Philadelphia has a warm and humid climate with four distinct seasons, with hot, humid summers and frequent thunderstorms, and cold winters with occasional snow. The weather is relatively pleasant in spring and autumn, with the best seasons being from April to September.

Philadelphia, PA Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Highest Temperature 5 7 11 18 23 28 31 30 26 20 13 8 Lowest Temperature -3 -2 2 7 13 18 21 20 17 10 4 0 Precipitation 77 74 101 88 87 103 114 111 113 90 73 98 　New York Highest Temperature 3 5 10 16 22 27 30 29 25 19 12 6 Lowest Temperature -4 -3 2 7 12 17 20 20 16 10 5 -1 Precipitation 87 83 104 107 112 93 111 102 99 90 114 99 Precipitation number of days 11 10 12 11 12 10 10 10 8 8 9 10

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The time difference of Philadelphia is UTC-5 UTC-4 for daylight saving time Winter time Daylight savings time UTC 0:00 1:00 5:00 1:00 2:00 6:00 2:00 3:00 7:00 3:00 4:00 8:00 4:00 5:00 9:00 5:00 6:00 10:00 6:00 7:00 11:00 7:00 8:00 12:00 8:00 9:00 13:00 9:00 10:00 14:00 10:00 11:00 15:00 11:00 12:00 16:00 12:00 13:00 17:00 13:00 14:00 18:00 14:00 15:00 19:00 15:00 16:00 20:00 16:00 17:00 21:00 17:00 18:00 22:00 18:00 19:00 23:00 19:00 20:00 0:00 20:00 21:00 1:00 21:00 22:00 2:00 22:00 23:00 3:00 23:00 0:00 4:00