Flagstaff, AZ has a moderate climate with four distinct seasons. Summers are mild and pleasant, with average temperatures in the upper 80s during the day and low 50s at night. Winters are cold and snowfall is common, with average temperatures in the mid-30s during the day and low teens at night. The monsoon season runs from mid-July to late August when afternoon rains cool things off a bit. Spring and fall are usually mild and dry, making them perfect times to explore Flagstaff's great outdoors.
Flagstaff, Arizona gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Flagstaff averages 81 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 266 sunny days per year in Flagstaff. The US average is 205 sunny days.
Flagstaff gets some kind of precipitation, on average, 83 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 82 degrees
Winter Low: the January low is 14
Rain: averages 21 inches of rain a year
Snow: averages 81 inches of snow a year