Weather on October 20
Portland, OR
55 Years of Data
Avg High
61°F
Avg Low
48°F
Warmest
2003
68°F avg
Coldest
1996
44°F avg
About This Date
October 20th in Portland, OR typically brings mild fall weather, with average highs around 61°F and lows near 48°F. Over 55 years of records, the warmest October 20th was in 2003 (68°F average), while the coldest was 1996 (44°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 40% of October 20th dates historically, with the wettest October 20th recording 2.34" 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 October 20th in Portland, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 61° | 48° | 54° | — | — |
| 2024 | 66° | 49° | 57° | 1.12" | — |
| 2023 | 67° | 55° | 61° | — | — |
| 2022 | 68° | 52° | 60° | — | — |
| 2021 | 60° | 51° | 56° | 0.56" | — |
| 2020 | 62° | 50° | 56° | — | — |
| 2019 | 56° | 48° | 52° | 0.05" | — |
| 2018 | 63° | 46° | 54° | — | — |
| 2017 | 53° | 47° | 50° | 0.36" | — |
| 2016 | 61° | 52° | 56° | 1.14" | — |
| 2015 | 66° | 53° | 60° | — | — |
| 2014 | 63° | 54° | 58° | 0.81" | — |
| 2013 | 61° | 44° | 52° | — | — |
| 2012 | 55° | 43° | 49° | 0.18" | — |
| 2011 | 60° | 51° | 56° | — | — |
| 2010 | 73° | 48° | 61° | — | — |
| 2009 | 61° | 52° | 56° | — | — |
| 2008 | 57° | 47° | 52° | 0.38" | — |
| 2007 | 54° | 44° | 49° | — | — |
| 2006 | 60° | 48° | 54° | — | — |
| 2005 | 59° | 50° | 55° | 0.74" | — |
| 2004 | 60° | 46° | 53° | 0.08" | — |
| 2003warmest | 75° | 60° | 68° | — | — |
| 2002 | 64° | 56° | 60° | — | — |
| 2001 | 58° | 43° | 50° | — | — |
| 2000 | 60° | 51° | 56° | 2.34" | — |
| 1999 | 73° | 50° | 62° | — | — |
| 1998 | 70° | 48° | 59° | — | — |
| 1997 | 65° | 43° | 54° | — | — |
| 1996coldest | 50° | 38° | 44° | — | — |
| 1995 | 64° | 50° | 57° | — | — |
| 1994 | 59° | 50° | 55° | 0.18" | — |
| 1993 | 68° | 46° | 57° | — | — |
| 1992 | 59° | 53° | 56° | 1.45" | — |
| 1991 | 69° | 48° | 59° | — | — |
| 1990 | 55° | 42° | 49° | — | — |
| 1989 | 63° | 53° | 58° | — | — |
| 1988 | 64° | 56° | 60° | — | — |
| 1987 | 73° | 52° | 62° | — | — |
| 1986 | 67° | 44° | 55° | — | — |
| 1985 | 61° | 53° | 57° | 1.7" | — |
| 1984 | 49° | 41° | 45° | 0.61" | — |
| 1983 | 64° | 52° | 58° | — | — |
| 1982 | 54° | 39° | 46° | — | — |
| 1981 | 62° | 48° | 55° | — | — |
| 1980 | 60° | 50° | 55° | — | — |
| 1979 | 50° | 44° | 47° | 0.61" | — |
| 1978 | 58° | 48° | 53° | 0.18" | — |
| 1977 | 54° | 47° | 50° | — | — |
| 1976 | 68° | 42° | 55° | — | — |
| 1975 | 54° | 47° | 50° | 0.03" | — |
| 1974 | 58° | 47° | 52° | 0.84" | — |
| 1973 | 63° | 54° | 58° | 0.91" | — |
| 1972 | 51° | 46° | 49° | 0.1" | — |
| 1971 | 57° | 45° | 51° | 0.28" | — |
55 years of data from PORTLAND KGW-TV