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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

1/11
Sunday
Light freezing rain
34.5°F/25.7°F
1/12
Monday
Cloudy
35.6°F/24.4°F
1/13
Tuesday
Partly Cloudy
38.5°F/27.5°F
1/14
Wednesday
Patchy rain nearby
42°F/31.9°F
1/15
Thursday
Heavy snow
33.5°F/17.5°F
1/16
Friday
Light freezing rain
26.9°F/10.8°F
1/17
Saturday
Moderate snow
32.9°F/8.1°F