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Pennsylvania

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Pennsylvania Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Pennsylvania year round climate

  • Spring (March–May): Average 41–60°F, mild climate, but cold snaps are still possible in early spring, moderate rainfall. Common activities: Outdoor walks, flower viewing. Recommended clothing: Light jacket, long-sleeved shirts, warmer clothing for mornings and evenings.
  • Summer (June–August): Average 68–73°F, hot and humid, occasional showers. Common activities: Swimming, camping, outdoor barbecues. Recommended clothing: Light and breathable clothing, short sleeves, shorts.
  • Autumn (September–November): Average 51–62°F, comfortable and pleasant climate, colorful autumn leaves are a highlight of autumn, rainfall gradually decreases. Common activities: Viewing maple leaves, hiking. Recommended clothing: Comfortable long-sleeved shirts, light jackets.
  • Winter (December–February): Average -33–42°F, cold, high probability of snowfall, significant snow accumulation in some areas. Common activities: Skiing, indoor activities. Recommended clothing: Warm coats, hats, gloves, scarves.

Pennsylvania climatological average

Annual average temperature: approx. 51.8°F / Annual rainfall: approx. 1151 mm / Summer humidity: 65%–75% / Rainiest month: April

Pennsylvania monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
30.4°F
97.1
February
34.5°F
75.4
March
41°F
87.8
April
50.9°F
144.8
May
60.6°F
99
June
68.2°F
90.3
July
73.2°F
88
August
70°F
135.7
September
63.1°F
86.1
October
52.7°F
44.1
November
43°F
71.7
December
33.4°F
131.3

Pennsylvania weather for the next seven days

5/22
Friday
Sunny
72.1°F/47.3°F
5/23
Saturday
Heavy rain
45.5°F/43.5°F
5/24
Sunday
Patchy rain nearby
61.7°F/47.5°F
5/25
Monday
Heavy rain
68.8°F/55.8°F
5/26
Tuesday
Patchy rain nearby
79.6°F/54.8°F
5/27
Wednesday
Patchy rain nearby
69.4°F/49.6°F
5/28
Thursday
Sunny
75.3°F/44.2°F