TODAY SEP18
TEMPERATURE90
HUMIDITY31
PRESSURE29.84
WIND COND.20 4.7
  • 9377Wed50%50%
  • 9780Thu20%
  • 9880Fri
  • 10179Sat
  • 10379Sun
daynightWeather update from Phoenix, Phoenix Sky Harbor International Airport at
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South Mountain 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 South Mountain for July is 96 degrees.
  • The lowest monthly average temperature in South Mountain for December is 55 degrees.
  • The most monthly precipitation in South Mountain occurs in August with 1.4 inches.
  • The air quality index in South Mountain is 48% worse than the national average.
  • The pollution index in South Mountain is 19% better than the national average.

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South Mountain 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.
IndexSouth MountainPhoenixArizona
Air quality index747457
Pollution index4,063,3804,063,3805,576,494

South Mountain 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

South Mountain air quality information

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

Average monthly South Mountain temperature with heat index

South Mountain monthly precipitation with daily maximum

South Mountain monthly snow depth with daily maximum

South Mountain monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Chandler, AZ242,1317448%
Guadalupe, AZ6,1727448%
Peoria, AZ158,6777448%
Tempe, AZ174,7087448%
Gila Crossing, AZ8487448%
Phoenix, AZ1,555,3247448%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Philadelphia, PA1,559,9385714%
San Antonio, TX1,439,3584510%
San Diego, CA1,374,8126122%
Dallas, TX1,278,433548%
San Jose, CA1,009,363484%
Phoenix, AZ1,555,3247448%
Source: The South Mountain, Phoenix, 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.