Weather on August 12
Hillsboro, OR
55 Years of Data
Avg High
84°F
Avg Low
54°F
Warmest
1977
89°F avg
Coldest
2007
56°F avg
About This Date
August 12th in Hillsboro, OR typically brings warm summer weather, with average highs around 84°F and lows near 54°F — a 30°F daily swing. Over 55 years of records, the warmest August 12th was in 1977 (89°F average), while the coldest was 2007 (56°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 9% of August 12th dates historically. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for August 12th in Hillsboro, OR? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 62° | 80° | — | — |
| 2024 | 71° | 56° | 63° | — | — |
| 2023 | 91° | 54° | 72° | — | — |
| 2022 | 79° | 53° | 66° | — | — |
| 2021 | 103° | 62° | 82° | — | — |
| 2020 | 72° | 52° | 62° | — | — |
| 2019 | 83° | 51° | 67° | — | — |
| 2018 | 78° | 54° | 66° | — | — |
| 2017 | 80° | 57° | 69° | — | — |
| 2016 | 98° | 57° | 78° | — | — |
| 2015 | 90° | 57° | 73° | — | — |
| 2014 | 79° | 65° | 72° | 0.1" | — |
| 2013 | 78° | 54° | 66° | — | — |
| 2012 | 97° | 53° | 75° | — | — |
| 2011 | 82° | 49° | 65° | — | — |
| 2010 | 85° | 49° | 67° | — | — |
| 2009 | 78° | 56° | 67° | 0.43" | — |
| 2008 | 83° | 52° | 67° | — | — |
| 2007coldest | 64° | 48° | 56° | 0.08" | — |
| 2006 | 83° | 44° | 63° | — | — |
| 2005 | 84° | 50° | 67° | — | — |
| 2004 | 92° | 58° | 75° | — | — |
| 2003 | 78° | 49° | 63° | — | — |
| 2002 | 95° | 60° | 78° | — | — |
| 2001 | 85° | 49° | 67° | — | — |
| 2000 | 78° | 43° | 60° | — | — |
| 1999 | 72° | 55° | 63° | — | — |
| 1998 | 92° | 63° | 77° | — | — |
| 1997 | 95° | 56° | 75° | — | — |
| 1996 | 88° | 52° | 70° | — | — |
| 1995 | 73° | 46° | 60° | — | — |
| 1994 | 84° | 55° | 70° | — | — |
| 1993 | 74° | 52° | 63° | — | — |
| 1992 | 101° | 58° | 79° | — | — |
| 1991 | 82° | 49° | 65° | — | — |
| 1990 | 100° | 61° | 80° | — | — |
| 1989 | 79° | 51° | 65° | — | — |
| 1988 | 70° | 53° | 61° | — | — |
| 1987 | 76° | 50° | 63° | — | — |
| 1986 | 78° | 55° | 67° | — | — |
| 1985 | 84° | 48° | 66° | — | — |
| 1984 | 80° | 54° | 67° | — | — |
| 1983 | 73° | 48° | 61° | — | — |
| 1982 | 72° | 53° | 62° | 0.36" | — |
| 1981 | 101° | 56° | 78° | — | — |
| 1980 | 84° | 50° | 67° | — | — |
| 1979 | 85° | 55° | 70° | — | — |
| 1978 | 70° | 57° | 63° | 0.03" | — |
| 1977warmest | 104° | 74° | 89° | — | — |
| 1976 | 80° | 52° | 66° | — | — |
| 1975 | 85° | 49° | 67° | — | — |
| 1974 | 70° | 48° | 59° | — | — |
| 1973 | 94° | 52° | 73° | — | — |
| 1972 | 76° | 53° | 64° | — | — |
| 1971 | 92° | 58° | 75° | — | — |
55 years of data from HILLSBORO