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Armstrong County

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Armstrong County Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Armstrong County year round climate

  • Spring (March–May): Average 49–68°F, mild climate transitioning from cool to warm, rainfall gradually increasing. Common activities: Outdoor walks, picnics. Recommended clothing: Light jacket, long-sleeved shirts.
  • Summer (June–August): Average 77–82°F, hot and dry, with the most rainfall in June, gradually decreasing thereafter. Common activities: Swimming, camping. Recommended clothing: Light and breathable clothing, hat, sunscreen.
  • Autumn (September–November): Average 62–74°F, pleasant and comfortable climate, relatively even rainfall. Common activities: Hiking, viewing autumn leaves (if applicable). Recommended clothing: Long-sleeved shirts, light jacket.
  • Winter (December–February): Average 37–43°F, cold and dry, with less rainfall. Common activities: Indoor activities. Recommended clothing: Warm coat, hat, scarf, gloves.

Armstrong County climatological average

Annual average temperature: approx. 60.4°F / Annual rainfall: approx. 468 mm / Summer humidity: 40%–60% / Rainiest month: June

Armstrong County monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
37.6°F
13.7
February
42.1°F
8.7
March
49.5°F
18.3
April
58.6°F
27.7
May
68.4°F
88.3
June
77.2°F
98.3
July
82.4°F
55.7
August
81.3°F
33.7
September
74.7°F
23
October
62.6°F
27.7
November
48°F
57
December
43.2°F
16.3

Armstrong County weather for the next seven days

8/2
Sunday
Sunny
97.5°F/66.4°F
8/3
Monday
Sunny
103.3°F/69.1°F
8/4
Tuesday
Sunny
102.8°F/76.6°F
8/5
Wednesday
Sunny
101.3°F/74.7°F
8/6
Thursday
Sunny
98.9°F/74°F
8/7
Friday
Patchy rain nearby
91.5°F/69.5°F
8/8
Saturday
Sunny
93.2°F/68.9°F