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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 9.7–20.2°C, 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 25.1–28.0°C, 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 17.0–23.7°C, 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 3.1–6.2°C, 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. 15.8°C / Annual rainfall: approx. 468 mm / Summer humidity: 40%–60% / Rainiest month: June
Armstrong County monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
3.1°C
13.7
February
5.6°C
8.7
March
9.7°C
18.3
April
14.8°C
27.7
May
20.2°C
88.3
June
25.1°C
98.3
July
28°C
55.7
August
27.4°C
33.7
September
23.7°C
23
October
17°C
27.7
November
8.9°C
57
December
6.2°C
16.3
Armstrong County weather for the next seven days
12/16
Tuesday
Sunny
18.6°C/0.1°C
12/17
Wednesday
Sunny
17°C/0.7°C
12/18
Thursday
Sunny
11.5°C/3.1°C
12/19
Friday
Sunny
21.9°C/1.4°C
12/20
Saturday
Sunny
25.5°C/12°C
12/21
Sunday
Sunny
13.3°C/3.6°C
12/22
Monday
Sunny
25.6°C/5.9°C
