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| Climatological Information for Seattle, United States |
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| Location of weather station : 47.4 N, 122.3 W, altitude : 123 m |
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Data
Period |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Mean Maximum
Temperature (deg. C) |
1961-1990 |
7.2 |
9.7 |
11.5 |
14.0 |
17.7 |
21.1 |
24.0 |
24.0 |
20.7 |
15.4 |
10.3 |
7.3 |
Mean Temperature
(deg. C) |
1961-1990 |
4.5 |
6.4 |
7.6 |
9.6 |
12.8 |
16.1 |
18.4 |
18.6 |
15.9 |
11.6 |
7.4 |
4.7 |
Mean Minimum
Temperature (deg. C) |
1961-1990 |
1.8 |
3.0 |
3.6 |
5.1 |
7.9 |
11.1 |
12.9 |
13.2 |
11.1 |
7.7 |
4.5 |
2.1 |
| Rainfall Amount (mm) |
1961-1990 |
136.7 |
101.3 |
89.9 |
59.2 |
43.2 |
38.1 |
19.3 |
29.0 |
47.8 |
82.0 |
148.1 |
150.1 |
| Days with Rain* |
1961-1990 |
15.5 |
13.1 |
13.7 |
10.6 |
7.8 |
6.0 |
3.4 |
4.5 |
6.8 |
10.0 |
15.3 |
15.8 |
Mean Daily Sunshine
Duration (hours) |
1961-1990 |
2.3 |
3.9 |
5.8 |
6.9 |
8.2 |
8.9 |
10.1 |
9.1 |
7.4 |
4.6 |
2.4 |
1.7 |
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| * denotes number of days with at least 1.0 mm of rainfall |
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