Weather on May 15
Bellevue, WA
55 Years of Data
Avg High
67°F
Avg Low
48°F
Warmest
1973
75°F avg
Coldest
1974
47°F avg
About This Date
May 15th in Bellevue, WA typically brings mild spring weather, with average highs around 67°F and lows near 48°F. Over 55 years of records, the warmest May 15th was in 1973 (75°F average), while the coldest was 1974 (47°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 36% of May 15th dates historically, with the wettest May 15th recording 1.57" of rain. The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Bellevue, WA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 47° | 53° | 0.25" | — |
| 2024 | 76° | 49° | 62° | — | — |
| 2023 | 85° | 61° | 73° | — | — |
| 2022 | 61° | 52° | 56° | 1.52" | — |
| 2021 | 73° | 49° | 61° | — | — |
| 2020 | 69° | 52° | 60° | 0.05" | — |
| 2019 | 70° | 52° | 61° | 0.2" | — |
| 2018 | 71° | 55° | 63° | — | — |
| 2017 | 55° | 47° | 51° | 0.89" | — |
| 2016 | 56° | 53° | 54° | 0.28" | — |
| 2015 | 68° | 47° | 57° | — | — |
| 2014 | 81° | 55° | 68° | — | — |
| 2013 | 64° | 45° | 54° | 0.1" | — |
| 2012 | 74° | 50° | 62° | — | — |
| 2011 | 53° | 49° | 51° | 1.32" | — |
| 2010 | 70° | 47° | 58° | — | — |
| 2009 | 65° | 42° | 53° | — | — |
| 2008 | 67° | 53° | 60° | — | — |
| 2007 | 84° | 46° | 65° | — | — |
| 2006 | 75° | 50° | 63° | — | — |
| 2005 | 64° | 53° | 59° | 0.89" | — |
| 2004 | 60° | 47° | 53° | — | — |
| 2003 | 56° | 43° | 49° | — | — |
| 2002 | 62° | 39° | 51° | — | — |
| 2001 | 62° | 48° | 55° | 1.57" | — |
| 2000 | 70° | 50° | 60° | — | — |
| 1999 | 58° | 46° | 52° | 0.1" | — |
| 1998 | 59° | 46° | 53° | — | — |
| 1997 | 75° | 55° | 65° | — | — |
| 1996 | 57° | 47° | 52° | 0.05" | — |
| 1995 | 76° | 54° | 65° | — | — |
| 1994 | 57° | 48° | 53° | — | — |
| 1993 | 71° | 54° | 62° | — | — |
| 1992 | 67° | 47° | 57° | — | — |
| 1991 | 67° | 45° | 56° | — | — |
| 1990 | 58° | 47° | 52° | — | — |
| 1989 | 74° | 48° | 61° | — | — |
| 1988 | 76° | 51° | 63° | 0.61" | — |
| 1987 | 61° | 47° | 54° | — | — |
| 1986 | 62° | 42° | 52° | — | — |
| 1985 | 67° | 45° | 56° | — | — |
| 1984 | 61° | 49° | 55° | — | — |
| 1983 | 58° | 42° | 50° | 1.27" | — |
| 1982 | 72° | 44° | 58° | — | — |
| 1981 | 62° | 44° | 53° | — | — |
| 1980 | 63° | 46° | 54° | 0.23" | — |
| 1979 | 75° | 49° | 62° | — | — |
| 1978 | 59° | 47° | 53° | 0.58" | — |
| 1977 | 62° | 46° | 54° | 0.03" | — |
| 1976 | 66° | 48° | 57° | — | — |
| 1975 | 72° | 50° | 61° | 0.03" | — |
| 1974coldest | 54° | 41° | 47° | 0.46" | — |
| 1973warmest | 92° | 58° | 75° | — | — |
| 1972 | 74° | 53° | 63° | — | — |
| 1971 | 60° | 45° | 52° | 0.15" | — |
55 years of data from SEATTLE UNIV OF WASHIN