Weather on May 27
Hillsboro, OR
55 Years of Data
Avg High
70°F
Avg Low
47°F
Warmest
2005
72°F avg
Coldest
1982
49°F avg
About This Date
May 27th in Hillsboro, OR typically brings pleasant spring weather, with average highs around 70°F and lows near 47°F. Over 55 years of records, the warmest May 27th was in 2005 (72°F average), while the coldest was 1982 (49°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 27th dates historically, with the wettest May 27th recording 1.6" of rain. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for May 27th 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 | 83° | 43° | 63° | — | — |
| 2024 | 73° | 46° | 60° | — | — |
| 2023 | 74° | 50° | 62° | — | — |
| 2022 | 61° | 51° | 56° | 0.13" | — |
| 2021 | 63° | 50° | 56° | 0.28" | — |
| 2020 | 86° | 43° | 64° | — | — |
| 2019 | 70° | 54° | 62° | — | — |
| 2018 | 79° | 43° | 61° | — | — |
| 2017 | 89° | 50° | 70° | — | — |
| 2016 | 63° | 48° | 55° | 0.03" | — |
| 2015 | 79° | 47° | 63° | — | — |
| 2014 | 65° | 47° | 56° | 0.25" | — |
| 2013 | 64° | 51° | 58° | 1.4" | — |
| 2012 | 62° | 48° | 55° | — | — |
| 2011 | 58° | 41° | 49° | 0.15" | — |
| 2010 | 64° | 42° | 53° | 0.1" | — |
| 2009 | 76° | 45° | 60° | — | — |
| 2008 | 69° | 53° | 61° | — | — |
| 2007 | 61° | 47° | 54° | — | — |
| 2006 | 56° | 44° | 50° | 1.6" | — |
| 2005warmest | 94° | 51° | 72° | — | — |
| 2004 | 62° | 52° | 57° | 0.58" | — |
| 2003 | 70° | 51° | 60° | — | — |
| 2002 | 76° | 57° | 66° | — | — |
| 2001 | 67° | 50° | 58° | — | — |
| 2000 | 71° | 54° | 62° | — | — |
| 1999 | 79° | 53° | 66° | — | — |
| 1998 | 65° | 46° | 55° | — | — |
| 1997 | 76° | 60° | 68° | 0.05" | — |
| 1996 | 63° | 47° | 55° | — | — |
| 1995 | 77° | 50° | 64° | — | — |
| 1994 | 64° | 40° | 52° | — | — |
| 1993 | 78° | 56° | 67° | — | — |
| 1992 | 73° | 45° | 59° | — | — |
| 1991 | 60° | 48° | 54° | — | — |
| 1990 | 68° | 51° | 60° | 0.43" | — |
| 1989 | 58° | 46° | 52° | 0.53" | — |
| 1988 | 65° | 48° | 56° | 0.05" | — |
| 1987 | 61° | 44° | 52° | — | — |
| 1986 | 75° | 53° | 64° | — | — |
| 1985 | 70° | 47° | 58° | — | — |
| 1984 | 67° | 39° | 53° | 0.08" | — |
| 1983 | 79° | 47° | 63° | — | — |
| 1982coldest | 60° | 37° | 49° | 0.08" | — |
| 1981 | 72° | 42° | 57° | — | — |
| 1980 | 56° | 48° | 52° | 0.25" | — |
| 1979 | 69° | 39° | 54° | — | — |
| 1978 | 67° | 51° | 59° | 0.05" | — |
| 1977 | 60° | 42° | 51° | 0.08" | — |
| 1976 | 72° | 47° | 59° | 0.46" | — |
| 1975 | 72° | 46° | 59° | — | — |
| 1974 | 67° | 46° | 56° | — | — |
| 1973 | 62° | 39° | 51° | — | — |
| 1972 | 92° | 48° | 70° | — | — |
| 1971 | 75° | 46° | 61° | — | — |
55 years of data from HILLSBORO