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Hottest temperature ever recorded: 111 F, Phoenixville, southeastern Pennsylvania, 7/10/1936 Coldest temperature ever recorded: -42 F, Smethport, northern Pennsylvania, 1/5/1904 Hottest location ranked by highest average annual temperature: Marcus Hook, southeastern Pennsylvania, 56.1 F Coldest location ranked by lowest average annual temperature: Pleasant Mount, northeastern Pennsylvania, 43.4 F
During the summer of 2010, Philadelphia set a new record for number of days with the temperature equal or greater
From June 29 - July 11, daily record highs in Philadelphia are 100 F or higher. During the summer months of June |