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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

6/17
Wednesday
Sunny
105.4°F/71.6°F
6/18
Thursday
Overcast
73.8°F/61.5°F
6/19
Friday
Patchy rain nearby
80.4°F/60.9°F
6/20
Saturday
Patchy rain nearby
95°F/66°F
6/21
Sunday
Patchy rain nearby
95.2°F/73.5°F
6/22
Monday
Moderate rain
68.9°F/65.4°F
6/23
Tuesday
Partly Cloudy
84°F/64°F