Flagstaff vs Las Vegas: which is better, month by month

Las Vegas beats Flagstaff in 7 of 12 months — its lead peaks in March (94 vs 65) — while Flagstaff wins May to September.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Flagstaff

🇺🇸 United States · mild climate

Best month: September 94/100
Months won: 5 of 12

Las Vegas

🇺🇸 United States · arid climate

Best month: March 94/100
Months won: 7 of 12

Flagstaff vs Las Vegas — all 12 months

Month	Flagstaff	Las Vegas	Winner	Gap
January	53Dcold, a little rain, clean air	71Bcool, dry, clean air	Las Vegas	18
February	60Ccold, a little rain, clean air	81Acool, dry, clean air	Las Vegas	21
March	65Ccold, a little rain, clean air	94Snice, dry, clean air	Las Vegas	29
April	78Bcool, dry	92Swarm, dry, clean air	Las Vegas	14
May	86Anice, dry	78Bhot, dry	Flagstaff	8
June	91Swarm, dry	46Fsweltering, dry	Flagstaff	45
July	83Ahot, rainy	31Fsweltering, dry	Flagstaff	52
August	88Awarm, a little rain, clean air	40Fsweltering, dry, clean air	Flagstaff	48
September	94Snice, dry, clean air	61Csweltering, dry, clean air	Flagstaff	33
October	81Acool, a little rain, clean air	89Awarm, dry, clean air	Las Vegas	8
November	70Bcold, a little rain, clean air	86Anice, dry, clean air	Las Vegas	16
December	61Ccold, a little rain, clean air	73Bcool, dry, clean air	Las Vegas	12

A month is a tie when the two are within 3 points. The widest gap is July (83 vs 31). Tap a month for that month's temperature, rain, humidity and air quality side by side.