Weather on September 25
Portland, OR
55 Years of Data
Avg High
72°F
Avg Low
53°F
Warmest
1991
77°F avg
Coldest
1986
53°F avg
About This Date
September 25th in Portland, OR typically brings pleasant fall weather, with average highs around 72°F and lows near 53°F. Over 55 years of records, the warmest September 25th was in 1991 (77°F average), while the coldest was 1986 (53°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 33% of September 25th dates historically, with the wettest September 25th recording 1.93" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 25th in Portland, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 51° | 62° | — | — |
| 2024 | 72° | 55° | 63° | 1.52" | — |
| 2023 | 63° | 57° | 60° | 1.63" | — |
| 2022 | 86° | 57° | 72° | — | — |
| 2021 | 83° | 56° | 69° | — | — |
| 2020 | 61° | 53° | 57° | 1.93" | — |
| 2019 | 70° | 52° | 61° | — | — |
| 2018 | 77° | 52° | 64° | — | — |
| 2017 | 65° | 54° | 59° | — | — |
| 2016 | 81° | 51° | 66° | — | — |
| 2015 | 64° | 57° | 61° | 0.69" | — |
| 2014 | 70° | 56° | 63° | 0.13" | — |
| 2013 | 61° | 49° | 55° | 0.1" | — |
| 2012 | 71° | 54° | 62° | — | — |
| 2011 | 71° | 57° | 64° | 0.51" | — |
| 2010 | 80° | 53° | 67° | — | — |
| 2009 | 76° | 54° | 65° | — | — |
| 2008 | 65° | 55° | 60° | — | — |
| 2007 | 67° | 47° | 57° | — | — |
| 2006 | 86° | 56° | 71° | — | — |
| 2005 | 74° | 45° | 59° | — | — |
| 2004 | 72° | 54° | 63° | — | — |
| 2003 | 81° | 55° | 68° | — | — |
| 2002 | 82° | 57° | 70° | — | — |
| 2001 | 80° | 58° | 69° | — | — |
| 2000 | 78° | 44° | 61° | — | — |
| 1999 | 64° | 53° | 59° | 0.1" | — |
| 1998 | 64° | 51° | 58° | 0.3" | — |
| 1997 | 79° | 60° | 69° | 0.66" | — |
| 1996 | 73° | 48° | 61° | — | — |
| 1995 | 68° | 54° | 61° | 1.32" | — |
| 1994 | 82° | 56° | 69° | — | — |
| 1993 | 74° | 51° | 62° | — | — |
| 1992 | 65° | 54° | 59° | — | — |
| 1991warmest | 94° | 61° | 77° | — | — |
| 1990 | 71° | 59° | 65° | — | — |
| 1989 | 67° | 55° | 61° | — | — |
| 1988 | 65° | 55° | 60° | 0.3" | — |
| 1987 | 64° | 56° | 60° | 0.13" | — |
| 1986coldest | 58° | 49° | 53° | 1.57" | — |
| 1985 | 81° | 55° | 68° | — | — |
| 1984 | 65° | 48° | 56° | — | — |
| 1983 | 77° | 51° | 64° | — | — |
| 1982 | 64° | 51° | 58° | 0.3" | — |
| 1981 | 66° | 48° | 57° | 0.08" | — |
| 1980 | 81° | 51° | 66° | — | — |
| 1979 | 76° | 55° | 65° | — | — |
| 1978 | 83° | 57° | 70° | — | — |
| 1977 | 63° | 50° | 56° | 0.99" | — |
| 1976 | 84° | 53° | 69° | — | — |
| 1975 | 68° | 49° | 58° | — | — |
| 1974 | 85° | 55° | 70° | — | — |
| 1973 | 70° | 48° | 59° | — | — |
| 1972 | 65° | 43° | 54° | — | — |
| 1971 | 61° | 50° | 55° | 0.79" | — |
55 years of data from PORTLAND KGW-TV