Grand Canyon National Park vs Petrified Forest National Park in September

Petrified Forest National Park is the better pick in September — 79 vs 52 on SeasonMap's comfort score. Petrified Forest National Park is warm, dry, clean air, while Grand Canyon National Park is hot, dry, clean air.

Grand Canyon National Park vs Petrified Forest National Park — September climate, side by side

	🇺🇸 Grand Canyon National Park	🇺🇸 Petrified Forest National Park
Comfort score	52/100 (D)	79/100 (B)
Feels-like high	33°C	27°C
Avg high / low	35° / 19°	30° / 13°
Rainfall	14 mm	22 mm
Rainy days	2	4
Humidity	34%	35%
Air quality (AQI)	38	38

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

Month by month

Grand Canyon National Park 🇺🇸 United Stateshot, dry, clean air · best March52
Petrified Forest National Park 🇺🇸 United Stateswarm, dry, clean air · best October79

Grand Canyon National Park vs Petrified Forest National Park in September — FAQ

Is September better in Grand Canyon National Park or Petrified Forest National Park?: Petrified Forest National Park is the better pick in September — 79 vs 52 on SeasonMap's comfort score. Petrified Forest National Park is warm, dry, clean air, while Grand Canyon National Park is hot, dry, clean air.
What is the weather like in Grand Canyon National Park vs Petrified Forest National Park in September?: In September, Grand Canyon National Park averages 35°C high / 19°C low with about 14 mm of rain; Petrified Forest National Park averages 30°C high / 13°C low with about 22 mm.