What is the weather like in Flagstaff vs Las Vegas in December?

In December, Flagstaff averages 8°C high / -5°C low with about 40 mm of rain; Las Vegas averages 16°C high / 5°C low with about 10 mm.

Flagstaff vs Las Vegas in December

Las Vegas is the better pick in December — 73 vs 61 on SeasonMap's comfort score. Las Vegas is cool, dry, clean air, while Flagstaff is cold, a little rain, clean air.

Flagstaff vs Las Vegas — December climate, side by side

	🇺🇸 Flagstaff	🇺🇸 Las Vegas
Comfort score	61/100 (C)	73/100 (B)
Feels-like high	4°C	12°C
Avg high / low	8° / -5°	16° / 5°
Rainfall	40 mm	10 mm
Rainy days	5	1
Humidity	56%	42%
Air quality (AQI)	39	44

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Flagstaff vs Las Vegas in December — FAQ

Is December better in Flagstaff or Las Vegas?: Las Vegas is the better pick in December — 73 vs 61 on SeasonMap's comfort score. Las Vegas is cool, dry, clean air, while Flagstaff is cold, a little rain, clean air.
What is the weather like in Flagstaff vs Las Vegas in December?: In December, Flagstaff averages 8°C high / -5°C low with about 40 mm of rain; Las Vegas averages 16°C high / 5°C low with about 10 mm.