Weather on August 31
Renton, WA
55 Years of Data
Avg High
74°F
Avg Low
55°F
Warmest
2022
76°F avg
Coldest
1973
52°F avg
About This Date
August 31st in Renton, WA typically brings pleasant summer weather, with average highs around 74°F and lows near 55°F. Over 55 years of records, the warmest August 31st was in 2022 (76°F average), while the coldest was 1973 (52°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 31st dates historically, with the wettest August 31st recording 1.32" 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 August 31st in Renton, WA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 59° | 67° | — | — |
| 2024 | 85° | 58° | 71° | — | — |
| 2023 | 70° | 60° | 65° | — | — |
| 2022warmest | 88° | 64° | 76° | — | — |
| 2021 | 68° | 52° | 60° | — | — |
| 2020 | 71° | 55° | 63° | — | — |
| 2019 | 79° | 62° | 70° | — | — |
| 2018 | 71° | 61° | 66° | — | — |
| 2017 | 75° | 63° | 69° | 0.03" | — |
| 2016 | 69° | 56° | 62° | 0.15" | — |
| 2015 | 69° | 55° | 62° | — | — |
| 2014 | 71° | 57° | 64° | 0.18" | — |
| 2013 | 80° | 55° | 68° | — | — |
| 2012 | 73° | 53° | 63° | — | — |
| 2011 | 68° | 54° | 61° | — | — |
| 2010 | 61° | 53° | 57° | 1.07" | — |
| 2009 | 72° | 57° | 64° | — | — |
| 2008 | 65° | 51° | 58° | — | — |
| 2007 | 69° | 59° | 64° | — | — |
| 2006 | 72° | 48° | 60° | — | — |
| 2005 | 76° | 57° | 66° | — | — |
| 2004 | 78° | 58° | 68° | — | — |
| 2003 | 78° | 57° | 68° | — | — |
| 2002 | 78° | 54° | 66° | — | — |
| 2001 | 75° | 62° | 69° | — | — |
| 2000 | 68° | 56° | 62° | — | — |
| 1999 | 68° | 56° | 62° | — | — |
| 1998 | 86° | 56° | 71° | — | — |
| 1997 | 77° | 55° | 66° | — | — |
| 1996 | 69° | 57° | 63° | 0.05" | — |
| 1995 | 77° | 51° | 64° | — | — |
| 1994 | 76° | 54° | 65° | — | — |
| 1993 | 80° | 52° | 66° | — | — |
| 1992 | 77° | 58° | 67° | — | — |
| 1991 | 69° | 58° | 63° | 1.32" | — |
| 1990 | 74° | 58° | 66° | 0.2" | — |
| 1989 | 69° | 54° | 61° | — | — |
| 1988 | 76° | 46° | 61° | — | — |
| 1987 | 91° | 50° | 71° | — | — |
| 1986 | 70° | 54° | 62° | — | — |
| 1985 | 74° | 45° | 59° | 0.08" | — |
| 1984 | 74° | 52° | 63° | — | — |
| 1983 | 73° | 56° | 64° | 0.05" | — |
| 1982 | 74° | 58° | 66° | — | — |
| 1981 | 73° | 45° | 59° | 0.3" | — |
| 1980 | 69° | 55° | 62° | 0.89" | — |
| 1979 | 76° | 57° | 66° | — | — |
| 1978 | 73° | 60° | 67° | 0.53" | — |
| 1977 | 71° | 51° | 61° | — | — |
| 1976 | 78° | 48° | 63° | — | — |
| 1975 | 66° | 52° | 59° | 0.05" | — |
| 1974 | 79° | 58° | 68° | — | — |
| 1973coldest | 62° | 43° | 52° | — | — |
| 1972 | 77° | 43° | 60° | — | — |
| 1971 | 72° | 55° | 63° | 0.28" | — |
55 years of data from RENTON MUNI AP