Seattle, WA Weather Data

Seattle, WA Current Weather Data

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Seattle, WA Historical Weather Trends

*Historical weather data collected from Boulevard Park, WA
Seattle, WA

Seattle, WA Chance of Sunshine

Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
22.58%
3
4
24
February
25.00%
3
4
21
March
29.03%
3
6
22
April
33.33%
3
7
20
May
41.94%
4
9
18
June
43.33%
5
8
17
July
64.52%
10
10
11
August
61.29%
9
10
12
September
56.67%
8
9
13
October
36.67%
4
7
19
November
20.69%
2
4
23
December
19.35%
2
4
25

Seattle, WA Historical Temperature

Month
Average
Max Average
Min Average
January
41.52°
46.78°
36.2°
February
43.57°
49.97°
37.1°
March
45.5°
52.32°
38.63°
April
49.52°
56.95°
42°
May
56°
64°
47.95°
June
61.21°
68.99°
53.39°
July
66.68°
76.03°
57.27°
August
66.9°
75.98°
57.76°
September
62.4°
70.63°
54.12°
October
52.77°
59.6°
45.88°
November
46.1°
52.08°
40.08°
December
40.24°
45.82°
34.6°

Seattle, WA Rainfall and Snowfall Average

Month
Average Rainfall
Average Snowfall
January
4.62 Inches
1.25 Inches
February
2.44 Inches
0.55 Inches
March
4.51 Inches
0.55 Inches
April
3.08 Inches
0 Inches
May
2.34 Inches
0 Inches
June
1.37 Inches
0 Inches
July
0.63 Inches
0 Inches
August
0.87 Inches
0 Inches
September
1.7 Inches
0 Inches
October
3.44 Inches
0 Inches
November
5.98 Inches
0.67 Inches
December
5.74 Inches
2.1 Inches

Seattle, WA Energy Demand

Month
Avg. Daily HDD (?)
Avg. Daily CDD (?)
Total
January
23.25
0
23.25
February
21.14
0
21.14
March
19.28
0
19.28
April
15.3
0
15.3
May
8.87
0.19
9.06
June
4.33
0.76
5.09
July
0.87
2.99
3.86
August
0.75
2.68
3.43
September
3.23
0.88
4.11
October
11.9
0
11.9
November
18.68
0
18.68
December
24.74
0
24.74