Weather on October 20
Hillsboro, OR
55 Years of Data
Avg High
63°F
Avg Low
42°F
Warmest
2003
67°F avg
Coldest
1996
43°F avg
About This Date
October 20th in Hillsboro, OR typically brings mild fall weather, with average highs around 63°F and lows near 42°F. Over 55 years of records, the warmest October 20th was in 2003 (67°F average), while the coldest was 1996 (43°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 53% of October 20th dates historically, with the wettest October 20th recording 1.78" 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 Hillsboro, 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° | 41° | 51° | — | — |
| 2024 | 65° | 47° | 56° | 0.56" | — |
| 2023 | 70° | 49° | 59° | — | — |
| 2022 | 71° | 40° | 55° | — | — |
| 2021 | 59° | 48° | 54° | 1.07" | — |
| 2020 | 64° | 45° | 54° | — | — |
| 2019 | 58° | 42° | 50° | — | — |
| 2018 | 69° | 35° | 52° | — | — |
| 2017 | 54° | 45° | 49° | 0.38" | — |
| 2016 | 63° | 51° | 57° | 0.79" | — |
| 2015 | 64° | 44° | 54° | 0.05" | — |
| 2014 | 63° | 53° | 58° | 0.61" | — |
| 2013 | 67° | 35° | 51° | — | — |
| 2012 | 54° | 40° | 47° | 1.22" | — |
| 2011 | 58° | 47° | 52° | 0.03" | — |
| 2010 | 73° | 37° | 55° | — | — |
| 2009 | 60° | 45° | 52° | — | — |
| 2008 | 60° | 35° | 48° | 0.36" | — |
| 2007 | 55° | 44° | 50° | 1.78" | — |
| 2006 | 59° | 39° | 49° | — | — |
| 2005 | 61° | 46° | 53° | 0.2" | — |
| 2004 | 61° | 45° | 53° | 0.05" | — |
| 2003warmest | 75° | 59° | 67° | 0.05" | — |
| 2002 | 66° | 46° | 56° | — | — |
| 2001 | 58° | 36° | 47° | — | — |
| 2000 | 60° | 47° | 53° | 1.6" | — |
| 1999 | 71° | 39° | 55° | — | — |
| 1998 | 72° | 44° | 58° | — | — |
| 1997 | 68° | 37° | 53° | — | — |
| 1996coldest | 50° | 35° | 43° | — | — |
| 1995 | 62° | 43° | 52° | 0.38" | — |
| 1994 | 59° | 46° | 53° | 0.05" | — |
| 1993 | 60° | 38° | 49° | — | — |
| 1992 | 71° | 48° | 60° | — | — |
| 1991 | 73° | 44° | 59° | — | — |
| 1990 | 57° | 38° | 47° | 0.03" | — |
| 1989 | 59° | 48° | 54° | — | — |
| 1988 | 69° | 45° | 57° | — | — |
| 1987 | 72° | 37° | 54° | — | — |
| 1986 | 69° | 36° | 52° | — | — |
| 1985 | 58° | 50° | 54° | 1.55" | — |
| 1984 | 48° | 41° | 45° | 0.58" | — |
| 1983 | 54° | 43° | 48° | 0.1" | — |
| 1982 | 63° | 32° | 47° | — | — |
| 1981 | 71° | 41° | 56° | — | — |
| 1980 | 68° | 40° | 54° | 0.05" | — |
| 1979 | 57° | 44° | 51° | 1.14" | — |
| 1978 | 61° | 30° | 45° | 0.18" | — |
| 1977 | 55° | 37° | 46° | 0.03" | — |
| 1976 | 70° | 29° | 49° | — | — |
| 1975 | 62° | 43° | 52° | 0.03" | — |
| 1974 | 60° | 42° | 51° | 0.51" | — |
| 1973 | 64° | 51° | 58° | 0.76" | — |
| 1972 | 53° | 40° | 46° | 0.03" | — |
| 1971 | 57° | 42° | 50° | 0.13" | — |
55 years of data from HILLSBORO