TODAY NOV17
TEMPERATURE41
HUMIDITY82
PRESSURE30.19
WIND COND.330 5.8
  • 5330Sat
  • 5529Sun
  • 5634Mon
  • 5238Tue
  • 5141Wed
daynightWeather update from Portland, Portland-Hillsboro Airport at

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Hillsboro Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January32°F47°F38°F4.1"
February33°F53°F42°F3.0"
March38°F60°F48°F4.8"
April39°F61°F50°F2.9"
May45°F70°F57°F4.8"
June48°F72°F59°F2.1"
July53°F83°F68°F1.3"
August51°F84°F67°F1.2"
September44°F75°F59°F2.8"
October42°F61°F50°F3.8"
November33°F52°F42°F7.5"
December33°F45°F39°F11.3"

Did you know?

  • The highest monthly average temperature in Hillsboro for July is 68 degrees.
  • The lowest monthly average temperature in Hillsboro for January is 38 degrees.
  • The most monthly precipitation in Hillsboro occurs in December with 11.3 inches.
  • The air quality index in Hillsboro is 23% better than the national average.
  • The pollution index in Hillsboro is 198% worse than the national average.

Real Estate Listings In Hillsboro

Compare Hillsboro, OR Weather To Other Cities

Hillsboro air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexHillsboroOregonNational
Air quality index383250
Pollution index15,149,9005,374,5275,066,862

Hillsboro air quality information

MeasurementTotal
Days measured365
Days with good air quality241
Days with moderate air quality108
Days w/ poor A.Q. for sensitive groups12
Days with unhealthy air quality4

Hillsboro air quality information

PollutantTotal
Arsenic0.010%
Benzene0.160%
Carbon Tetrachloride0.030%
Lead0.080%
Mercury0.010%

Average monthly Hillsboro temperature with heat index

Hillsboro monthly precipitation with daily maximum

Hillsboro monthly snow depth with daily maximum

Hillsboro monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Aloha, OR54,9083824%
Bull Mountain, OR9,6843824%
Durham, OR1,4173824%
King City, OR3,5993824%
North Plains, OR2,0723824%
Hillsboro, OR100,4623824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Jurupa Valley, CA100,7378570%
Erie, PA100,157484%
South Bend, IN101,037512%
Kenosha, WI99,8653530%
Las Cruces, NM101,459512%
Hillsboro, OR100,4623824%
Source: The Hillsboro, OR weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.