Weather on May 20
Renton, WA
55 Years of Data
Avg High
66°F
Avg Low
48°F
Warmest
2023
69°F avg
Coldest
1971
50°F avg
About This Date
May 20th in Renton, WA typically brings mild spring weather, with average highs around 66°F and lows near 48°F. Over 55 years of records, the warmest May 20th was in 2023 (69°F average), while the coldest was 1971 (50°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 20th dates historically, with the wettest May 20th recording 1.07" 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 20th in Renton, 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 | 62° | 50° | 56° | — | — |
| 2024 | 67° | 45° | 56° | — | — |
| 2023warmest | 78° | 59° | 69° | — | — |
| 2022 | 62° | 42° | 52° | — | — |
| 2021 | 63° | 46° | 54° | — | — |
| 2020 | 59° | 51° | 55° | — | — |
| 2019 | 59° | 51° | 55° | 0.05" | — |
| 2018 | 68° | 55° | 62° | — | — |
| 2017 | 72° | 56° | 64° | — | — |
| 2016 | 66° | 50° | 58° | — | — |
| 2015 | 73° | 53° | 63° | — | — |
| 2014 | 71° | 49° | 60° | — | — |
| 2013 | 68° | 50° | 59° | — | — |
| 2012 | 60° | 54° | 57° | 0.56" | — |
| 2011 | 70° | 44° | 57° | — | — |
| 2010 | 57° | 45° | 51° | 0.53" | — |
| 2009 | 62° | 47° | 54° | — | — |
| 2008 | 62° | 51° | 57° | 0.56" | — |
| 2007 | 56° | 46° | 51° | 0.91" | — |
| 2006 | 69° | 54° | 61° | 0.03" | — |
| 2005 | 61° | 49° | 55° | 0.48" | — |
| 2004 | 68° | 56° | 62° | — | — |
| 2003 | 60° | 47° | 53° | 0.13" | — |
| 2002 | 64° | 51° | 58° | 0.2" | — |
| 2001 | 67° | 46° | 56° | — | — |
| 2000 | 64° | 55° | 60° | — | — |
| 1999 | 64° | 44° | 54° | — | — |
| 1998 | 68° | 53° | 61° | — | — |
| 1997 | 75° | 48° | 62° | 0.33" | — |
| 1996 | 63° | 44° | 53° | — | — |
| 1995 | 74° | 45° | 59° | — | — |
| 1994 | 61° | 53° | 57° | 0.05" | — |
| 1993 | 72° | 52° | 62° | 0.36" | — |
| 1992 | 63° | 46° | 54° | — | — |
| 1991 | 63° | 53° | 58° | — | — |
| 1990 | 60° | 48° | 54° | 0.46" | — |
| 1989 | 66° | 40° | 53° | 0.03" | — |
| 1988 | 70° | 47° | 58° | — | — |
| 1987 | 68° | 38° | 53° | — | — |
| 1986 | 64° | 47° | 55° | 1.07" | — |
| 1985 | 68° | 52° | 60° | — | — |
| 1984 | 61° | 45° | 53° | 0.28" | — |
| 1983 | 73° | 50° | 62° | — | — |
| 1982 | 71° | 43° | 57° | — | — |
| 1981 | 60° | 45° | 52° | 0.13" | — |
| 1980 | 55° | 48° | 52° | 0.05" | — |
| 1979 | 74° | 39° | 56° | — | — |
| 1978 | 85° | 45° | 65° | — | — |
| 1977 | 72° | 48° | 60° | — | — |
| 1976 | 64° | 46° | 55° | — | — |
| 1975 | 68° | 37° | 53° | — | — |
| 1974 | 65° | 46° | 55° | — | — |
| 1973 | 63° | 40° | 51° | — | — |
| 1972 | 81° | 46° | 63° | — | — |
| 1971coldest | 57° | 42° | 50° | 0.1" | — |
55 years of data from RENTON MUNI AP