시택 (워싱턴주)
기후

| Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 1월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 2월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 3월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 4월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 5월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 6월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 7월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 8월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 9월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 10월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 11월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 12월 | Seattle (SeaTac Airport), 1981–2010 normals, extremes 1894–present의 기후> 연간 |
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| 역대 최고 기온 °F (°C) | 67 (19) | 70 (21) | 79 (26) | 89 (32) | 93 (34) | 98 (37) | 103 (39) | 99 (37) | 98 (37) | 89 (32) | 74 (23) | 66 (19) | 103 (39) |
| 월평균 최고 기온 °F (°C) | 56.4 (13.6) | 60.3 (15.7) | 66.0 (18.9) | 74.7 (23.7) | 81.5 (27.5) | 85.5 (29.7) | 90.6 (32.6) | 88.8 (31.6) | 84.6 (29.2) | 72.2 (22.3) | 60.7 (15.9) | 55.9 (13.3) | 93.8 (34.3) |
| 일평균 최고 기온 °F (°C) | 47.2 (8.4) | 49.9 (9.9) | 53.7 (12.1) | 58.5 (14.7) | 64.7 (18.2) | 69.9 (21.1) | 75.8 (24.3) | 76.3 (24.6) | 70.5 (21.4) | 59.7 (15.4) | 50.9 (10.5) | 45.7 (7.6) | 60.3 (15.7) |
| 일일 평균 기온 °F (°C) | 42.0 (5.6) | 43.4 (6.3) | 46.5 (8.1) | 50.3 (10.2) | 56.0 (13.3) | 60.9 (16.1) | 65.7 (18.7) | 66.1 (18.9) | 61.3 (16.3) | 52.8 (11.6) | 45.4 (7.4) | 40.6 (4.8) | 52.6 (11.4) |
| 일평균 최저 기온 °F (°C) | 36.9 (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) | 45.0 (7.2) |
| 월평균 최저 기온 °F (°C) | 25.4 (−3.7) | 25.9 (−3.4) | 31.3 (−0.4) | 35.0 (1.7) | 39.7 (4.3) | 46.2 (7.9) | 50.6 (10.3) | 50.7 (10.4) | 44.6 (7.0) | 35.7 (2.1) | 28.7 (−1.8) | 24.0 (−4.4) | 19.5 (−6.9) |
| 역대 최저 기온 °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) |
| 평균 강수량 인치 (mm) | 5.57 (141) | 3.50 (89) | 3.72 (94) | 2.71 (69) | 1.94 (49) | 1.57 (40) | 0.70 (18) | 0.88 (22) | 1.50 (38) | 3.48 (88) | 6.57 (167) | 5.35 (136) | 37.49 (952) |
| 평균 강설량 인치 (cm) | 1.4 (3.6) | 1.7 (4.3) | 0.8 (2.0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1.2 (3.0) | 1.7 (4.3) | 6.8 (17) |
| 평균 강수일수 (≥ 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 |
| 평균 강설일수 (≥ 0.1 in) | 1.3 | 0.9 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 1.6 | 4.6 |
| 평균 상대 습도 (%) | 78.0 | 75.2 | 73.6 | 71.4 | 68.9 | 67.1 | 65.4 | 68.2 | 73.2 | 78.6 | 79.8 | 80.1 | 73.3 |
| 평균 월간 일조시간 | 69.8 | 108.8 | 178.4 | 207.3 | 253.7 | 268.4 | 312.0 | 281.4 | 221.7 | 142.6 | 72.7 | 52.9 | 2,169.7 |
| 가능 일조율 | 25 | 38 | 48 | 51 | 54 | 56 | 65 | 64 | 59 | 42 | 26 | 20 | 49 |
| 평균 자외선 지수 | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 | 4 |
출처: NOAA (relative humidity and sun 1961–1990) and Weather Atlas