Weather on August 15
Gresham, OR
55 Years of Data
Avg High
83°F
Avg Low
57°F
Warmest
2023
84°F avg
Coldest
1979
61°F avg
About This Date
August 15th in Gresham, OR typically brings warm summer weather, with average highs around 83°F and lows near 57°F — a 26°F daily swing. Over 53 years of records, the warmest August 15th was in 2023 (84°F average), while the coldest was 1979 (61°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 13% of August 15th dates historically, with the wettest August 15th recording 1.57" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Gresham, OR? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 65° | 70° | 0.08" | — |
| 2024 | 80° | 60° | 70° | — | — |
| 2023warmest | 102° | 66° | 84° | — | — |
| 2022 | 91° | 56° | 73° | — | — |
| 2021 | 96° | 65° | 80° | — | — |
| 2020 | 88° | 50° | 69° | — | — |
| 2019 | 83° | 61° | 72° | — | — |
| 2018 | 89° | 60° | 75° | — | — |
| 2017 | 83° | 50° | 66° | — | — |
| 2016 | 88° | 56° | 72° | — | — |
| 2015 | 77° | 60° | 69° | 0.05" | — |
| 2014 | 82° | 63° | 72° | — | — |
| 2013 | 81° | 64° | 72° | — | — |
| 2012 | 97° | 61° | 79° | — | — |
| 2011 | 78° | 56° | 67° | — | — |
| 2010 | 97° | 60° | 78° | — | — |
| 2009 | 67° | 58° | 62° | — | — |
| 2008 | 102° | 61° | 81° | — | — |
| 2007 | 88° | 56° | 72° | — | — |
| 2006 | 73° | 55° | 64° | — | — |
| 2005 | 90° | 54° | 72° | — | — |
| 2004 | 85° | 60° | 72° | — | — |
| 2003 | 76° | 65° | 70° | — | — |
| 2002 | 89° | 53° | 71° | — | — |
| 2001 | 80° | 57° | 69° | — | — |
| 2000 | 76° | 51° | 63° | — | — |
| 1999 | 76° | 57° | 66° | — | — |
| 1998 | 75° | 62° | 69° | — | — |
| 1997 | 92° | 61° | 76° | — | — |
| 1996 | 90° | 57° | 73° | — | — |
| 1994 | 83° | 57° | 70° | — | — |
| 1993 | 71° | 56° | 63° | 0.13" | — |
| 1992 | 92° | 56° | 74° | — | — |
| 1991 | 92° | 60° | 76° | — | — |
| 1990 | 81° | 57° | 69° | — | — |
| 1988 | 74° | 54° | 64° | — | — |
| 1987 | 73° | 53° | 63° | — | — |
| 1986 | 93° | 58° | 75° | — | — |
| 1985 | 93° | 53° | 73° | — | — |
| 1984 | 82° | 51° | 67° | — | — |
| 1983 | 86° | 55° | 71° | — | — |
| 1982 | 74° | 50° | 62° | — | — |
| 1981 | 91° | 57° | 74° | — | — |
| 1980 | 73° | 51° | 62° | — | — |
| 1979coldest | 71° | 51° | 61° | 0.03" | — |
| 1978 | 74° | 55° | 64° | 1.57" | — |
| 1977 | 85° | 56° | 70° | — | — |
| 1976 | 72° | 56° | 64° | 1.27" | — |
| 1975 | 87° | 55° | 71° | — | — |
| 1974 | 77° | 51° | 64° | — | — |
| 1973 | 84° | 51° | 68° | — | — |
| 1972 | 74° | 56° | 65° | 0.08" | — |
| 1971 | 80° | 53° | 67° | — | — |
53 years of data from PORTLAND TROUTDALE AP