Surprise, AZ has a hot and dry climate with mild winters and scorching summers. During the summer months, temperatures often reach over 100 degrees Fahrenheit with very low humidity. Winter months are generally mild, with temperatures usually ranging between 50-70 degrees Fahrenheit. The city experiences an average of 8 inches of rain annually spread out over 4 months; April through July are typically the wettest months in Surprise, AZ.
Surprise, Arizona gets 9 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Surprise averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 301 sunny days per year in Surprise. The US average is 205 sunny days.
Surprise gets some kind of precipitation, on average, 32 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 106 degrees
Winter Low: the January low is 42
Rain: averages 9 inches of rain a year
Snow: averages 0 inches of snow a year