Weather on March 21
Bellevue, WA
55 Years of Data
Avg High
55°F
Avg Low
40°F
Warmest
1978
56°F avg
Coldest
1994
39°F avg
About This Date
March 21st in Bellevue, WA typically brings cool spring weather, with average highs around 55°F and lows near 40°F. Over 56 years of records, the warmest March 21st was in 1978 (56°F average), while the coldest was 1994 (39°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 50% of March 21st dates historically, with the wettest March 21st recording 1.19" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Bellevue, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 55° | 42° | 49° | — | — |
| 2025 | 55° | 43° | 49° | 0.3" | — |
| 2024 | 60° | 46° | 53° | 0.41" | — |
| 2023 | 56° | 42° | 49° | 0.03" | — |
| 2022 | 51° | 42° | 47° | 1.17" | — |
| 2021 | 44° | 40° | 42° | 0.25" | — |
| 2020 | 56° | 38° | 47° | — | — |
| 2019 | 61° | 46° | 53° | — | — |
| 2018 | 60° | 34° | 47° | 0.25" | — |
| 2017 | 55° | 44° | 50° | 0.41" | — |
| 2016 | 55° | 45° | 50° | 0.56" | — |
| 2015 | 58° | 47° | 52° | 0.1" | — |
| 2014 | 52° | 36° | 44° | — | — |
| 2013 | 50° | 36° | 43° | 0.36" | — |
| 2012 | 51° | 37° | 44° | 0.1" | — |
| 2011 | 54° | 41° | 47° | — | — |
| 2010 | 57° | 46° | 52° | 0.1" | — |
| 2009 | 52° | 31° | 41° | — | — |
| 2008 | 51° | 36° | 43° | — | — |
| 2007 | 51° | 32° | 42° | — | — |
| 2006 | 52° | 41° | 46° | 0.03" | — |
| 2005 | 52° | 37° | 44° | 0.05" | — |
| 2004 | 65° | 44° | 54° | — | — |
| 2003 | 51° | 44° | 48° | 1.19" | — |
| 2002 | 52° | 35° | 43° | — | — |
| 2001 | 53° | 36° | 44° | — | — |
| 2000 | 57° | 40° | 48° | — | — |
| 1999 | 59° | 46° | 53° | 0.33" | — |
| 1998 | 53° | 42° | 48° | 0.51" | — |
| 1997 | 56° | 35° | 45° | — | — |
| 1996 | 57° | 39° | 48° | 0.28" | — |
| 1995 | 49° | 36° | 42° | 0.25" | — |
| 1994coldest | 44° | 34° | 39° | 0.46" | — |
| 1993 | 60° | 45° | 52° | 0.15" | — |
| 1992 | 66° | 40° | 53° | — | — |
| 1991 | 52° | 39° | 45° | 0.08" | — |
| 1990 | 58° | 42° | 50° | — | — |
| 1989 | 52° | 44° | 48° | 0.18" | — |
| 1988 | 54° | 42° | 48° | — | — |
| 1987 | 58° | 40° | 49° | — | — |
| 1986 | 55° | 45° | 50° | 0.84" | — |
| 1985 | 58° | 36° | 47° | 0.48" | — |
| 1984 | 55° | 46° | 51° | 0.03" | — |
| 1983 | 63° | 45° | 54° | — | — |
| 1982 | 58° | 32° | 45° | — | — |
| 1981 | 65° | 44° | 54° | — | — |
| 1980 | 55° | 44° | 50° | 0.28" | — |
| 1979 | 64° | 36° | 50° | — | — |
| 1978warmest | 67° | 46° | 56° | — | — |
| 1977 | 50° | 40° | 45° | — | — |
| 1976 | 54° | 41° | 47° | — | — |
| 1975 | 52° | 36° | 44° | 0.13" | — |
| 1974 | 59° | 35° | 47° | — | — |
| 1973 | 52° | 39° | 45° | — | — |
| 1972 | 58° | 44° | 51° | — | — |
| 1971 | 52° | 31° | 41° | — | — |
56 years of data from SEATTLE UNIV OF WASHIN