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This report describes the typical weather at the Grand Canyon National Park Airport (Grand Canyon National Park, Arizona, United States) weather station over the course of an average September. It is based on the historical records from 1981 to 2012. Earlier records are either unavailable or unreliable.he probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around September 2, occurring in 30% of days. Precipitation is least likely around September 30, occurring in 19% of days.
The highest monthly average temperature in Canyonville for July is 71 degrees. The lowest monthly average temperature in Canyonville for January is 40 degrees. The most monthly precipitation in Canyonville occurs in December with 6.1 inches. The air quality index in Canyonville is 39% better than the national average. The pollution index in Canyonville is 171% worse than the national average.