TODAY AUG16
TEMPERATURE76
HUMIDITY30
PRESSURE30.09
WIND COND.60 4.7
  • 9466Thu
  • 9566Fri
  • 9461Sat
  • 9360Sun
  • 9564Mon
daynightWeather update from Grand Junction Regional Airport at

Grand Junction Average Weather

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"

Did you know?

  • The highest monthly average temperature in Grand Junction for July is 79 degrees.
  • The lowest monthly average temperature in Grand Junction for January is 26 degrees.
  • The most monthly precipitation in Grand Junction occurs in September with 1.3 inches.
  • The air quality index in Grand Junction is 17% better than the national average.
  • The pollution index in Grand Junction is 86% better than the national average.

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Compare Grand Junction, CO Weather To Other Cities

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 index413850
Pollution index685,7432,034,6195,066,862

Grand Junction air quality information

MeasurementTotal
Days measured365
Days with good air quality314
Days with moderate air quality47
Days w/ poor A.Q. for sensitive groups4
Days with unhealthy air quality

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.
Fruitvale, CO7,8544118%
Redlands, CO9,1874118%
Loma, CO1,3894118%
Clifton, CO20,0214118%
Orchard Mesa, CO6,4974118%
Grand Junction, CO60,6304118%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Springfield, OR60,6113628%
Jupiter, FL60,5972942%
West Allis, WI60,5434510%
Malden, MA60,732476%
Rocklin, CA60,5095510%
Grand Junction, CO60,6304118%
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.