Sierra Vista, AZ is located in the Sonoran Desert and has a hot, dry climate. The average high temperature in winter is usually in the mid-60s, with lows at night dropping to the 40s. Summers are hot and sunny, with temperatures easily reaching into the 100s on some days and sometimes staying there for multiple days. Although it can be quite hot and dry during summer months, Sierra Vista experiences monsoon season from mid-July until late August or early September which brings much needed rain.
Sierra Vista, Arizona gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sierra Vista averages 1 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 284 sunny days per year in Sierra Vista. The US average is 205 sunny days.
Sierra Vista gets some kind of precipitation, on average, 53 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 92 degrees
Winter Low: the January low is 34
Rain: averages 15 inches of rain a year
Snow: averages 1 inches of snow a year