TODAY MAY14
TEMPERATURE55
HUMIDITY31
PRESSURE30.05
WIND COND.110 14.8
  • 8754Sat
  • 8554Sun
  • 7952Mon
  • 7953Tue
  • 8253Wed
daynightWeather update from Grand Junction Regional Airport at

Key findings

  • The highest monthly average temperature in Grand Junction for July is 79.5 degrees
  • The lowest monthly average temperature in Grand Junction for January is 25.6 degrees
  • The most monthly precipitation in Grand Junction occurs in September with 1.3 inches
  • The air quality index in Grand Junction is 12% better than the national average
  • The pollution index in Grand Junction is 86% better than the national average

Compare Grand Junction, CO Weather

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      Grand Junction 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
      January15°F38°F26°F0.7"
      February23°F48°F34°F0.5"
      March30°F60°F45°F0.6"
      April36°F68°F52°F1.0"
      May45°F78°F62°F0.9"
      June56°F91°F75°F0.5"
      July63°F96°F79°F0.9"
      August60°F92°F76°F1.0"
      September52°F84°F67°F1.3"
      October39°F69°F53°F1.0"
      November27°F55°F40°F0.6"
      December16°F39°F27°F0.9"

      Grand Junction 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.
      IndexGrand JunctionColoradoNational
      Air quality index443850
      Pollution index685,7432,034,6195,066,862

      Grand Junction air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality289
      Days with moderate air quality75
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Grand Junction air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.000%

      Average monthly Grand Junction temperature with heat index

      Grand Junction monthly precipitation with daily maximum

      Grand Junction monthly snow depth with daily maximum

      Grand Junction monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Orchard Mesa, CO6,4974412%
      Loma, CO1,3894412%
      Clifton, CO20,0214412%
      Palisade, CO2,6304412%
      Fruita, CO12,7904412%
      Grand Junction, CO60,6304412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Springfield, OR60,6113824%
      Jupiter, FL60,5973628%
      West Allis, WI60,5434412%
      Malden, MA60,7324314%
      Rocklin, CA60,509524%
      Grand Junction, CO60,6304412%
      Source: The Grand Junction, 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.