TODAY DEC15
TEMPERATURE50
HUMIDITY46
PRESSURE30.19
WIND COND.100 4.7
  • 7143Sat
  • 7244Sun
  • 6943Mon
  • 6640Tue
  • 7042Wed
daynightWeather update from Phoenix-Mesa Gateway Airport at

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San Tan Valley 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
January39°F66°F51°F4.9"
February41°F71°F55°F2.3"
March47°F78°F62°F4.3"
April53°F86°F70°F1.8"
May61°F94°F78°F2.3"
June71°F104°F89°F6.7"
July80°F105°F92°F6.0"
August78°F103°F90°F5.5"
September72°F98°F85°F28.8"
October58°F88°F73°F1.1"
November47°F76°F61°F2.4"
December40°F64°F51°F3.6"

Did you know?

  • The highest monthly average temperature in San Tan Valley for July is 92 degrees.
  • The lowest monthly average temperature in San Tan Valley for December is 51 degrees.
  • The most monthly precipitation in San Tan Valley occurs in September with 28.8 inches.
  • The air quality index in San Tan Valley is 48% worse than the national average.
  • The pollution index in San Tan Valley is 19% better than the national average.

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Compare San Tan Valley, AZ Weather To Other Cities

San Tan Valley 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.
IndexSan Tan ValleyArizonaNational
Air quality index745750
Pollution index4,063,3805,576,4945,066,862

San Tan Valley 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

San Tan Valley air quality information

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

Average monthly San Tan Valley temperature with heat index

San Tan Valley monthly precipitation with daily maximum

San Tan Valley monthly snow depth with daily maximum

San Tan Valley monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Blackwater, AZ1,4627448%
Lower Santan Village, AZ6047448%
Sacaton, AZ2,7877448%
Florence, AZ26,2217448%
Maricopa Colony, AZ1,0277448%
San Tan Valley, AZ88,5077448%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Toms River, NJ88,5374020%
Edmond, OK88,342476%
Newton, MA88,317476%
Meridian, ID88,2473628%
Waukegan, IL88,1593530%
San Tan Valley, AZ88,5077448%
Source: The San Tan Valley, 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.