Weather on August 11
Hillsboro, OR
55 Years of Data
Avg High
83°F
Avg Low
54°F
Warmest
1981
82°F avg
Coldest
1974
60°F avg
About This Date
August 11th in Hillsboro, OR typically brings warm summer weather, with average highs around 83°F and lows near 54°F — a 29°F daily swing. Over 55 years of records, the warmest August 11th was in 1981 (82°F average), while the coldest was 1974 (60°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 5% of August 11th dates historically, with the wettest August 11th recording 1.27" 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 11th in Hillsboro, OR? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 62° | 80° | — | — |
| 2024 | 84° | 56° | 70° | — | — |
| 2023 | 86° | 53° | 70° | — | — |
| 2022 | 87° | 51° | 69° | — | — |
| 2021 | 103° | 62° | 82° | — | — |
| 2020 | 81° | 44° | 62° | — | — |
| 2019 | 75° | 57° | 66° | — | — |
| 2018 | 78° | 56° | 67° | — | — |
| 2017 | 89° | 61° | 75° | — | — |
| 2016 | 91° | 53° | 72° | — | — |
| 2015 | 90° | 60° | 75° | — | — |
| 2014 | 98° | 63° | 80° | — | — |
| 2013 | 75° | 58° | 66° | — | — |
| 2012 | 88° | 49° | 68° | — | — |
| 2011 | 78° | 47° | 62° | — | — |
| 2010 | 80° | 46° | 63° | — | — |
| 2009 | 74° | 59° | 66° | 1.27" | — |
| 2008 | 83° | 56° | 69° | — | — |
| 2007 | 80° | 45° | 62° | — | — |
| 2006 | 73° | 47° | 60° | — | — |
| 2005 | 74° | 46° | 60° | — | — |
| 2004 | 96° | 57° | 77° | — | — |
| 2003 | 75° | 51° | 63° | 0.13" | — |
| 2002 | 87° | 65° | 76° | — | — |
| 2001 | 87° | 55° | 71° | — | — |
| 2000 | 74° | 49° | 61° | — | — |
| 1999 | 65° | 58° | 61° | — | — |
| 1998 | 90° | 61° | 75° | — | — |
| 1997 | 92° | 56° | 74° | — | — |
| 1996 | 77° | 53° | 65° | — | — |
| 1995 | 74° | 52° | 63° | — | — |
| 1994 | 84° | 54° | 69° | — | — |
| 1993 | 77° | 53° | 65° | — | — |
| 1992 | 95° | 54° | 74° | — | — |
| 1991 | 73° | 49° | 61° | — | — |
| 1990 | 97° | 57° | 77° | — | — |
| 1989 | 77° | 47° | 62° | — | — |
| 1988 | 78° | 51° | 65° | — | — |
| 1987 | 70° | 58° | 64° | — | — |
| 1986 | 80° | 53° | 67° | — | — |
| 1985 | 73° | 47° | 60° | — | — |
| 1984 | 85° | 51° | 68° | — | — |
| 1983 | 74° | 55° | 64° | — | — |
| 1982 | 68° | 58° | 63° | 0.61" | — |
| 1981warmest | 104° | 59° | 82° | — | — |
| 1980 | 94° | 54° | 74° | — | — |
| 1979 | 84° | 46° | 65° | — | — |
| 1978 | 73° | 60° | 67° | — | — |
| 1977 | 101° | 59° | 80° | — | — |
| 1976 | 85° | 53° | 69° | — | — |
| 1975 | 90° | 51° | 70° | — | — |
| 1974coldest | 74° | 46° | 60° | — | — |
| 1973 | 84° | 45° | 64° | — | — |
| 1972 | 78° | 50° | 64° | — | — |
| 1971 | 101° | 57° | 79° | — | — |
55 years of data from HILLSBORO