Rosendahl / Public domain
Hillsboro, OR Weather on October 11
October 11th in Hillsboro, OR typically brings mild fall weather, with average highs around 66°F and lows near 41°F — a 25°F daily swing. Over 55 years of records, the warmest October 11th was in 1991 (65°F average), while the coldest was 2009 (44°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 35% of October 11th dates historically. Temperatures on this date have remained relatively stable over the past several decades.
What to Expect on October 11
Planning for October 11th in Hillsboro, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
October 11 Weather Records for Hillsboro
- •The all-time record high for October 11th in Hillsboro, OR is 87°F, set in 1991.
- •The coldest October 11th on record dropped to 29°F in 2009.
- •A freeze (32°F or below) has occurred on October 11th in 3 of the last 55 years.
Frequently Asked Questions
What was the warmest October 11 ever in Hillsboro?
The warmest October 11 in Hillsboro, OR reached 87°F in 1991. That is 21°F above the long-term average high of 66°F.
What was the coldest October 11 ever in Hillsboro?
The coldest October 11 in Hillsboro, OR dropped to 29°F in 2009. That is 12°F below the long-term average low of 41°F.
What is the average temperature on October 11 in Hillsboro?
On October 11, Hillsboro averages a high of 66°F and a low of 41°F based on 55 years of NOAA weather observations from HILLSBORO.
How many years of weather data are available for October 11 in Hillsboro?
We have 55 years of weather records for October 11 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.
October 11 Weather History in Hillsboro
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 59°F | 48°F | 0.04" | -- |
| 2024 | 69°F | 39°F | 0" | -- |
| 2023 | 64°F | 49°F | 0.23" | -- |
| 2022 | 73°F | 43°F | 0" | -- |
| 2021 | 59°F | 34°F | 0" | -- |
| 2020 | 61°F | 49°F | 0.3" | -- |
| 2019 | 66°F | 31°F | 0" | -- |
| 2018 | 70°F | 38°F | 0" | -- |
| 2017 | 59°F | 36°F | 0.13" | -- |
| 2016 | 66°F | 35°F | 0" | -- |
| 2015 | 65°F | 45°F | 0" | -- |
| 2014 | 72°F | 50°F | 0.22" | -- |
| 2013 | 59°F | 42°F | 0" | -- |
| 2012 | 68°F | 34°F | 0" | -- |
| 2011 | 62°F | 49°F | 0.19" | -- |
| 2010 | 62°F | 39°F | 0" | -- |
| 2009 | 58°F | 29°F | 0" | -- |
| 2008 | 62°F | 30°F | 0" | -- |
| 2007 | 58°F | 35°F | 0.02" | -- |
| 2006 | 76°F | 36°F | 0" | -- |
| 2005 | 67°F | 39°F | 0.01" | -- |
| 2004 | 71°F | 41°F | 0" | -- |
| 2003 | 53°F | 47°F | 0.39" | -- |
| 2002 | 64°F | 37°F | 0" | -- |
| 2001 | 58°F | 39°F | 0.32" | -- |
| 2000 | 60°F | 50°F | 0" | -- |
| 1999 | 65°F | 39°F | 0" | -- |
| 1998 | 65°F | 49°F | 0.11" | -- |
| 1997 | 60°F | 44°F | 0.01" | -- |
| 1996 | 67°F | 48°F | 0.02" | -- |
| 1995 | 59°F | 43°F | 0.3" | -- |
| 1994 | 62°F | 36°F | 0" | -- |
| 1993 | 68°F | 43°F | 0" | -- |
| 1992 | 77°F | 43°F | 0" | -- |
| 1991 | 87°F | 42°F | 0" | -- |
| 1990 | 62°F | 35°F | 0" | -- |
| 1989 | 62°F | 44°F | 0.01" | -- |
| 1988 | 78°F | 47°F | 0" | -- |
| 1987 | 79°F | 37°F | 0" | -- |
| 1986 | 73°F | 40°F | 0" | -- |
| 1985 | 61°F | 41°F | 0.14" | -- |
| 1984 | 57°F | 49°F | 0.22" | -- |
| 1983 | 69°F | 36°F | 0" | -- |
| 1982 | 72°F | 40°F | 0" | -- |
| 1981 | 62°F | 35°F | 0" | -- |
| 1980 | 73°F | 41°F | 0" | -- |
| 1979 | 80°F | 40°F | 0" | -- |
| 1978 | 68°F | 47°F | 0" | -- |
| 1977 | 73°F | 38°F | 0" | -- |
| 1976 | 70°F | 48°F | 0.01" | -- |
| 1975 | 63°F | 43°F | 0" | -- |
| 1974 | 73°F | 52°F | 0" | -- |
| 1973 | 58°F | 40°F | 0" | -- |
| 1972 | 62°F | 42°F | 0.15" | -- |
| 1971 | 64°F | 52°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.