Typical Seattle September Weather 1991–2020 |
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---|---|---|
Average daily high | 70.7 °F | |
Average daily low | 53.1 °F | |
Average monthly precipitation | 1.6 inches | |
Average monthly snow | none | |
Daily chance of precipitation | 27.8% | |
Daily chance of snow | 0% |
Seattle September Weather Records 1894–2024 |
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---|---|---|
Highest temperature | 98 °F | September 2, 1988 |
Lowest temperature | 35 °F | September 27, 1972 |
Highest daily low | 69 °F | September 2, 1974 |
Lowest daily high | 49 °F | September 26, 1948 |
Hottest average high temperature | 76.4 °F | 1967 |
Coldest average high temperature | 62.8 °F | 1914 |
Most daily precipitation | 1.7 inches | September 28, 2013 |
Most monthly precipitation | 6.2 inches | 2013 |
Most daily snow | none | - |
Most monthly snow | none | - |
Day | Average (°F) | Record (°F) | ||
---|---|---|---|---|
High | Low | High | Low | |
September 1 | 74.2 | 55.3 | 91 | 46 |
September 2 | 73.9 | 55.1 | 98 | 41 |
September 3 | 73.6 | 55.0 | 92 | 45 |
September 4 | 73.3 | 54.9 | 88 | 42 |
September 5 | 73.1 | 54.8 | 88 | 44 |
September 6 | 72.8 | 54.6 | 90 | 43 |
September 7 | 72.6 | 54.5 | 94 | 45 |
September 8 | 72.4 | 54.4 | 86 | 42 |
September 9 | 72.2 | 54.2 | 89 | 40 |
September 10 | 72.0 | 54.1 | 92 | 39 |
September 11 | 71.7 | 53.9 | 93 | 40 |
September 12 | 71.4 | 53.7 | 87 | 44 |
September 13 | 71.2 | 53.5 | 87 | 39 |
September 14 | 71.1 | 53.4 | 93 | 42 |
September 15 | 70.9 | 53.2 | 93 | 42 |
September 16 | 70.6 | 53.1 | 91 | 44 |
September 17 | 70.3 | 52.9 | 85 | 42 |
September 18 | 69.9 | 52.6 | 85 | 41 |
September 19 | 69.5 | 52.5 | 86 | 40 |
September 20 | 69.2 | 52.3 | 88 | 40 |
September 21 | 68.9 | 52.0 | 88 | 36 |
September 22 | 68.6 | 51.8 | 92 | 37 |
September 23 | 68.3 | 51.7 | 85 | 40 |
September 24 | 67.9 | 51.5 | 89 | 38 |
September 25 | 67.5 | 51.3 | 85 | 36 |
September 26 | 67.0 | 51.0 | 82 | 39 |
September 27 | 66.6 | 50.8 | 89 | 35 |
September 28 | 66.2 | 50.6 | 86 | 38 |
September 29 | 65.9 | 50.3 | 81 | 37 |
September 30 | 65.6 | 50.1 | 82 | 36 |