Weather on July 21
Renton, WA
55 Years of Data
Avg High
80°F
Avg Low
57°F
Warmest
1994
82°F avg
Coldest
1973
61°F avg
About This Date
July 21st in Renton, WA typically brings warm summer weather, with average highs around 80°F and lows near 57°F. Over 55 years of records, the warmest July 21st was in 1994 (82°F average), while the coldest was 1973 (61°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 9% of July 21st dates historically, with the wettest July 21st recording 0.56" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Renton, WA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 57° | 68° | — | — |
| 2024 | 79° | 63° | 71° | — | — |
| 2023 | 79° | 62° | 70° | — | — |
| 2022 | 83° | 61° | 72° | — | — |
| 2021 | 73° | 58° | 65° | — | — |
| 2020 | 82° | 65° | 73° | — | — |
| 2019 | 90° | 55° | 72° | — | — |
| 2018 | 79° | 54° | 66° | — | — |
| 2017 | 80° | 56° | 68° | — | — |
| 2016 | 84° | 62° | 73° | — | — |
| 2015 | 75° | 61° | 68° | 0.03" | — |
| 2014 | 75° | 58° | 66° | — | — |
| 2013 | 76° | 56° | 66° | — | — |
| 2012 | 77° | 62° | 70° | — | — |
| 2011 | 71° | 58° | 64° | — | — |
| 2010 | 80° | 54° | 67° | — | — |
| 2009 | 89° | 60° | 75° | — | — |
| 2008 | 77° | 55° | 66° | — | — |
| 2007 | 77° | 60° | 69° | 0.56" | — |
| 2006 | 97° | 62° | 79° | — | — |
| 2005 | 81° | 58° | 69° | — | — |
| 2004 | 80° | 61° | 70° | — | — |
| 2003 | 87° | 65° | 76° | — | — |
| 2002 | 82° | 55° | 69° | — | — |
| 2001 | 68° | 58° | 63° | 0.03" | — |
| 2000 | 83° | 60° | 71° | — | — |
| 1999 | 72° | 58° | 65° | — | — |
| 1998 | 85° | 57° | 71° | — | — |
| 1997 | 74° | 58° | 66° | — | — |
| 1996 | 76° | 56° | 66° | — | — |
| 1995 | 79° | 62° | 70° | — | — |
| 1994warmest | 98° | 66° | 82° | — | — |
| 1993 | 69° | 55° | 62° | — | — |
| 1992 | 70° | 59° | 64° | — | — |
| 1991 | 76° | 58° | 67° | — | — |
| 1990 | 94° | 61° | 77° | — | — |
| 1989 | 75° | 54° | 64° | — | — |
| 1988 | 94° | 54° | 74° | — | — |
| 1987 | 82° | 52° | 67° | — | — |
| 1986 | 84° | 47° | 65° | — | — |
| 1985 | 90° | 54° | 72° | — | — |
| 1984 | 73° | 48° | 61° | — | — |
| 1983 | 80° | 52° | 66° | — | — |
| 1982 | 69° | 53° | 61° | 0.03" | — |
| 1981 | 70° | 56° | 63° | — | — |
| 1980 | 88° | 57° | 72° | — | — |
| 1979 | 83° | 58° | 70° | — | — |
| 1978 | 94° | 51° | 72° | — | — |
| 1977 | 82° | 51° | 67° | — | — |
| 1976 | 70° | 53° | 61° | — | — |
| 1975 | 79° | 45° | 62° | — | — |
| 1974 | 79° | 44° | 61° | — | — |
| 1973coldest | 70° | 53° | 61° | 0.05" | — |
| 1972 | 83° | 51° | 67° | — | — |
| 1971 | 90° | 57° | 73° | — | — |
55 years of data from RENTON MUNI AP