Weather on June 18
Hillsboro, OR
55 Years of Data
Avg High
72°F
Avg Low
49°F
Warmest
1982
74°F avg
Coldest
1973
54°F avg
About This Date
June 18th in Hillsboro, OR typically brings pleasant summer weather, with average highs around 72°F and lows near 49°F. Over 55 years of records, the warmest June 18th was in 1982 (74°F average), while the coldest was 1973 (54°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 31% of June 18th dates historically, with the wettest June 18th recording 0.97" 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 June 18th in Hillsboro, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 52° | 62° | — | — |
| 2024 | 74° | 39° | 56° | — | — |
| 2023 | 59° | 49° | 54° | 0.91" | — |
| 2022 | 64° | 49° | 56° | 0.03" | — |
| 2021 | 79° | 47° | 63° | — | — |
| 2020 | 82° | 47° | 64° | — | — |
| 2019 | 72° | 51° | 61° | — | — |
| 2018 | 84° | 52° | 68° | — | — |
| 2017 | 79° | 59° | 69° | — | — |
| 2016 | 67° | 46° | 56° | — | — |
| 2015 | 82° | 54° | 68° | — | — |
| 2014 | 73° | 44° | 59° | — | — |
| 2013 | 68° | 47° | 57° | 0.33" | — |
| 2012 | 64° | 52° | 58° | — | — |
| 2011 | 64° | 53° | 59° | 0.3" | — |
| 2010 | 69° | 44° | 57° | 0.03" | — |
| 2009 | 74° | 52° | 63° | 0.18" | — |
| 2008 | 67° | 46° | 56° | — | — |
| 2007 | 68° | 49° | 58° | — | — |
| 2006 | 69° | 46° | 58° | — | — |
| 2005 | 73° | 49° | 61° | 0.03" | — |
| 2004 | 89° | 52° | 70° | 0.1" | — |
| 2003 | 68° | 48° | 58° | — | — |
| 2002 | 60° | 54° | 57° | 0.33" | — |
| 2001 | 74° | 42° | 58° | — | — |
| 2000 | 71° | 50° | 61° | — | — |
| 1999 | 67° | 53° | 60° | 0.38" | — |
| 1998 | 65° | 51° | 58° | — | — |
| 1997 | 74° | 48° | 61° | — | — |
| 1996 | 67° | 47° | 57° | — | — |
| 1995 | 62° | 50° | 56° | 0.97" | — |
| 1994 | 71° | 48° | 60° | 0.2" | — |
| 1993 | 80° | 54° | 67° | — | — |
| 1992 | 71° | 45° | 58° | — | — |
| 1991 | 71° | 47° | 59° | — | — |
| 1990 | 69° | 48° | 59° | — | — |
| 1989 | 69° | 46° | 58° | 0.05" | — |
| 1988 | 72° | 53° | 62° | — | — |
| 1987 | 72° | 46° | 59° | — | — |
| 1986 | 64° | 50° | 57° | 0.2" | — |
| 1985 | 92° | 53° | 72° | — | — |
| 1984 | 74° | 45° | 59° | — | — |
| 1983 | 65° | 51° | 58° | 0.08" | — |
| 1982warmest | 92° | 56° | 74° | — | — |
| 1981 | 69° | 50° | 60° | 0.08" | — |
| 1980 | 71° | 39° | 55° | — | — |
| 1979 | 70° | 51° | 60° | — | — |
| 1978 | 76° | 50° | 63° | — | — |
| 1977 | 72° | 55° | 63° | — | — |
| 1976 | 90° | 48° | 69° | — | — |
| 1975 | 63° | 46° | 54° | — | — |
| 1974 | 82° | 59° | 71° | — | — |
| 1973coldest | 71° | 37° | 54° | — | — |
| 1972 | 76° | 50° | 63° | — | — |
| 1971 | 67° | 54° | 60° | 0.61" | — |
55 years of data from HILLSBORO