Grand Junction, CO Weather - Forecast & Monthly Averages

TEMPERATURE	36
HUMIDITY	50
PRESSURE
WIND COND.	110 7.6

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Weather Quick Facts

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 5% worse than the national average
The pollution index in Grand Junction is 75% better than the national average

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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.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	15°F	38°F	26°F	0.7"
February	23°F	48°F	34°F	0.5"
March	30°F	60°F	45°F	0.6"
April	36°F	68°F	52°F	1.0"
May	45°F	78°F	62°F	0.9"
June	56°F	91°F	75°F	0.5"
July	63°F	96°F	79°F	0.9"
August	60°F	92°F	76°F	1.0"
September	52°F	84°F	67°F	1.3"
October	39°F	69°F	53°F	1.0"
November	27°F	55°F	40°F	0.6"
December	16°F	39°F	27°F	0.9"

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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.
Index	Grand Junction	Colorado	National
Air quality index	44	38	42
Pollution index	685,743	2,068,342	2,726,193

Grand Junction air quality

Measurement	Total
Days measured	364
Days with good air quality	289
Days with moderate air quality	75
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.010%
Carbon Tetrachloride	0.002%
Lead	0.010%
Mercury	0.000%

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	Population	Air Quality Index	National Avg.
Fruitvale, CO	8,352	44	12.0%
Orchard Mesa, CO	6,484	44	12.0%
Loma, CO	1,571	44	12.0%
Clifton, CO	20,783	44	12.0%
Palisade, CO	2,783	44	12.0%
Grand Junction, CO	62,218	44	12.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Hamilton, OH	62,162	54	8.0%
Doral, FL	62,367	41	18.0%
Council Bluffs, IA	62,376	40	20.0%
Idaho Falls, ID	62,417	27	46.0%
North Miami, FL	62,468	41	18.0%
Grand Junction, CO	62,218	44	12.0%

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.