Kingshuk Mondal / CC BY 4.0
Hillsboro, OR Weather on August 27
August 27th in Hillsboro, OR typically brings warm summer weather, with average highs around 82°F and lows near 52°F — a 30°F daily swing. Over 55 years of records, the warmest August 27th was in 1974 (79°F average), while the coldest was 2000 (55°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 11% of August 27th dates historically. The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
What to Expect on August 27
Planning for August 27th in Hillsboro, OR? Stay hydrated and seek shade during peak afternoon hours.
August 27 Weather Records for Hillsboro
- •The all-time record high for August 27th in Hillsboro, OR is 100°F, set in 1986.
- •The coldest August 27th on record dropped to 40°F in 2000.
- •Temperatures have reached 90°F or higher on August 27th in 13 of the last 55 years.
Frequently Asked Questions
What was the warmest August 27 ever in Hillsboro?
The warmest August 27 in Hillsboro, OR reached 100°F in 1986. That is 18°F above the long-term average high of 82°F.
What was the coldest August 27 ever in Hillsboro?
The coldest August 27 in Hillsboro, OR dropped to 40°F in 2000. That is 12°F below the long-term average low of 52°F.
What is the average temperature on August 27 in Hillsboro?
On August 27, Hillsboro averages a high of 82°F and a low of 52°F based on 55 years of NOAA weather observations from HILLSBORO.
How many years of weather data are available for August 27 in Hillsboro?
We have 55 years of weather records for August 27 in Hillsboro, OR, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 27 Weather History in Hillsboro
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 89°F | 64°F | 0.05" | -- |
| 2024 | 74°F | 50°F | 0" | -- |
| 2023 | 86°F | 60°F | 0" | -- |
| 2022 | 74°F | 53°F | 0" | -- |
| 2021 | 72°F | 54°F | 0" | -- |
| 2020 | 85°F | 47°F | 0" | -- |
| 2019 | 97°F | 54°F | 0" | -- |
| 2018 | 78°F | 56°F | 0" | -- |
| 2017 | 97°F | 51°F | 0" | -- |
| 2016 | 82°F | 53°F | 0" | -- |
| 2015 | 89°F | 50°F | 0" | -- |
| 2014 | 91°F | 57°F | 0" | -- |
| 2013 | 79°F | 61°F | 0.01" | -- |
| 2012 | 76°F | 47°F | 0" | -- |
| 2011 | 89°F | 54°F | 0" | -- |
| 2010 | 73°F | 45°F | 0" | -- |
| 2009 | 90°F | 48°F | 0" | -- |
| 2008 | 72°F | 52°F | 0" | -- |
| 2007 | 77°F | 44°F | 0" | -- |
| 2006 | 97°F | 51°F | 0" | -- |
| 2005 | 84°F | 46°F | 0" | -- |
| 2004 | 74°F | 55°F | 0" | -- |
| 2003 | 75°F | 59°F | 0" | -- |
| 2002 | 89°F | 53°F | 0" | -- |
| 2001 | 83°F | 52°F | 0" | -- |
| 2000 | 71°F | 40°F | 0" | -- |
| 1999 | 87°F | 53°F | 0" | -- |
| 1998 | 88°F | 55°F | 0" | -- |
| 1997 | 74°F | 56°F | 0.22" | -- |
| 1996 | 68°F | 50°F | 0" | -- |
| 1995 | 79°F | 53°F | 0" | -- |
| 1994 | 92°F | 50°F | 0.05" | -- |
| 1993 | 80°F | 45°F | 0" | -- |
| 1992 | 92°F | 48°F | 0" | -- |
| 1991 | 63°F | 55°F | 0.1" | -- |
| 1990 | 78°F | 54°F | 0" | -- |
| 1989 | 86°F | 50°F | 0" | -- |
| 1988 | 82°F | 53°F | 0" | -- |
| 1987 | 91°F | 54°F | 0" | -- |
| 1986 | 100°F | 58°F | 0" | -- |
| 1985 | 90°F | 49°F | 0" | -- |
| 1984 | 91°F | 50°F | 0" | -- |
| 1983 | 78°F | 54°F | 0" | -- |
| 1982 | 75°F | 54°F | 0" | -- |
| 1981 | 78°F | 42°F | 0" | -- |
| 1980 | 78°F | 47°F | 0" | -- |
| 1979 | 78°F | 52°F | 0" | -- |
| 1978 | 79°F | 48°F | 0" | -- |
| 1977 | 67°F | 51°F | 0" | -- |
| 1976 | 80°F | 56°F | 0" | -- |
| 1975 | 69°F | 56°F | 0.17" | -- |
| 1974 | 97°F | 61°F | 0" | -- |
| 1973 | 66°F | 52°F | 0" | -- |
| 1972 | 100°F | 56°F | 0" | -- |
| 1971 | 81°F | 48°F | 0" | -- |
Based on 55 years of data from NOAA station: HILLSBORO
Monthly Climate Averages
Historical temperature and precipitation averages for Hillsboro, OR, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.