TODAY OCT22
TEMPERATURE73
HUMIDITY55
PRESSURE29.85
WIND COND.90 5.8
  • 8568Mon20%
  • 8565Tue20%
  • 8464Wed
  • 8463Thu
  • 8663Fri
daynightWeather update from Phoenix, Phoenix Sky Harbor International Airport at
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Southwest Average Temperature

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
January45°F69°F56°F0.8"
February48°F74°F60°F0.7"
March54°F81°F67°F0.5"
April60°F88°F74°F0.2"
May68°F96°F83°F0.2"
June79°F107°F94°F0.0"
July84°F108°F96°F0.9"
August83°F107°F94°F1.4"
September77°F102°F89°F0.8"
October65°F92°F78°F0.2"
November54°F80°F66°F0.4"
December45°F69°F55°F0.9"

Did you know?

  • The highest monthly average temperature in Southwest for July is 96 degrees.
  • The lowest monthly average temperature in Southwest for December is 55 degrees.
  • The most monthly precipitation in Southwest occurs in August with 1.4 inches.
  • The air quality index in Southwest is 48% worse than the national average.
  • The pollution index in Southwest is 19% better than the national average.

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Compare Mesa, AZ Weather To Other Cities

Southwest 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.
IndexSouthwestMesaArizona
Air quality index747457
Pollution index4,063,3804,063,3805,576,494

Southwest 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

Southwest air quality information

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

Average monthly Southwest temperature with heat index

Southwest monthly precipitation with daily maximum

Southwest monthly snow depth with daily maximum

Southwest monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Fountain Hills, AZ23,8637448%
Paradise Valley, AZ13,8337448%
Sun Lakes, AZ14,8287448%
Gilbert, AZ226,8327448%
Phoenix, AZ1,555,3247448%
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 Southwest, 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.