The climate in 85143 San Tan Valley, AZ is generally warm and sunny year round. The area has hot summers, with average highs in the mid 90s and lows around 70 degrees. Winters are mild, with temperatures ranging from the upper 40s to mid 60s. Rainfall is fairly low throughout the year, typically averaging around 8 inches annually. Humidity levels remain relatively low throughout the year as well, usually around 50%. With plenty of sunshine to enjoy every day, it's no wonder why so many people choose to make San Tan Valley their home.
San Tan Valley (zip 85143), Arizona gets 10 inches of rain, on average, per year. The US average is 38 inches of rain per year.
San Tan Valley (zip 85143) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 292 sunny days per year in San Tan Valley (zip 85143). The US average is 205 sunny days.
San Tan Valley (zip 85143) gets some kind of precipitation, on average, 33 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 105 degrees
Winter Low: the January low is 39
Rain: averages 10 inches of rain a year
Snow: averages 0 inches of snow a year