Weather on May 21
Bellevue, WA
55 Years of Data
Avg High
65°F
Avg Low
48°F
Warmest
1972
67°F avg
Coldest
1996
49°F avg
About This Date
May 21st in Bellevue, WA typically brings mild spring weather, with average highs around 65°F and lows near 48°F. Over 55 years of records, the warmest May 21st was in 1972 (67°F average), while the coldest was 1996 (49°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 42% of May 21st dates historically, with the wettest May 21st recording 2.92" 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 May 21st in Bellevue, WA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 48° | 55° | 1.14" | — |
| 2024 | 53° | 48° | 51° | 1.4" | — |
| 2023 | 60° | 51° | 56° | 0.2" | — |
| 2022 | 66° | 44° | 55° | — | — |
| 2021 | 64° | 47° | 55° | — | — |
| 2020 | 59° | 47° | 53° | 2.92" | — |
| 2019 | 62° | 50° | 56° | — | — |
| 2018 | 71° | 52° | 61° | — | — |
| 2017 | 74° | 53° | 63° | — | — |
| 2016 | 58° | 52° | 55° | 0.3" | — |
| 2015 | 78° | 55° | 67° | — | — |
| 2014 | 68° | 51° | 60° | — | — |
| 2013 | 58° | 46° | 52° | 1.02" | — |
| 2012 | 61° | 53° | 57° | 1.47" | — |
| 2011 | 56° | 49° | 52° | 0.13" | — |
| 2010 | 57° | 45° | 51° | 0.84" | — |
| 2009 | 64° | 44° | 54° | — | — |
| 2008 | 56° | 47° | 51° | 0.18" | — |
| 2007 | 58° | 45° | 51° | 1.07" | — |
| 2006 | 71° | 47° | 59° | 0.1" | — |
| 2005 | 63° | 47° | 55° | 0.33" | — |
| 2004 | 62° | 53° | 58° | — | — |
| 2003 | 67° | 53° | 60° | — | — |
| 2002 | 58° | 50° | 54° | 0.38" | — |
| 2001 | 72° | 45° | 58° | — | — |
| 2000 | 67° | 53° | 60° | 0.23" | — |
| 1999 | 65° | 49° | 57° | — | — |
| 1998 | 57° | 50° | 54° | — | — |
| 1997 | 67° | 50° | 58° | 0.03" | — |
| 1996coldest | 53° | 45° | 49° | 0.2" | — |
| 1995 | 76° | 51° | 63° | — | — |
| 1994 | 68° | 51° | 60° | — | — |
| 1993 | 65° | 56° | 60° | 0.18" | — |
| 1992 | 64° | 42° | 53° | — | — |
| 1991 | 62° | 51° | 57° | 0.13" | — |
| 1990 | 69° | 46° | 58° | 0.46" | — |
| 1989 | 62° | 42° | 52° | — | — |
| 1988 | 85° | 50° | 67° | — | — |
| 1987 | 72° | 47° | 59° | — | — |
| 1986 | 59° | 45° | 52° | 0.74" | — |
| 1985 | 73° | 47° | 60° | — | — |
| 1984 | 60° | 46° | 53° | — | — |
| 1983 | 76° | 53° | 64° | — | — |
| 1982 | 76° | 48° | 62° | — | — |
| 1981 | 58° | 46° | 52° | 0.03" | — |
| 1980 | 60° | 42° | 51° | 0.51" | — |
| 1979 | 77° | 50° | 64° | — | — |
| 1978 | 79° | 48° | 63° | — | — |
| 1977 | 72° | 51° | 61° | — | — |
| 1976 | 64° | 46° | 55° | — | — |
| 1975 | 69° | 45° | 57° | — | — |
| 1974 | 63° | 43° | 53° | — | — |
| 1973 | 63° | 44° | 53° | — | — |
| 1972warmest | 80° | 54° | 67° | — | — |
| 1971 | 57° | 42° | 50° | — | — |
55 years of data from SEATTLE UNIV OF WASHIN