TODAY NOV23
TEMPERATURE51
HUMIDITY20
PRESSURE
WIND COND.133 3.3
  • 5133Sat
  • 4827Sun20%
  • 4234Mon20%
  • 4432Tue
  • 4021Wed
daynightWeather update from CAPITOL REEF NP at
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Weather Quick Facts

  • The highest monthly average temperature in Boulder for July is 64.5 degrees
  • The lowest monthly average temperature in Boulder for January is 20 degrees
  • The most monthly precipitation in Boulder occurs in September with 2 inches
  • The air quality index in Boulder is 9% worse than the national average
  • The pollution index in Boulder is 82% better than the national average

Compare Boulder, UT Weather

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      Boulder 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
      January5°F36°F20°F0.8"
      February10°F39°F25°F0.6"
      March17°F47°F32°F0.9"
      April23°F56°F39°F0.7"
      May30°F65°F48°F0.8"
      June36°F78°F59°F0.4"
      July47°F82°F64°F1.8"
      August44°F79°F61°F1.7"
      September36°F72°F54°F2.0"
      October27°F60°F42°F1.7"
      November16°F49°F31°F0.5"
      December6°F37°F21°F0.9"

      Boulder 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.
      IndexBoulderUtahNational
      Air quality index464542
      Pollution index488,0323,340,3692,726,193

      Boulder air quality

      MeasurementTotal
      Days measured365
      Days with good air quality265
      Days with moderate air quality99
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.003%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.001%

      Average monthly Boulder temperature with heat index

      Boulder monthly precipitation with daily maximum

      Boulder monthly snow depth with daily maximum

      Boulder monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Escalante, UT6934412.0%
      Boulder, UT400468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Edmondson, AR4004510.0%
      Terminous, CA4004510.0%
      Cloud Lake, FL4003628.0%
      Lakota, IA4001570.0%
      Arenzville, IL4004020.0%
      Boulder, UT400468.0%
      Source: The Boulder, UT 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.