Washington Weather Information
Washington historical weather data by month.
Chance Of Sunshine
Annual chance of sunshine: 69.94%
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
54.84%
9
8
14
February
57.14%
8
8
12
March
56.67%
9
8
13
April
64.52%
10
10
11
May
70.00%
11
10
9
June
83.33%
17
8
5
July
83.87%
16
10
5
August
83.87%
16
10
5
September
86.21%
18
7
4
October
77.42%
17
7
7
November
63.33%
11
8
11
December
58.06%
10
8
13
Temperature
Rainfall
Sum Of Heating & Cooling Degree Days
