall record with 11.4 inches
on February, 5. The city then established its snowiest month on record in February by beating the previous record
set in January 1978 by 11 inches with 51.5 inches. To finalize the season, the city established a new snowiest season
record with 78.7 inches, this beat the previous record in 1995-1996 by 13.2 inches
Data sources: National Climatic Data Center, Severe thunderstorm / tornado watch data period is 1999 - 2008, NOAA Storm Prediction Center, Tornado climate data - NOAA Storm Prediction Center, State lightning flash density average - 1997-2011, Vaisala