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Revision as of 18:03, 14 November 2012 by Subtropical-man (talk | contribs) (Undid revision 523017648 by 149.137.102.220 (talk))(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)| Climate data for Seattle (SeaTac Airport), 1981–2010 normals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 64 (18) |
70 (21) |
78 (26) |
85 (29) |
93 (34) |
96 (36) |
103 (39) |
99 (37) |
98 (37) |
89 (32) |
74 (23) |
64 (18) |
103 (39) |
| Mean daily maximum °F (°C) | 46.8 (8.2) |
49.6 (9.8) |
53.4 (11.9) |
58.1 (14.5) |
64.3 (17.9) |
69.6 (20.9) |
75.5 (24.2) |
75.9 (24.4) |
70.1 (21.2) |
59.3 (15.2) |
50.5 (10.3) |
45.3 (7.4) |
59.9 (15.5) |
| Mean daily minimum °F (°C) | 36.8 (2.7) |
36.9 (2.7) |
39.3 (4.1) |
42.2 (5.7) |
47.3 (8.5) |
51.9 (11.1) |
55.6 (13.1) |
55.9 (13.3) |
52.1 (11.2) |
45.8 (7.7) |
40.0 (4.4) |
35.6 (2.0) |
44.9 (7.2) |
| Record low °F (°C) | 0 (−18) |
1 (−17) |
11 (−12) |
29 (−2) |
28 (−2) |
38 (3) |
43 (6) |
44 (7) |
35 (2) |
28 (−2) |
6 (−14) |
6 (−14) |
0 (−18) |
| Average precipitation inches (mm) | 5.56 (141) |
3.50 (89) |
3.72 (94) |
2.71 (69) |
1.93 (49) |
1.56 (40) |
.70 (18) |
.88 (22) |
1.45 (37) |
3.48 (88) |
6.57 (167) |
5.35 (136) |
37.41 (950) |
| Average snowfall inches (cm) | 1.3 (3.3) |
1.4 (3.6) |
.7 (1.8) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1.1 (2.8) |
1.5 (3.8) |
5.9 (15) |
| Average precipitation days (≥ 0.01 in) | 18.2 | 14.7 | 16.9 | 14.3 | 12.0 | 9.1 | 5.0 | 4.8 | 7.9 | 13.1 | 18.4 | 17.6 | 152.0 |
| Average snowy days (≥ 0.1 in) | 1.1 | .7 | .5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .4 | 1.4 | 4.1 |
| Mean monthly sunshine hours | 71.3 | 110.2 | 179.8 | 207.0 | 254.2 | 267.0 | 313.1 | 282.1 | 222.0 | 142 | 72.0 | 52.7 | 2,174 |
| Source 1: NOAA , Beautiful Seattle | |||||||||||||
| Source 2: HKO (sun only, 1961−1990) | |||||||||||||
References
These references will appear in the article, but this list appears only on this page.- "NowData - NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2011-12-15.
- "Seattle Normal/Record Temperature". BeautifulSeattle.com. Retrieved 2011-09-29.
- "Climatological Normals of Seattle". Hong Kong Observatory. Retrieved 2010-05-11.