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Straddling two major climate zones, the southeastern corner of Pennsylvania has the warmest climate. A portion of Greater Philadelphia lies at the southernmost tip of the humid continental climate zone, with the city proper being in the humid subtropical climate zone. Still, Philadelphia features colder, snowier winters than most locations with ...
The worst ever 24-hour rain total in the city was reported at the Pittsburgh International Airport. [51] [52] September 1–2, 2006 – Tropical Depression Ernesto caused 2.5 to 3 in (40 to 75 mm) of rain in parts of the south-western portion of the state. 2 deaths were reported in the state. [53] [54]
The Johnstown Flood was the worst flood to hit the U.S. in the 19th century, and to date, the worst to strike Pennsylvania. [ 27 ] 1,600 homes were destroyed, $17 million in property damage levied (approx. $550 million in 2022), and 4 square miles (10 km 2 ) of downtown Johnstown were completely destroyed.
Winter Storm Blair is set to wring out a stripe of snow and ice across the Midwest, Ohio Valley, Appalachians and mid-Atlantic. While the storm's snow will be the focus of many headlines, its ...
Annual precipitation and air quality were given a 2x weighted ranking. Then, we averaged the total rankings for each city to determine the best and worst cities for getting outside. DepositPhotos.com
The EPA reports that rising temperatures and shifting rainfall patterns are likely to increase the intensity of both floods and droughts. Average annual precipitation in Pennsylvania has increased 5 to 10 percent in the last century, and precipitation from extremely heavy storms has increased 70 percent in the Northeast since 1958.
The Johnstown flood of 1977 was a major flood which began on the night of July 19, 1977, when heavy rainfall caused widespread flash flooding in Cambria County, Pennsylvania, United States, including the city of Johnstown and the Conemaugh Valley. On July 19, a deluge of rain hit the Johnstown area during the night.
Flash flooding struck Prospect Park, Pennsylvania – near Philadelphia – on September 23, amid warnings of heavy rainfall throughout the state.Flash flood warnings were issued by the National ...