TODAY NOV24
TEMPERATURE46
HUMIDITY82
PRESSURE100980
WIND COND.90 16.6
  • 4741Sun70%90%
  • 4940Mon90%70%
  • 4839Tue50%20%
  • 4734Wed
  • 4732
daynightWeather update from Portland, Portland-Troutdale Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Gresham for August is 68.9 degrees
  • The lowest monthly average temperature in Gresham for December is 39.8 degrees
  • The most monthly precipitation in Gresham occurs in November with 6.5 inches
  • The air quality index in Gresham is 10% better than the national average
  • The pollution index in Gresham is 789% worse than the national average

Compare Gresham, OR Weather

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      Gresham 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"

      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 index383242
      Pollution index24,235,4007,156,3562,726,193

      Gresham air quality

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      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

      CityPopulationAir Quality IndexNational Avg.
      Troutdale, OR16,4333824.0%
      Orchards, WA26,2893824.0%
      Lake Oswego, OR39,4763824.0%
      Oregon City, OR37,0573824.0%
      Stafford, OR1,9403824.0%
      Gresham, OR110,4563824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lakeland, FL110,3353628.0%
      Miami Gardens, FL110,7674118.0%
      Everett, WA110,8404510.0%
      Richmond, CA110,0514020.0%
      West Palm Beach, FL111,0063628.0%
      Gresham, OR110,4563824.0%
      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.