TODAY MAY27
TEMPERATURE72
HUMIDITY22
PRESSURE
WIND COND.335 2
  • 7451Wed
  • 7752Thu
  • 7854Fri20%
  • 7855Sat
  • 7654Sun
daynightWeather update from DW6226 Ridgway at
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Portland 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
January18°F36°F26°F0.9"
February20°F37°F28°F0.8"
March26°F44°F34°F2.4"
April31°F50°F40°F1.8"
May37°F59°F47°F2.4"
June49°F73°F61°F2.8"
July53°F75°F63°F2.1"
August51°F72°F60°F2.5"
September44°F67°F54°F2.2"
October36°F56°F45°F3.3"
November28°F46°F35°F0.6"
December19°F36°F27°F1.2"

Did you know?

  • The highest monthly average temperature in Portland for July is 63 degrees.
  • The lowest monthly average temperature in Portland for January is 26 degrees.
  • The most monthly precipitation in Portland occurs in October with 3.3 inches.
  • The air quality index in Portland is 14% better than the national average.
  • The pollution index in Portland is 95% better than the national average.

Compare Portland, CO Weather To Other Cities

      vs

      Portland 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.
      IndexPortlandColoradoNational
      Air quality index433850
      Pollution index262,4652,034,6195,066,862

      Portland air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality296
      Days with moderate air quality67
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Portland air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.003%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Portland temperature with heat index

      Portland monthly precipitation with daily maximum

      Portland monthly snow depth with daily maximum

      Portland monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Ouray, CO8494314%
      Ridgway, CO1,0124314%
      Loghill Village, CO4674314%
      Telluride, CO1,9724314%
      Mountain Village, CO1,5464314%
      Portland, CO1294314%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Pony, MT1292452%
      Hallett, OK129484%
      Bear Grass, NC129394%
      Formoso, KS129265430%
      Bee, OK129325550%
      Portland, CO1294314%
      Source: The Portland, CO 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.