The highest day temperature in May 2024 was 82°F. The lowest night temperature was 30°F. The average values for day and night temperatures during May were 67.1°F и 45.3°F respectivly.

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation total in May for Flagstaff is 0.5 in. It makes may one of the least rainy months of the year.

The average wind speed in May is 9.0 mph. It makes May the most windy month of the year for Flagstaff.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Flagstaff in May is 12.4 hours.