June
Best time
27.5°C / 13.3°C
3 rain days
warm, dry
- very low rainfall (only 3 rain days)
- outside peak hazard season
Best time to visit Flagstaff
Flagstaff, United States — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: June, May, April.
Best months to visit
May
Best time
20.1°C / 6.6°C
7 rain days
mild
- comfortable temperatures (avg high 20.1°C / 68°F)
- manageable rain (7 days)
- outside peak hazard season
April
Best time
16.5°C / 3.1°C
4 rain days
mild, dry
- very low rainfall (only 4 rain days)
- outside peak hazard season
July
Best time
28.4°C / 15.7°C
13 rain days
hot, rainy
- outside peak hazard season
- warm evenings without humidity overload
OK — shoulder months
November
OK
11.6°C / 0.9°C
4 rain days
cool, dry
- very low rainfall (only 4 rain days)
- outside peak hazard season
March
OK
10.6°C / -0.7°C
7 rain days
cool, freezing nights
- manageable rain (7 days)
- outside peak hazard season
February
OK
7.7°C / -3.1°C
5 rain days
chilly, freezing nights
- very low rainfall (only 5 rain days)
- outside peak hazard season
December
OK
6.4°C / -3°C
6 rain days
chilly, freezing nights
- very low rainfall (only 6 rain days)
- outside peak hazard season
January
OK
5.5°C / -4.3°C
7 rain days
chilly, freezing nights
- manageable rain (7 days)
- outside peak hazard season
Months to skip
October
Skip
18°C / 6.3°C
6 rain days
⚠ peak season
mild
- peak hurricane season
September
Skip
24°C / 12°C
7 rain days
⚠ peak season
warm
- peak hurricane season
August
Skip
26.7°C / 14.7°C
12 rain days
⚠ peak season
warm, rainy
- peak hurricane season
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.