Weather on August 21
Gresham, OR
55 Years of Data
Avg High
80°F
Avg Low
55°F
Warmest
1991
80°F avg
Coldest
1974
59°F avg
About This Date
August 21st in Gresham, OR typically brings warm summer weather, with average highs around 80°F and lows near 55°F — a 25°F daily swing. Over 52 years of records, the warmest August 21st was in 1991 (80°F average), while the coldest was 1974 (59°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 21% of August 21st dates historically, with the wettest August 21st recording 1.4" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Gresham, OR? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 50° | 70° | — | — |
| 2024 | 78° | 65° | 71° | — | — |
| 2023 | 83° | 58° | 70° | — | — |
| 2022 | 91° | 57° | 74° | — | — |
| 2021 | 72° | 60° | 66° | — | — |
| 2020 | 79° | 62° | 70° | 0.41" | — |
| 2019 | 72° | 55° | 63° | 0.69" | — |
| 2018 | 93° | 58° | 75° | — | — |
| 2017 | 93° | 55° | 74° | — | — |
| 2016 | 82° | 58° | 70° | — | — |
| 2015 | 80° | 58° | 69° | — | — |
| 2014 | 79° | 50° | 64° | — | — |
| 2013 | 92° | 52° | 72° | — | — |
| 2012 | 77° | 58° | 67° | — | — |
| 2011 | 91° | 54° | 72° | — | — |
| 2010 | 71° | 48° | 60° | — | — |
| 2009 | 74° | 60° | 67° | — | — |
| 2008 | 72° | 55° | 63° | 0.2" | — |
| 2007 | 79° | 60° | 69° | — | — |
| 2006 | 78° | 54° | 66° | — | — |
| 2005 | 81° | 57° | 69° | — | — |
| 2004 | 83° | 59° | 71° | 0.91" | — |
| 2003 | 89° | 53° | 71° | — | — |
| 2002 | 68° | 58° | 63° | — | — |
| 2001 | 72° | 52° | 62° | 0.23" | — |
| 2000 | 84° | 49° | 66° | — | — |
| 1999 | 80° | 59° | 70° | — | — |
| 1998 | 76° | 59° | 67° | — | — |
| 1997 | 68° | 56° | 62° | 1.19" | — |
| 1996 | 77° | 50° | 64° | — | — |
| 1995 | 91° | 54° | 72° | — | — |
| 1994 | 79° | 60° | 69° | — | — |
| 1993 | 71° | 59° | 65° | — | — |
| 1991warmest | 97° | 63° | 80° | — | — |
| 1990 | 86° | 63° | 74° | 0.51" | — |
| 1989 | 78° | 45° | 61° | — | — |
| 1988 | 75° | 43° | 59° | — | — |
| 1987 | 78° | 45° | 61° | — | — |
| 1986 | 97° | 56° | 76° | — | — |
| 1985 | 73° | 45° | 59° | — | — |
| 1984 | 87° | 50° | 69° | — | — |
| 1981 | 74° | 52° | 63° | — | — |
| 1980 | 76° | 51° | 63° | — | — |
| 1979 | 75° | 57° | 66° | 1.4" | — |
| 1978 | 65° | 57° | 61° | 0.33" | — |
| 1977 | 71° | 60° | 66° | 0.05" | — |
| 1976 | 76° | 50° | 63° | — | — |
| 1975 | 73° | 56° | 64° | — | — |
| 1974coldest | 70° | 49° | 59° | — | — |
| 1973 | 78° | 46° | 62° | — | — |
| 1972 | 80° | 55° | 68° | — | — |
| 1971 | 82° | 61° | 71° | 0.3" | — |
52 years of data from PORTLAND TROUTDALE AP