Weather on August 22
Hillsboro, OR
55 Years of Data
About This Date
August 22nd in Hillsboro, OR typically brings pleasant summer weather, with average highs around 79°F and lows near 51°F — a 28°F daily swing. Over 55 years of records, the warmest August 22nd was in 2025 (76°F average), while the coldest was 1973 (57°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 18% of August 22nd dates historically, with the wettest August 22nd recording 2.01" 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 August 22nd in Hillsboro, OR? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 99° | 54° | 76° | — | — |
| 2024 | 70° | 59° | 64° | 0.43" | — |
| 2023 | 76° | 48° | 62° | — | — |
| 2022 | 88° | 58° | 73° | — | — |
| 2021 | 69° | 49° | 59° | — | — |
| 2020 | 79° | 51° | 65° | — | — |
| 2019 | 75° | 46° | 61° | — | — |
| 2018 | 93° | 52° | 72° | — | — |
| 2017 | 88° | 55° | 71° | — | — |
| 2016 | 75° | 47° | 61° | — | — |
| 2015 | 85° | 47° | 66° | — | — |
| 2014 | 82° | 55° | 69° | — | — |
| 2013 | 84° | 52° | 68° | 0.03" | — |
| 2012 | 76° | 46° | 61° | — | — |
| 2011 | 80° | 55° | 68° | — | — |
| 2010 | 72° | 49° | 60° | — | — |
| 2009 | 79° | 54° | 66° | — | — |
| 2008 | 81° | 47° | 64° | — | — |
| 2007 | 77° | 54° | 65° | — | — |
| 2006 | 79° | 49° | 64° | — | — |
| 2005 | 79° | 50° | 64° | — | — |
| 2004 | 70° | 59° | 64° | 2.01" | — |
| 2003 | 74° | 54° | 64° | 0.05" | — |
| 2002 | 84° | 44° | 64° | — | — |
| 2001 | 68° | 53° | 61° | 0.51" | — |
| 2000 | 90° | 49° | 69° | — | — |
| 1999 | 89° | 47° | 68° | — | — |
| 1998 | 80° | 62° | 71° | — | — |
| 1997 | 87° | 55° | 71° | — | — |
| 1996 | 92° | 54° | 73° | — | — |
| 1995 | 83° | 53° | 68° | — | — |
| 1994 | 73° | 54° | 63° | — | — |
| 1993 | 77° | 53° | 65° | — | — |
| 1992 | 71° | 51° | 61° | — | — |
| 1991 | 91° | 55° | 73° | — | — |
| 1990 | 66° | 58° | 62° | 0.53" | — |
| 1989 | 74° | 56° | 65° | 0.13" | — |
| 1988 | 83° | 45° | 64° | — | — |
| 1987 | 80° | 46° | 63° | — | — |
| 1986 | 90° | 48° | 69° | — | — |
| 1985 | 73° | 43° | 58° | — | — |
| 1984 | 86° | 50° | 68° | — | — |
| 1983 | 82° | 49° | 65° | — | — |
| 1982 | 89° | 50° | 70° | — | — |
| 1981 | 78° | 46° | 62° | — | — |
| 1980 | 79° | 43° | 61° | — | — |
| 1979 | 79° | 55° | 67° | — | — |
| 1978 | 68° | 55° | 62° | 0.15" | — |
| 1977 | 76° | 56° | 66° | — | — |
| 1976 | 76° | 49° | 62° | — | — |
| 1975 | 68° | 47° | 57° | 1.02" | — |
| 1974 | 80° | 56° | 68° | — | — |
| 1973coldest | 74° | 40° | 57° | — | — |
| 1972 | 79° | 55° | 67° | — | — |
| 1971 | 72° | 55° | 63° | 0.69" | — |
Hillsboro, OR Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Hillsboro, OR Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Hillsboro, OR Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Hillsboro, OR
Hillsboro, OR has no months that meet our "pleasant" threshold — every season has tradeoffs.