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San Tan Valley, AZ weather and climate

Pinal County, AZ · population 105,231 · about 1,490 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at San Tan Valley's own coordinates.

The year at a glance

Sunny days
306
clear or partly cloudy, per year
Precipitation
10 in
per year
Wet days
35
rain or snow per year
Snowfall
0 in
per year
Hot days
168
above 90 °F
Freezing nights
14
at or below 32 °F
Humidity
35%
average relative
Average temperature
72 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
406080100JanMarMayJulSepNovDaily high, Jan: 66 °FDaily high, Feb: 70 °FDaily high, Mar: 77 °FDaily high, Apr: 85 °FDaily high, May: 94 °FDaily high, Jun: 103 °FDaily high, Jul: 105 °FDaily high, Aug: 103 °FDaily high, Sep: 99 °FDaily high, Oct: 88 °FDaily high, Nov: 75 °FDaily high, Dec: 65 °FDaily low, Jan: 40 °FDaily low, Feb: 43 °FDaily low, Mar: 48 °FDaily low, Apr: 53 °FDaily low, May: 61 °FDaily low, Jun: 70 °FDaily low, Jul: 78 °FDaily low, Aug: 77 °FDaily low, Sep: 71 °FDaily low, Oct: 59 °FDaily low, Nov: 47 °FDaily low, Dec: 39 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high667077859410310510399887565
Daily low404348536170787771594739

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.00.51.01.5JanMarMayJulSepNovSan Tan Valley, Jan: 1.5 inSan Tan Valley, Feb: 1.6 inSan Tan Valley, Mar: 1.1 inSan Tan Valley, Apr: 0.3 inSan Tan Valley, May: 0.2 inSan Tan Valley, Jun: 0.1 inSan Tan Valley, Jul: 0.8 inSan Tan Valley, Aug: 1.1 inSan Tan Valley, Sep: 1.0 inSan Tan Valley, Oct: 0.7 inSan Tan Valley, Nov: 0.7 inSan Tan Valley, Dec: 1.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Tan Valley1.51.61.10.30.20.10.81.11.00.70.71.3

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovSan Tan Valley, Jan: 23 daysSan Tan Valley, Feb: 21 daysSan Tan Valley, Mar: 25 daysSan Tan Valley, Apr: 27 daysSan Tan Valley, May: 28 daysSan Tan Valley, Jun: 28 daysSan Tan Valley, Jul: 24 daysSan Tan Valley, Aug: 25 daysSan Tan Valley, Sep: 28 daysSan Tan Valley, Oct: 28 daysSan Tan Valley, Nov: 25 daysSan Tan Valley, Dec: 24 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Tan Valley232125272828242528282524

Compare San Tan Valley with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Arizona city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).