Weather on September 3
Hillsboro, OR
55 Years of Data
Avg High
79°F
Avg Low
50°F
Warmest
1988
77°F avg
Coldest
1980
53°F avg
About This Date
September 3rd in Hillsboro, OR typically brings pleasant fall weather, with average highs around 79°F and lows near 50°F — a 29°F daily swing. Over 55 years of records, the warmest September 3rd was in 1988 (77°F average), while the coldest was 1980 (53°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 3rd dates historically, with the wettest September 3rd recording 3.51" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for September 3rd in Hillsboro, OR? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 63° | 74° | — | — |
| 2024 | 76° | 53° | 64° | — | — |
| 2023 | 70° | 61° | 65° | — | — |
| 2022 | 78° | 57° | 68° | — | — |
| 2021 | 83° | 45° | 64° | — | — |
| 2020 | 98° | 54° | 76° | — | — |
| 2019 | 84° | 53° | 69° | — | — |
| 2018 | 79° | 48° | 63° | — | — |
| 2017 | 96° | 57° | 77° | — | — |
| 2016 | 71° | 44° | 58° | — | — |
| 2015 | 67° | 42° | 54° | 0.08" | — |
| 2014 | 73° | 44° | 59° | — | — |
| 2013 | 79° | 60° | 69° | 0.13" | — |
| 2012 | 80° | 45° | 62° | — | — |
| 2011 | 86° | 46° | 66° | — | — |
| 2010 | 89° | 51° | 70° | — | — |
| 2009 | 76° | 54° | 65° | 0.03" | — |
| 2008 | 75° | 42° | 59° | — | — |
| 2007 | 83° | 49° | 66° | 0.03" | — |
| 2006 | 90° | 51° | 70° | — | — |
| 2005 | 75° | 52° | 63° | — | — |
| 2004 | 73° | 45° | 59° | — | — |
| 2003 | 96° | 55° | 76° | — | — |
| 2002 | 73° | 47° | 60° | — | — |
| 2001 | 76° | 50° | 63° | — | — |
| 2000 | 65° | 48° | 56° | 0.15" | — |
| 1999 | 82° | 42° | 62° | — | — |
| 1998 | 93° | 59° | 76° | — | — |
| 1997 | 81° | 56° | 68° | — | — |
| 1996 | 70° | 50° | 60° | 0.36" | — |
| 1995 | 68° | 56° | 62° | 0.05" | — |
| 1994 | 71° | 52° | 61° | — | — |
| 1993 | 88° | 51° | 69° | — | — |
| 1992 | 87° | 47° | 67° | — | — |
| 1991 | 79° | 49° | 64° | — | — |
| 1990 | 75° | 52° | 63° | — | — |
| 1989 | 72° | 46° | 59° | — | — |
| 1988warmest | 103° | 52° | 77° | — | — |
| 1987 | 95° | 45° | 70° | — | — |
| 1986 | 82° | 55° | 69° | — | — |
| 1985 | 73° | 44° | 59° | — | — |
| 1984 | 83° | 39° | 61° | — | — |
| 1983 | 75° | 49° | 62° | — | — |
| 1982 | 91° | 57° | 74° | 0.3" | — |
| 1981 | 78° | 46° | 62° | — | — |
| 1980coldest | 66° | 39° | 53° | — | — |
| 1979 | 65° | 54° | 59° | 3.51" | — |
| 1978 | 69° | 55° | 62° | 1.32" | — |
| 1977 | 68° | 59° | 64° | 0.66" | — |
| 1976 | 83° | 48° | 65° | — | — |
| 1975 | 77° | 46° | 62° | — | — |
| 1974 | 73° | 55° | 64° | — | — |
| 1973 | 84° | 45° | 64° | — | — |
| 1972 | 92° | 50° | 71° | — | — |
| 1971 | 73° | 49° | 61° | — | — |
55 years of data from HILLSBORO