TODAY AUG20
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 855720%20%
  • 7655Tue50%30%
  • 7754Wed60%20%
  • 7653Thu40%
  • 7753Fri40%
daynightWeather update from Flagstaff Pulliam Airport at

Flagstaff 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
January16°F45°F29°F2.4"
February18°F48°F33°F2.0"
March23°F55°F39°F1.5"
April26°F62°F45°F0.9"
May33°F69°F53°F0.8"
June42°F81°F64°F0.4"
July51°F83°F67°F3.5"
August50°F80°F64°F3.7"
September42°F75°F58°F1.8"
October31°F66°F48°F1.3"
November23°F56°F38°F1.2"
December15°F46°F30°F2.6"

Did you know?

  • The highest monthly average temperature in Flagstaff for July is 67 degrees.
  • The lowest monthly average temperature in Flagstaff for January is 29 degrees.
  • The most monthly precipitation in Flagstaff occurs in August with 3.7 inches.
  • The air quality index in Flagstaff is 15% better than the national average.
  • The pollution index in Flagstaff is 201% worse than the national average.

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Compare Flagstaff, AZ Weather To Other Cities

Flagstaff 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.
IndexFlagstaffArizonaNational
Air quality index425750
Pollution index15,258,3005,576,4945,066,862

Flagstaff air quality information

MeasurementTotal
Days measured365
Days with good air quality316
Days with moderate air quality49
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Flagstaff air quality information

PollutantTotal
Arsenic0.430%
Benzene0.060%
Carbon Tetrachloride0.010%
Lead0.130%
Mercury0.150%

Average monthly Flagstaff temperature with heat index

Flagstaff monthly precipitation with daily maximum

Flagstaff monthly snow depth with daily maximum

Flagstaff monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Mountainaire, AZ1,1504216%
Doney Park, AZ5,7754216%
Fort Valley, AZ1,1574216%
Kachina Village, AZ2,5884216%
Flagstaff, AZ69,2704216%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Palatine, IL69,0986020%
The Villages, FL69,4573530%
Glen Burnie, MD69,060468%
Rancho Cordova, CA69,4825510%
Bismarck, ND68,9813432%
Flagstaff, AZ69,2704216%
Source: The Flagstaff, AZ 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.