Weather on March 15
Seattle, WA
55 Years of Data
About This Date
March 15th 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 15th was in 1972 (55°F average), while the coldest was 1977 (40°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 55% of March 15th dates historically, with the wettest March 15th recording 6.22" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 15th in Seattle, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 50° | 35° | 43° | — | — |
| 2025 | 49° | 40° | 44° | 1.96" | — |
| 2024 | 60° | 43° | 51° | — | — |
| 2023 | 51° | 39° | 45° | — | — |
| 2022 | 53° | 44° | 49° | 0.81" | — |
| 2021 | 48° | 36° | 42° | — | — |
| 2020 | 47° | 33° | 40° | — | — |
| 2019 | 60° | 39° | 50° | — | — |
| 2018 | 56° | 32° | 44° | — | — |
| 2017 | 52° | 45° | 48° | 1.8" | — |
| 2016 | 51° | 40° | 45° | — | — |
| 2015 | 54° | 46° | 50° | 6.22" | — |
| 2014 | 62° | 44° | 53° | 0.53" | — |
| 2013 | 60° | 49° | 54° | — | — |
| 2012 | 53° | 41° | 47° | 2.67" | — |
| 2011 | 56° | 43° | 49° | 1.22" | — |
| 2010 | 63° | 44° | 53° | 0.03" | — |
| 2009 | 47° | 34° | 40° | 1.19" | — |
| 2008 | 48° | 40° | 44° | 0.46" | — |
| 2007 | 48° | 34° | 41° | 0.03" | — |
| 2006 | 49° | 40° | 44° | 0.13" | — |
| 2005 | 57° | 42° | 50° | — | — |
| 2004 | 51° | 41° | 46° | — | — |
| 2003 | 60° | 45° | 52° | 0.13" | — |
| 2002 | 45° | 37° | 41° | 0.25" | — |
| 2001 | 47° | 41° | 44° | 0.66" | — |
| 2000 | 51° | 32° | 42° | 0.1" | — |
| 1999 | 47° | 39° | 43° | 0.05" | — |
| 1998 | 55° | 48° | 52° | 0.15" | — |
| 1997 | 52° | 34° | 43° | 2.49" | — |
| 1996 | 55° | 41° | 48° | — | — |
| 1995 | 55° | 41° | 48° | — | — |
| 1994 | 58° | 42° | 50° | 0.18" | — |
| 1993 | 54° | 40° | 47° | — | — |
| 1992 | 53° | 47° | 50° | 1.35" | — |
| 1991 | 53° | 37° | 45° | — | — |
| 1990 | 58° | 38° | 48° | — | — |
| 1989 | 49° | 34° | 41° | — | — |
| 1988 | 58° | 33° | 45° | — | — |
| 1987 | 57° | 43° | 50° | 0.46" | — |
| 1986 | 55° | 36° | 45° | — | — |
| 1985 | 56° | 35° | 45° | — | — |
| 1984 | 55° | 42° | 49° | 0.28" | — |
| 1983 | 56° | 41° | 48° | — | — |
| 1982 | 50° | 35° | 43° | 0.36" | — |
| 1981 | 53° | 46° | 50° | 1.42" | — |
| 1980 | 49° | 38° | 43° | 0.3" | — |
| 1979 | 52° | 45° | 48° | 0.79" | — |
| 1978 | 57° | 37° | 47° | — | — |
| 1977coldest | 45° | 36° | 40° | 0.38" | — |
| 1976 | 58° | 34° | 46° | — | — |
| 1975 | 46° | 42° | 44° | 0.81" | — |
| 1974 | 55° | 43° | 49° | 3.2" | — |
| 1973 | 56° | 44° | 50° | — | — |
| 1972warmest | 59° | 52° | 55° | 0.1" | — |
| 1971 | 50° | 37° | 44° | — | — |
Seattle, WA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Seattle, WA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Seattle, WA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Seattle, WA
Seattle, WA has no months that meet our "pleasant" threshold — every season has tradeoffs.