San Tan Valley, AZ Weather - Forecast & Monthly Averages

TEMPERATURE	70
HUMIDITY	17
PRESSURE	102240
WIND COND.	9.4

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Weather Quick Facts

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 50.7 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 76% worse than the national average
The pollution index in San Tan Valley is 49% worse than the national average

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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.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	39°F	66°F	51°F	4.9"
February	41°F	71°F	55°F	2.3"
March	47°F	78°F	62°F	4.3"
April	53°F	86°F	70°F	1.8"
May	61°F	94°F	78°F	2.3"
June	71°F	104°F	89°F	6.7"
July	80°F	105°F	92°F	6.0"
August	78°F	103°F	90°F	5.5"
September	72°F	98°F	85°F	28.8"
October	58°F	88°F	73°F	1.1"
November	47°F	76°F	61°F	2.4"
December	40°F	64°F	51°F	3.6"

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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.
Index	San Tan Valley	Arizona	National
Air quality index	74	57	42
Pollution index	4,063,380	9,766,019	2,726,193

San Tan Valley air quality

Measurement	Total
Days measured	365
Days with good air quality	50
Days with moderate air quality	261
Days w/ poor A.Q. for sensitive groups	42
Days with unhealthy air quality	2

Air quality details

Pollutant	Total
Arsenic	0.004%
Benzene	0.060%
Carbon Tetrachloride	0.010%
Lead	0.040%
Mercury	0.001%

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	Population	Air Quality Index	National Avg.
Maricopa Colony, AZ	818	74	48.0%
Blackwater, AZ	1,740	74	48.0%
Gilbert, AZ	248,349	74	48.0%
Queen Creek, AZ	52,162	74	48.0%
Florence, AZ	26,777	74	48.0%
San Tan Valley, AZ	104,936	74	48.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Clarington, ON	104,855	n/a
Brantford, ON	105,103	n/a
Wichita Falls, TX	104,657	26	48.0%
Norwalk, CA	104,524	72	44.0%
Green Bay, WI	104,508	36	28.0%
San Tan Valley, AZ	104,936	74	48.0%

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.