Weather on September 8
Seattle, WA
55 Years of Data
Avg High
72°F
Avg Low
56°F
Warmest
2020
73°F avg
Coldest
1983
56°F avg
About This Date
September 8th in Seattle, WA typically brings pleasant fall weather, with average highs around 72°F and lows near 56°F. Over 54 years of records, the warmest September 8th was in 2020 (73°F average), while the coldest was 1983 (56°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 28% of September 8th dates historically, with the wettest September 8th recording 0.71" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for September 8th in Seattle, WA? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 60° | 68° | — | — |
| 2024 | 77° | 61° | 69° | — | — |
| 2023 | 72° | 52° | 62° | — | — |
| 2022 | 71° | 52° | 61° | — | — |
| 2021 | 80° | 63° | 71° | — | — |
| 2020warmest | 82° | 64° | 73° | — | — |
| 2019 | 74° | 59° | 66° | — | — |
| 2018 | 71° | 58° | 64° | 0.1" | — |
| 2017 | 72° | 62° | 67° | — | — |
| 2016 | 72° | 57° | 64° | — | — |
| 2015 | 76° | 59° | 67° | — | — |
| 2014 | 72° | 60° | 66° | — | — |
| 2013 | 80° | 60° | 70° | 0.03" | — |
| 2012 | 80° | 57° | 69° | — | — |
| 2011 | 83° | 59° | 71° | — | — |
| 2010 | 65° | 56° | 60° | 0.56" | — |
| 2009 | 70° | 51° | 60° | 0.03" | — |
| 2008 | 76° | 58° | 67° | — | — |
| 2007 | 71° | 54° | 62° | — | — |
| 2006 | 71° | 52° | 61° | — | — |
| 2005 | 77° | 56° | 66° | — | — |
| 2004 | 73° | 54° | 63° | 0.15" | — |
| 2003 | 71° | 56° | 63° | 0.05" | — |
| 2002 | 64° | 48° | 56° | 0.03" | — |
| 2001 | 75° | 51° | 63° | — | — |
| 2000 | 67° | 53° | 60° | — | — |
| 1999 | 81° | 54° | 67° | — | — |
| 1997 | 81° | 55° | 68° | — | — |
| 1996 | 74° | 59° | 66° | — | — |
| 1995 | 72° | 57° | 64° | — | — |
| 1994 | 68° | 57° | 63° | 0.58" | — |
| 1993 | 83° | 58° | 70° | — | — |
| 1992 | 65° | 51° | 58° | 0.43" | — |
| 1991 | 65° | 51° | 58° | — | — |
| 1990 | 68° | 61° | 64° | — | — |
| 1989 | 80° | 57° | 69° | — | — |
| 1988 | 71° | 52° | 61° | — | — |
| 1987 | 71° | 55° | 63° | — | — |
| 1986 | 69° | 58° | 63° | — | — |
| 1985 | 63° | 52° | 57° | 0.71" | — |
| 1984 | 69° | 59° | 64° | — | — |
| 1983coldest | 64° | 49° | 56° | 0.08" | — |
| 1982 | 73° | 60° | 67° | — | — |
| 1981 | 82° | 61° | 71° | — | — |
| 1980 | 75° | 52° | 63° | — | — |
| 1979 | 70° | 57° | 63° | 0.33" | — |
| 1978 | 66° | 51° | 59° | 0.66" | — |
| 1977 | 67° | 52° | 59° | — | — |
| 1976 | 70° | 50° | 60° | — | — |
| 1975 | 68° | 55° | 62° | — | — |
| 1974 | 68° | 60° | 64° | 0.48" | — |
| 1973 | 70° | 51° | 60° | — | — |
| 1972 | 60° | 54° | 57° | 0.53" | — |
| 1971 | 67° | 53° | 60° | — | — |
54 years of data from SEATTLE URBAN SITE