All Countries
San Tan Valley, AZ
Full City Profile · Arizona · Pinal County County
3.3
/5.0
B
Good
105,231
Population
1,388/sq mi density
$93,642
Median Income
$35,614 per capita
$365,900
Home Value
$397,202 Zillow
$1,857
Median Rent
28.1% income on rent
73°F
Avg Temperature
346 sunny days/yr
128
Violent Crime/100K
598 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$93,642 median income, 2.7% unemployment
A
Affordability
4.5 / 5.0
$365,900 home value, $1,857/mo rent
F
Safety
1.0 / 5.0
128 violent crimes/100K
C+
Education
2.9 / 5.0
24.0% bachelor's degree or higher
San Tan Valley has a warm climate with an average annual temperature of 73°F (23°C). Winters average 49°F in January while summers reach 99°F in July. The area gets 346 sunny days per year. Annual precipitation totals 10.3 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 45.
Temperature
49°F Jan (10°C)
99°F Jul (37°C)
| Annual Average | 73.2°F |
| 36% above US avg | |
| January Average | 49°F (10°C) |
| July Average | 99°F (37°C) |
| Sunny Days | 346 days/yr |
Geography
| Elevation | 1,490 ft (454 m) |
| Area | 14.2 sq mi (36.7 km²) |
| Population Density | 1,388/sq mi |
| Coordinates | 33.1786°N, 111.5628°W |
| Timezone | America/Phoenix |
| County | Pinal County County |
| Nearest Airport | Phoenix Sky Harbor International (PHX) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0517 ppm |
| PM2.5 (Fine Particles) | 7.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.8 / 100 |
| Social Vulnerability | 43.7 / 100 |
| Community Resilience | 13.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Very Low |
| Lightning | Very High |
| Drought | Relatively High |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (10°C) | 1.0 in | Coldest |
| February | 56°F (13°C) | 1.0 in | |
| March | 60°F (16°C) | 1.3 in | |
| April | 67°F (19°C) | 0.4 in | |
| May | 75°F (24°C) | 0.2 in | |
| June | 84°F (29°C) | 0.1 in | Driest |
| July | 99°F (37°C) | 1.1 in | Warmest |
| August | 89°F (32°C) | 1.5 in | Wettest |
| September | 84°F (29°C) | 0.9 in | |
| October | 74°F (23°C) | 0.9 in | |
| November | 60°F (16°C) | 0.9 in | |
| December | 52°F (11°C) | 1.3 in |
San Tan Valley has a seasonal temperature swing of 50°F / from 49°F in January to 99°F in July. Total annual precipitation is 10.7 inches, with August being the wettest month (1.5") and June the driest (0.1").