Weather on October 17
Hillsboro, OR
55 Years of Data
Avg High
64°F
Avg Low
41°F
Warmest
1978
62°F avg
Coldest
1971
39°F avg
About This Date
October 17th in Hillsboro, OR typically brings mild fall weather, with average highs around 64°F and lows near 41°F. Over 55 years of records, the warmest October 17th was in 1978 (62°F average), while the coldest was 1971 (39°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 40% of October 17th dates historically, with the wettest October 17th recording 1.35" 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 17th in Hillsboro, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 39° | 51° | — | — |
| 2024 | 60° | 40° | 50° | 0.13" | — |
| 2023 | 64° | 45° | 54° | — | — |
| 2022 | 69° | 44° | 57° | — | — |
| 2021 | 60° | 48° | 54° | 0.3" | — |
| 2020 | 69° | 49° | 59° | — | — |
| 2019 | 58° | 43° | 50° | 0.84" | — |
| 2018 | 77° | 36° | 56° | — | — |
| 2017 | 55° | 37° | 46° | 0.05" | — |
| 2016 | 61° | 50° | 55° | 1.09" | — |
| 2015 | 67° | 54° | 60° | 0.1" | — |
| 2014 | 59° | 52° | 55° | 0.51" | — |
| 2013 | 67° | 35° | 51° | — | — |
| 2012 | 63° | 38° | 50° | — | — |
| 2011 | 66° | 37° | 52° | — | — |
| 2010 | 65° | 31° | 48° | — | — |
| 2009 | 66° | 52° | 59° | 0.51" | — |
| 2008 | 69° | 42° | 56° | — | — |
| 2007 | 53° | 44° | 49° | 0.48" | — |
| 2006 | 62° | 44° | 53° | — | — |
| 2005 | 67° | 50° | 58° | — | — |
| 2004 | 58° | 49° | 53° | 0.66" | — |
| 2003 | 73° | 50° | 62° | — | — |
| 2002 | 79° | 42° | 60° | — | — |
| 2001 | 51° | 36° | 43° | 0.13" | — |
| 2000 | 68° | 40° | 54° | — | — |
| 1999 | 73° | 33° | 53° | — | — |
| 1998 | 58° | 41° | 49° | 0.13" | — |
| 1997 | 60° | 44° | 52° | — | — |
| 1996 | 55° | 38° | 46° | 1.35" | — |
| 1995 | 56° | 40° | 48° | 0.69" | — |
| 1994 | 55° | 33° | 44° | 0.03" | — |
| 1993 | 59° | 47° | 53° | 0.03" | — |
| 1992 | 55° | 40° | 47° | — | — |
| 1991 | 64° | 35° | 50° | — | — |
| 1990 | 60° | 37° | 49° | 0.05" | — |
| 1989 | 66° | 34° | 50° | — | — |
| 1988 | 70° | 49° | 59° | — | — |
| 1987 | 72° | 37° | 54° | — | — |
| 1986 | 66° | 35° | 51° | — | — |
| 1985 | 63° | 36° | 49° | 0.15" | — |
| 1984 | 59° | 31° | 45° | — | — |
| 1983 | 57° | 38° | 47° | 0.36" | — |
| 1982 | 60° | 41° | 51° | 0.13" | — |
| 1981 | 69° | 40° | 54° | — | — |
| 1980 | 60° | 33° | 47° | — | — |
| 1979 | 63° | 36° | 49° | 0.05" | — |
| 1978warmest | 75° | 48° | 62° | — | — |
| 1977 | 72° | 37° | 54° | — | — |
| 1976 | 66° | 32° | 49° | — | — |
| 1975 | 61° | 50° | 55° | 0.76" | — |
| 1974 | 81° | 36° | 58° | — | — |
| 1973 | 68° | 43° | 55° | — | — |
| 1972 | 71° | 37° | 54° | — | — |
| 1971coldest | 50° | 28° | 39° | — | — |
55 years of data from HILLSBORO