TODAY NOV20
TEMPERATURE53
HUMIDITY77
PRESSURE29.9
WIND COND.300 6.9
  • 5236Wed
  • 5035Thu
  • 4835Fri
  • 4939Sat
  • 4839Sun
daynightWeather update from Portland, Portland-Troutdale Airport at
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Happy Valley 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
January36°F46°F40°F4.7"
February38°F51°F44°F3.2"
March40°F57°F47°F5.2"
April42°F63°F51°F3.6"
May48°F71°F58°F2.8"
June53°F76°F63°F2.1"
July56°F84°F69°F0.5"
August56°F85°F69°F0.4"
September52°F78°F64°F1.6"
October46°F65°F55°F4.5"
November42°F53°F47°F6.5"
December35°F45°F40°F5.1"

Did you know?

  • The highest monthly average temperature in Happy Valley for August is 69 degrees.
  • The lowest monthly average temperature in Happy Valley for December is 40 degrees.
  • The most monthly precipitation in Happy Valley occurs in November with 6.5 inches.
  • The air quality index in Happy Valley is 24% better than the national average.
  • The pollution index in Happy Valley is 378% worse than the national average.

Compare Happy Valley, OR Weather To Other Cities

Happy Valley 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.
IndexHappy ValleyOregonNational
Air quality index383250
Pollution index24,235,4005,374,5275,066,862

Happy Valley 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

Happy Valley air quality information

PollutantTotal
Arsenic0.020%
Benzene0.250%
Carbon Tetrachloride0.060%
Lead0.160%
Mercury0.090%

Average monthly Happy Valley temperature with heat index

Happy Valley monthly precipitation with daily maximum

Happy Valley monthly snow depth with daily maximum

Happy Valley monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Beavercreek, OR4,0343824%
Cedar Mill, OR15,9933824%
Fairview, OR9,2153824%
Jennings Lodge, OR7,7273824%
Maywood Park, OR9393824%
Happy Valley, OR17,4743824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
South Houston, TX17,474524%
Greenfield Town, MA17,4773628%
Lindenwold, NJ17,4825714%
Jenison, MI17,4613922%
Tallmadge, OH17,4883432%
Happy Valley, OR17,4743824%
Source: The Happy Valley, 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.
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