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Washington Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Washington year round climate

  • Spring (March–May): Average 10.3–19.6°C, mild climate with moderate rainfall and occasional showers. Common activities: Visiting museums, city walks, flower viewing. Recommended clothing: Comfortable jackets, long-sleeved shirts or light jackets, adjust clothing according to temperature.
  • Summer (June–August): Average 24.8–27.9°C, hot and humid, with the most rainfall in July. Common activities: Outdoor activities, visiting national parks, enjoying city life. Recommended clothing: Lightweight and breathable clothing, short-sleeved shirts, shorts, rain gear.
  • Autumn (September–November): Average 16.3–22.7°C, pleasant and cool and dry weather, ideal for viewing autumn leaves. Common activities: Hiking, visiting wineries, enjoying autumn cuisine. Recommended clothing: Comfortable long-sleeved shirts, light jackets or cardigans.
  • Winter (December–February): Average 4.4–7.0°C, cold and humid, with possible snowfall. Common activities: Indoor activities, museum visits, shopping. Recommended clothing: Warm coats, hats, scarves, gloves.

Washington climatological average

Annual average temperature: approx. 16°C / Annual rainfall: approx. 989 mm / Summer humidity: 65%–75% / Rainiest month: July

Washington monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
4.4°C
94.7
February
7°C
49.3
March
10.3°C
78.3
April
15.5°C
80.3
May
19.6°C
101.7
June
24.8°C
52.3
July
27.9°C
160.3
August
26.4°C
90.7
September
22.7°C
69.7
October
16.3°C
42
November
11.4°C
59
December
5.8°C
111.3

Washington weather for the next seven days

12/18
Thursday
Patchy rain nearby
6.4°C/-1.8°C
12/19
Friday
Heavy rain
12.8°C/-1.2°C
12/20
Saturday
Sunny
5.4°C/-3.1°C
12/21
Sunday
Sunny
10.4°C/1.3°C
12/22
Monday
Partly Cloudy
2°C/-2°C
12/23
Tuesday
Partly Cloudy
2.6°C/-1.8°C
12/24
Wednesday
Partly Cloudy
9°C/2°C