Weather on March 9
Seattle, WA
55 Years of Data
Avg High
53°F
Avg Low
40°F
Warmest
1984
56°F avg
Coldest
2009
36°F avg
About This Date
March 9th in Seattle, WA typically brings cool spring weather, with average highs around 53°F and lows near 40°F. Over 56 years of records, the warmest March 9th was in 1984 (56°F average), while the coldest was 2009 (36°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 64% of March 9th dates historically, with the wettest March 9th recording 3.78" of rain. The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
Planning for March 9th in Seattle, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 47° | 38° | 42° | — | — |
| 2025 | 55° | 39° | 47° | 0.97" | — |
| 2024 | 55° | 41° | 48° | 0.08" | — |
| 2023 | 50° | 31° | 41° | — | — |
| 2022 | 49° | 34° | 41° | — | — |
| 2021 | 54° | 34° | 44° | — | — |
| 2020 | 51° | 30° | 41° | — | — |
| 2019 | 47° | 27° | 37° | — | — |
| 2018 | 51° | 39° | 45° | — | — |
| 2017 | 51° | 39° | 45° | 1.35" | — |
| 2016 | 55° | 43° | 49° | 2.41" | — |
| 2015 | 57° | 41° | 49° | — | — |
| 2014 | 61° | 50° | 55° | 0.66" | — |
| 2013 | 56° | 32° | 44° | — | — |
| 2012 | 50° | 42° | 46° | 0.43" | — |
| 2011 | 54° | 42° | 48° | 3.78" | — |
| 2010 | 49° | 29° | 39° | 0.03" | — |
| 2009coldest | 40° | 32° | 36° | 0.08" | — |
| 2008 | 58° | 39° | 48° | — | — |
| 2007 | 53° | 44° | 49° | 0.08" | — |
| 2006 | 43° | 36° | 39° | 0.18" | — |
| 2005 | 59° | 49° | 54° | — | — |
| 2004 | 53° | 48° | 51° | 0.33" | — |
| 2003 | 54° | 42° | 48° | 0.91" | — |
| 2002 | 52° | 36° | 44° | 0.2" | — |
| 2001 | 51° | 38° | 44° | 0.05" | — |
| 2000 | 52° | 39° | 45° | 0.1" | — |
| 1999 | 51° | 36° | 43° | — | — |
| 1998 | 47° | 42° | 44° | 0.84" | — |
| 1997 | 52° | 41° | 46° | 0.43" | — |
| 1996 | 61° | 48° | 54° | 0.33" | — |
| 1995 | 65° | 46° | 55° | 1.3" | — |
| 1994 | 62° | 37° | 50° | 0.41" | — |
| 1993 | 57° | 36° | 46° | — | — |
| 1992 | 60° | 38° | 49° | — | — |
| 1991 | 46° | 36° | 41° | 0.25" | — |
| 1990 | 46° | 39° | 43° | 1.96" | — |
| 1989 | 58° | 40° | 49° | 1.19" | — |
| 1988 | 49° | 37° | 43° | 0.84" | — |
| 1987 | 56° | 44° | 50° | 1.07" | — |
| 1986 | 59° | 45° | 52° | 0.18" | — |
| 1985 | 56° | 35° | 45° | — | — |
| 1984warmest | 65° | 47° | 56° | — | — |
| 1983 | 60° | 50° | 55° | 1.02" | — |
| 1982 | 55° | 47° | 51° | 0.25" | — |
| 1981 | 65° | 36° | 50° | — | — |
| 1980 | 51° | 45° | 48° | — | — |
| 1979 | 64° | 36° | 50° | — | — |
| 1978 | 55° | 40° | 47° | 0.15" | — |
| 1977 | 49° | 38° | 43° | 0.51" | — |
| 1976 | 45° | 41° | 43° | — | — |
| 1975 | 48° | 38° | 43° | 0.03" | — |
| 1974 | 54° | 39° | 46° | 1.47" | — |
| 1973 | 51° | 44° | 48° | 0.15" | — |
| 1972 | 52° | 48° | 50° | 0.74" | — |
| 1971 | 44° | 37° | 41° | 0.43" | — |
56 years of data from SEATTLE URBAN SITE