The temperatures in Flagstaff in May are quite cold with temperatures between 7°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Flagstaff during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Flagstaff can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Flagstaff in May 2025.
If you’re planning to visit Flagstaff in the near future, we highly recommend that you review the 14 day weather forecast for Flagstaff before you arrive.
Temperatures
20° / 7°
Rainy Days
3
Snowy Days
1
Dry Days
27
Rainfall
24
mm
Sun Hours
11.8
Hrs
