TODAY NOV25
TEMPERATURE43
HUMIDITY45
PRESSURE102440
WIND COND.140 14.8
  • 5232Tue30%80%
  • 3718Wed60%30%
  • 3915
  • 4219Fri
  • 3916Sat
daynightWeather update from Broomfield / Jeffco at
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Weather Quick Facts

  • The highest monthly average temperature in Northwestern Denver for July is 73.1 degrees
  • The lowest monthly average temperature in Northwestern Denver for December is 29.8 degrees
  • The most monthly precipitation in Northwestern Denver occurs in September with 5.7 inches
  • The air quality index in Northwestern Denver is 38% worse than the national average
  • The pollution index in Northwestern Denver is 25% better than the national average

Compare Denver, CO Weather

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      Northwestern Denver 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
      January21°F45°F31°F1.8"
      February22°F46°F32°F2.0"
      March30°F58°F42°F2.1"
      April35°F63°F47°F4.0"
      May44°F70°F55°F5.2"
      June54°F84°F68°F4.6"
      July60°F89°F73°F5.7"
      August59°F87°F71°F4.5"
      September51°F79°F63°F5.7"
      October39°F67°F51°F4.1"
      November29°F56°F41°F2.2"
      December19°F44°F30°F2.9"

      Northwestern Denver 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.
      IndexNorthwestern DenverDenverColorado
      Air quality index585838
      Pollution index2,055,3309,869,2402,068,342

      Northwestern Denver air quality

      MeasurementTotal
      Days measured365
      Days with good air quality91
      Days with moderate air quality252
      Days w/ poor A.Q. for sensitive groups20
      Days with unhealthy air quality2

      Air quality details

      PollutantTotal
      Arsenic0.060%
      Benzene0.140%
      Carbon Tetrachloride0.000%
      Lead0.030%
      Mercury0.030%

      Average monthly Northwestern Denver temperature with heat index

      Northwestern Denver monthly precipitation with daily maximum

      Northwestern Denver monthly snow depth with daily maximum

      Northwestern Denver monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Superior, CO13,292476.0%
      Paragon Estates, CO785476.0%
      Lafayette, CO27,952476.0%
      Broomfield, CO69,444476.0%
      Louisville, CO19,342476.0%
      Denver, CO715,8785816.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Washington, DC701,974476.0%
      Brampton, ON735,754n/a 
      Vancouver, BC694,440n/a 
      Seattle, WA741,2514510.0%
      Boston, MA689,3264314.0%
      Denver, CO715,8785816.0%
      Source: The Northwestern Denver, Denver, 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.