Annual
Climatology: Seattle, WA (SEA)
Elev: 121.9 m Lat: 47o 28'N Long: 122o 19'W
Figure 1: Average Temperatures and Precipitation 1971-2000. (NCDC Data)
Annual
Climatology: Seattle, WA (SEA)
Elev: 121.9 m Lat: 47o 28'N Long: 122o 19'W
Figure 1: Average Temperatures and Precipitation 1971-2000. (NCDC Data)
|
Month |
Daily Max |
Daily Min |
Mean |
Maximum Daily Temperature |
Minimum Daily Temperature |
|
January |
7.7 |
2.2 |
4.9 |
17.8 |
-17.8 |
|
February |
9.7 |
2.9 |
6.3 |
21.1 |
-17.2 |
|
March |
11.8 |
3.9 |
7.9 |
23.9 |
-11.7 |
|
April |
14.6 |
5.6 |
10.1 |
29.4 |
-1.7 |
|
May |
18.0 |
8.4 |
13.2 |
33.9 |
-2.2 |
|
June |
20.9 |
10.9 |
15.9 |
35.6 |
3.3 |
|
July |
24.1 |
12.9 |
18.5 |
37.8 |
6.1 |
|
August |
24.2 |
13.2 |
18.7 |
37.2 |
6.7 |
|
September |
21.2 |
11.1 |
16.2 |
36.7 |
1.7 |
|
October |
15.4 |
7.6 |
11.5 |
31.7 |
-2.2 |
|
November |
10.3 |
4.4 |
7.3 |
23.3 |
-14.4 |
|
December |
7.5 |
2.2 |
4.8 |
17.8 |
-14.4 |
|
Annual |
15.4 |
7.1 |
11.3 |
37.8 |
-17.8 |
|
Month |
Mean |
Median |
Extreme |
Year |
Snow* |
|
January |
130.3 |
124.5 |
239.0 |
1990 |
61.0 |
|
February |
106.2 |
111.5 |
212.1 |
1996 |
33.0 |
|
March |
95.3 |
94.0 |
207.0 |
1997 |
15.2 |
|
April |
65.8 |
60.7 |
165.9 |
1991 |
2.5 |
|
May |
45.2 |
42.2 |
94.0 |
1977 |
0.0 |
|
June |
37.8 |
35.1 |
77.5 |
1990 |
0.0 |
|
July |
20.1 |
16.8 |
60.7 |
1983 |
0.0 |
|
August |
25.9 |
16.5 |
116.6 |
1975 |
0.0 |
|
September |
41.4 |
37.1 |
151.1 |
1978 |
0.0 |
|
October |
81.0 |
75.9 |
196.9 |
1975 |
2.5 |
|
November |
149.9 |
135.1 |
295.1 |
1998 |
27.9 |
|
December |
142.7 |
134.9 |
301.0 |
1979 |
63.5 |
|
Annual |
941.6 |
902.0 |
|
|
205.7 |
* Snowfall totals represent
mean snowfall 1971-2000
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