Weather on May 15
Renton, WA
55 Years of Data
Avg High
67°F
Avg Low
48°F
Warmest
1989
76°F avg
Coldest
1974
46°F avg
About This Date
May 15th in Renton, 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 1989 (76°F average), while the coldest was 1974 (46°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 15th dates historically, with the wettest May 15th recording 1.45" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Renton, WA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 57° | 46° | 52° | 0.03" | — |
| 2024 | 76° | 52° | 64° | — | — |
| 2023 | 91° | 61° | 76° | — | — |
| 2022 | 61° | 52° | 56° | 0.91" | — |
| 2021 | 74° | 49° | 61° | — | — |
| 2020 | 69° | 53° | 61° | — | — |
| 2019 | 69° | 52° | 60° | — | — |
| 2018 | 72° | 56° | 64° | — | — |
| 2017 | 55° | 47° | 51° | 0.51" | — |
| 2016 | 56° | 53° | 54° | 0.1" | — |
| 2015 | 68° | 49° | 58° | — | — |
| 2014 | 81° | 56° | 68° | — | — |
| 2013 | 65° | 47° | 56° | 0.1" | — |
| 2012 | 74° | 51° | 62° | — | — |
| 2011 | 53° | 49° | 51° | 1.45" | — |
| 2010 | 71° | 48° | 60° | — | — |
| 2009 | 66° | 44° | 55° | — | — |
| 2008 | 70° | 53° | 61° | — | — |
| 2007 | 84° | 50° | 67° | — | — |
| 2006 | 80° | 53° | 67° | — | — |
| 2005 | 63° | 55° | 59° | 0.79" | — |
| 2004 | 60° | 50° | 55° | — | — |
| 2003 | 57° | 43° | 50° | 0.05" | — |
| 2002 | 61° | 42° | 51° | — | — |
| 2001 | 64° | 50° | 57° | 1.4" | — |
| 2000 | 74° | 53° | 63° | — | — |
| 1999 | 58° | 46° | 52° | 0.1" | — |
| 1998 | 59° | 46° | 53° | 0.03" | — |
| 1997 | 78° | 54° | 66° | — | — |
| 1996 | 64° | 48° | 56° | 0.03" | — |
| 1995 | 78° | 49° | 63° | — | — |
| 1994 | 63° | 48° | 55° | 0.66" | — |
| 1993 | 69° | 52° | 60° | — | — |
| 1992 | 68° | 46° | 57° | — | — |
| 1991 | 69° | 44° | 57° | — | — |
| 1990 | 57° | 43° | 50° | — | — |
| 1989warmest | 77° | 75° | 76° | — | — |
| 1988 | 73° | 50° | 62° | 0.33" | — |
| 1987 | 60° | 48° | 54° | — | — |
| 1986 | 65° | 36° | 50° | — | — |
| 1985 | 72° | 34° | 53° | — | — |
| 1984 | 61° | 45° | 53° | 0.1" | — |
| 1983 | 57° | 43° | 50° | 0.66" | — |
| 1982 | 71° | 38° | 54° | — | — |
| 1981 | 63° | 36° | 49° | — | — |
| 1980 | 60° | 45° | 52° | — | — |
| 1979 | 71° | — | — | — | — |
| 1978 | 59° | 47° | 53° | 0.08" | — |
| 1977 | 63° | 42° | 52° | — | — |
| 1976 | 76° | 40° | 58° | — | — |
| 1975 | 65° | 48° | 56° | — | — |
| 1974coldest | 55° | 37° | 46° | — | — |
| 1973 | 81° | 52° | 66° | — | — |
| 1972 | 75° | 52° | 63° | 0.23" | — |
| 1971 | 65° | 45° | 55° | 0.41" | — |
55 years of data from RENTON MUNI AP