Weather on October 18
Hillsboro, OR
55 Years of Data
Avg High
64°F
Avg Low
41°F
Warmest
2014
62°F avg
Coldest
1984
43°F avg
About This Date
October 18th 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 18th was in 2014 (62°F average), while the coldest was 1984 (43°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 40% of October 18th dates historically, with the wettest October 18th recording 1.55" 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 October 18th in Hillsboro, 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 | 62° | 35° | 49° | 1.12" | — |
| 2024 | 56° | 39° | 47° | 0.05" | — |
| 2023 | 72° | 40° | 56° | — | — |
| 2022 | 73° | 40° | 56° | — | — |
| 2021 | 58° | 40° | 49° | — | — |
| 2020 | 71° | 49° | 60° | — | — |
| 2019 | 57° | 43° | 50° | 0.15" | — |
| 2018 | 72° | 34° | 53° | — | — |
| 2017 | 64° | 47° | 55° | 0.05" | — |
| 2016 | 58° | 42° | 50° | 0.1" | — |
| 2015 | 63° | 55° | 59° | 0.25" | — |
| 2014warmest | 71° | 53° | 62° | 0.05" | — |
| 2013 | 72° | 35° | 53° | — | — |
| 2012 | 67° | 36° | 51° | 0.1" | — |
| 2011 | 74° | 41° | 57° | — | — |
| 2010 | 67° | 31° | 49° | — | — |
| 2009 | 64° | 54° | 59° | — | — |
| 2008 | 60° | 36° | 48° | 0.03" | — |
| 2007 | 63° | 45° | 54° | 1.19" | — |
| 2006 | 56° | 41° | 48° | — | — |
| 2005 | 66° | 49° | 57° | 0.1" | — |
| 2004 | 53° | 48° | 51° | 0.64" | — |
| 2003 | 69° | 45° | 57° | 0.03" | — |
| 2002 | 79° | 39° | 59° | — | — |
| 2001 | 53° | 34° | 43° | 0.05" | — |
| 2000 | 66° | 46° | 56° | — | — |
| 1999 | 72° | 36° | 54° | — | — |
| 1998 | 64° | 41° | 53° | — | — |
| 1997 | 61° | 42° | 51° | — | — |
| 1996 | 51° | 40° | 45° | 1.17" | — |
| 1995 | 59° | 37° | 48° | — | — |
| 1994 | 58° | 33° | 45° | — | — |
| 1993 | 59° | 39° | 49° | — | — |
| 1992 | 66° | 50° | 58° | — | — |
| 1991 | 60° | 35° | 48° | — | — |
| 1990 | 56° | 39° | 47° | 1.55" | — |
| 1989 | 72° | 37° | 54° | — | — |
| 1988 | 66° | 44° | 55° | — | — |
| 1987 | 63° | 36° | 49° | — | — |
| 1986 | 57° | 43° | 50° | 0.3" | — |
| 1985 | 63° | 35° | 49° | — | — |
| 1984coldest | 52° | 35° | 43° | 0.08" | — |
| 1983 | 63° | 35° | 49° | — | — |
| 1982 | 58° | 31° | 44° | 0.08" | — |
| 1981 | 75° | 39° | 57° | — | — |
| 1980 | 57° | 36° | 46° | — | — |
| 1979 | 62° | 38° | 50° | 0.86" | — |
| 1978 | 80° | 42° | 61° | — | — |
| 1977 | 69° | 39° | 54° | — | — |
| 1976 | 67° | 55° | 61° | — | — |
| 1975 | 58° | 41° | 49° | 0.1" | — |
| 1974 | 81° | 35° | 58° | — | — |
| 1973 | 62° | 45° | 53° | — | — |
| 1972 | 70° | 35° | 52° | — | — |
| 1971 | 52° | 44° | 48° | 0.46" | — |
55 years of data from HILLSBORO