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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 5–16°C, 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 20–23°C, hot and humid, occasional showers. Common activities: Swimming, camping, outdoor barbecues. Recommended clothing: Light and breathable clothing, short sleeves, shorts.
  • Autumn (September–November): Average 11–17°C, 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 -1–6°C, 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. 11°C / Annual rainfall: approx. 1151 mm / Summer humidity: 65%–75% / Rainiest month: April

Pennsylvania monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-0.9°C
97.1
February
1.4°C
75.4
March
5°C
87.8
April
10.5°C
144.8
May
15.9°C
99
June
20.1°C
90.3
July
22.9°C
88
August
21.1°C
135.7
September
17.3°C
86.1
October
11.5°C
44.1
November
6.1°C
71.7
December
0.8°C
131.3

Pennsylvania weather for the next seven days

5/28
Thursday
Sunny
19.9°C/7.4°C
5/29
Friday
Sunny
23.3°C/5.1°C
5/30
Saturday
Sunny
16.5°C/5.3°C
5/31
Sunday
Sunny
20.7°C/3.8°C
6/1
Monday
Patchy rain nearby
17.5°C/6.7°C
6/2
Tuesday
Moderate rain
11.7°C/9.8°C
6/3
Wednesday
Patchy rain nearby
15.8°C/9.8°C