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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
12/15
Monday
Sunny
64°F/24.3°F
12/16
Tuesday
Sunny
65.1°F/33.1°F
12/17
Wednesday
Sunny
60.4°F/32.5°F
12/18
Thursday
Sunny
52.7°F/41°F
12/19
Friday
Sunny
74.2°F/36.4°F
12/20
Saturday
Sunny
74.3°F/51.5°F
12/21
Sunday
Sunny
61.9°F/36.1°F
