Weather on September 3
Portland, OR
55 Years of Data
Avg High
78°F
Avg Low
57°F
Warmest
2003
80°F avg
Coldest
2015
58°F avg
About This Date
September 3rd in Portland, OR typically brings pleasant fall weather, with average highs around 78°F and lows near 57°F. Over 55 years of records, the warmest September 3rd was in 2003 (80°F average), while the coldest was 2015 (58°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 3rd dates historically, with the wettest September 3rd recording 1.27" of rain. The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for September 3rd in Portland, OR? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 67° | 74° | — | — |
| 2024 | 73° | 60° | 67° | — | — |
| 2023 | 71° | 61° | 66° | — | — |
| 2022 | 75° | 61° | 68° | — | — |
| 2021 | 83° | 55° | 69° | — | — |
| 2020 | 91° | 65° | 78° | — | — |
| 2019 | 81° | 61° | 71° | — | — |
| 2018 | 76° | 54° | 65° | — | — |
| 2017 | 92° | 67° | 79° | — | — |
| 2016 | 68° | 51° | 60° | 0.03" | — |
| 2015coldest | 66° | 50° | 58° | 0.05" | — |
| 2014 | 71° | 54° | 62° | — | — |
| 2013 | 79° | 60° | 69° | 0.13" | — |
| 2012 | 77° | 56° | 66° | — | — |
| 2011 | 86° | 52° | 69° | — | — |
| 2010 | 89° | 59° | 74° | — | — |
| 2009 | 78° | 58° | 68° | 0.05" | — |
| 2008 | 74° | 51° | 62° | — | — |
| 2007 | 86° | 58° | 72° | — | — |
| 2006 | 85° | 59° | 72° | — | — |
| 2005 | 74° | 58° | 66° | — | — |
| 2004 | 72° | 53° | 62° | — | — |
| 2003warmest | 96° | 65° | 80° | — | — |
| 2002 | 72° | 53° | 62° | — | — |
| 2001 | 74° | 53° | 63° | — | — |
| 2000 | 70° | 53° | 61° | 0.33" | — |
| 1999 | 80° | 56° | 68° | — | — |
| 1998 | 89° | 64° | 77° | — | — |
| 1997 | 78° | 61° | 69° | — | — |
| 1996 | 69° | 54° | 61° | — | — |
| 1995 | 73° | 60° | 67° | 0.51" | — |
| 1994 | 69° | 58° | 63° | 0.89" | — |
| 1993 | 86° | 58° | 72° | — | — |
| 1992 | 76° | 57° | 66° | — | — |
| 1991 | 88° | 59° | 73° | — | — |
| 1990 | 82° | 57° | 70° | — | — |
| 1989 | 75° | 50° | 63° | — | — |
| 1988 | 92° | 57° | 74° | — | — |
| 1987 | 77° | 51° | 64° | — | — |
| 1986 | 86° | 61° | 73° | — | — |
| 1985 | 73° | 53° | 63° | — | — |
| 1984 | 83° | 55° | 69° | — | — |
| 1983 | 74° | 54° | 64° | — | — |
| 1982 | 72° | 56° | 64° | 0.25" | — |
| 1981 | 80° | 55° | 68° | — | — |
| 1980 | 76° | 49° | 62° | — | — |
| 1979 | 73° | 57° | 65° | — | — |
| 1978 | 76° | 57° | 66° | 0.71" | — |
| 1977 | 68° | 59° | 64° | 1.27" | — |
| 1976 | 81° | 56° | 68° | — | — |
| 1975 | 77° | 50° | 64° | — | — |
| 1974 | 73° | 56° | 64° | — | — |
| 1973 | 83° | 52° | 67° | — | — |
| 1972 | 93° | 61° | 77° | — | — |
| 1971 | 73° | 55° | 64° | — | — |
55 years of data from PORTLAND KGW-TV