Weather on September 27
Portland, OR
55 Years of Data
Avg High
72°F
Avg Low
53°F
Warmest
2003
78°F avg
Coldest
1972
50°F avg
About This Date
September 27th 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 27th was in 2003 (78°F average), while the coldest was 1972 (50°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 27th dates historically, with the wettest September 27th recording 4.55" 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 27th in Portland, OR? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 54° | 66° | — | — |
| 2024 | 70° | 56° | 63° | 0.15" | — |
| 2023 | 60° | 54° | 57° | 1.04" | — |
| 2022 | 80° | 57° | 69° | — | — |
| 2021 | 63° | 54° | 58° | 4.55" | — |
| 2020 | 72° | 54° | 63° | — | — |
| 2019 | 62° | 51° | 57° | — | — |
| 2018 | 81° | 56° | 68° | — | — |
| 2017 | 84° | 57° | 71° | — | — |
| 2016 | 72° | 58° | 65° | — | — |
| 2015 | 68° | 47° | 57° | — | — |
| 2014 | 68° | 57° | 63° | — | — |
| 2013 | 55° | 48° | 52° | 0.64" | — |
| 2012 | 79° | 51° | 65° | — | — |
| 2011 | 66° | 54° | 60° | 0.41" | — |
| 2010 | 86° | 62° | 74° | — | — |
| 2009 | 80° | 50° | 65° | — | — |
| 2008 | 75° | 50° | 63° | — | — |
| 2007 | 74° | 52° | 63° | — | — |
| 2006 | 86° | 55° | 71° | — | — |
| 2005 | 76° | 55° | 65° | — | — |
| 2004 | 78° | 56° | 67° | — | — |
| 2003warmest | 93° | 63° | 78° | — | — |
| 2002 | 73° | 54° | 63° | — | — |
| 2001 | 64° | 51° | 58° | 0.43" | — |
| 2000 | 77° | 48° | 63° | — | — |
| 1999 | 64° | 42° | 53° | — | — |
| 1998 | 80° | 53° | 67° | — | — |
| 1997 | 68° | 52° | 60° | 0.15" | — |
| 1996 | 80° | 53° | 67° | — | — |
| 1995 | 64° | 58° | 61° | 1.12" | — |
| 1994 | 83° | 58° | 70° | — | — |
| 1993 | 84° | 54° | 69° | — | — |
| 1992 | 72° | 46° | 59° | — | — |
| 1991 | 65° | 56° | 60° | — | — |
| 1990 | 76° | 60° | 68° | — | — |
| 1989 | 72° | 55° | 63° | — | — |
| 1988 | 66° | 54° | 60° | 0.43" | — |
| 1987 | 72° | 47° | 59° | — | — |
| 1986 | 59° | 48° | 54° | 0.46" | — |
| 1985 | 75° | 53° | 64° | — | — |
| 1984 | 71° | 49° | 60° | — | — |
| 1983 | 64° | 48° | 56° | — | — |
| 1982 | 63° | 48° | 55° | — | — |
| 1981 | 69° | 53° | 61° | 0.79" | — |
| 1980 | 59° | 54° | 56° | — | — |
| 1979 | 74° | 47° | 60° | 0.03" | — |
| 1978 | 71° | 56° | 63° | — | — |
| 1977 | 63° | 53° | 58° | 0.23" | — |
| 1976 | 77° | 57° | 67° | — | — |
| 1975 | 83° | 53° | 68° | — | — |
| 1974 | 72° | 47° | 59° | — | — |
| 1973 | 82° | 55° | 69° | — | — |
| 1972coldest | 60° | 39° | 50° | — | — |
| 1971 | 66° | 51° | 59° | — | — |
55 years of data from PORTLAND KGW-TV