TODAY JUN20
TEMPERATURE86
HUMIDITY42
PRESSURE29.88
WIND COND. 3.4
  • 7556Thu
  • 7355Fri
  • 7754Sat
  • 8154Sun
  • 7552Mon
daynightWeather update from Portland, Portland-Troutdale Airport at

Gresham Average Weather

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
January21°F67°F40°F5.4"
February18°F65°F43°F2.2"
March28°F76°F46°F4.4"
April27°F81°F50°F3.5"
May34°F92°F58°F2.7"
June44°F102°F62°F2.0"
July45°F106°F69°F0.5"
August44°F102°F67°F0.8"
September38°F93°F62°F0.9"
October30°F76°F53°F3.3"
November28°F68°F46°F7.0"
December17°F63°F38°F5.4"

Did you know?

  • The highest monthly average temperature in Gresham for July is 69 degrees.
  • The lowest monthly average temperature in Gresham for December is 38 degrees.
  • The most monthly precipitation in Gresham occurs in November with 7 inches.
  • The air quality index in Gresham is 23% better than the national average.
  • The pollution index in Gresham is 378% worse than the national average.

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Compare Gresham, OR Weather To Other Cities

Gresham 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.
IndexGreshamOregonNational
Air quality index383250
Pollution index24,235,4005,374,5275,066,862

Gresham 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

Gresham air quality information

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

Average monthly Gresham temperature with heat index

Gresham monthly precipitation with daily maximum

Gresham monthly snow depth with daily maximum

Gresham monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
West Linn, OR26,2423824%
Felida, WA7,8573824%
Lake Shore, WA7,2473824%
Vancouver, WA169,9823824%
Fairview, OR9,2153824%
Gresham, OR110,0423824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Lowell, MA109,8713628%
Manchester, NH110,2313628%
Brandon, FL109,7844314%
Waterbury, CT109,211492%
West Jordan, UT110,928476%
Gresham, OR110,0423824%
Source: The Gresham, 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.