TODAY DEC17
TEMPERATURE27
HUMIDITY92
PRESSURE
WIND COND.184
  • 3016Tue
  • 2813Wed20%
  • 3518Thu
  • 3817Fri
  • 3314Sat
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 13% better than the national average.
  • The pollution index in Portland is 94% better than the national average.

Real Estate Listings In Portland

Compare Portland, CO Weather To Other Cities

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.
Mountain Village, CO1,5464314%
Ouray, CO8494314%
Ridgway, CO1,0124314%
Loghill Village, CO4674314%
Telluride, CO1,9724314%
Portland, CO1294314%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Woodcock, PA129484%
Pony, MT1292452%
Bear Grass, NC129394%
La Minita, TX1293628%
Formoso, KS129265430%
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.