TODAY JUL21
TEMPERATURE101
HUMIDITY29
PRESSURE29.79
WIND COND.230 8.1
  • 10284Sat
  • 10686Sun
  • 11089Mon
  • 11389Tue
  • 11187Wed
daynightWeather update from Phoenix, Phoenix Sky Harbor International Airport at

Northwest 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
January25°F79°F55°Fn/a
February34°F84°F59°Fn/a
March37°F97°F65°Fn/a
April46°F97°F73°Fn/a
May52°F108°F85°Fn/a
June68°F113°F94°Fn/a
July70°F115°F96°Fn/a
August70°F113°F93°Fn/a
September64°F108°F89°Fn/a
October46°F99°F78°Fn/a
November32°F93°F68°Fn/a
December32°F77°F54°Fn/a

Did you know?

  • The highest monthly average temperature in Northwest for July is 96 degrees.
  • The lowest monthly average temperature in Northwest for December is 54 degrees.
  • The most monthly precipitation in Northwest occurs in January with 0 inches.
  • The air quality index in Northwest is 48% worse than the national average.
  • The pollution index in Northwest is 19% better than the national average.

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Compare Mesa, AZ Weather To Other Cities

Northwest 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.
IndexNorthwestMesaArizona
Air quality index747457
Pollution index4,063,3804,063,3805,576,494

Northwest air quality information

MeasurementTotal
Days measured365
Days with good air quality36
Days with moderate air quality242
Days w/ poor A.Q. for sensitive groups60
Days with unhealthy air quality19

Northwest air quality information

PollutantTotal
Arsenic0.004%
Benzene0.060%
Carbon Tetrachloride0.010%
Lead0.040%
Mercury0.001%

Average monthly Northwest temperature with heat index

Northwest monthly precipitation with daily maximum

Northwest monthly snow depth with daily maximum

Northwest monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Guadalupe, AZ6,1727448%
Queen Creek, AZ30,8497448%
Chandler, AZ242,1317448%
Maricopa Colony, AZ1,0277448%
Scottsdale, AZ234,4957448%
Mesa, AZ470,4567448%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Long Beach, CA469,7937448%
Kansas City, MO471,7675816%
Sacramento, CA484,5305510%
Atlanta, GA456,378524%
Virginia Beach, VA449,7333922%
Mesa, AZ470,4567448%
Source: The Northwest, Mesa, 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.