Joshua Tree National Park vs Petrified Forest National Park in September

Petrified Forest National Park is the better pick in September — 79 vs 54 on SeasonMap's comfort score. Petrified Forest National Park is warm, dry, clean air, while Joshua Tree National Park is hot, dry, clean air.

Joshua Tree National Park vs Petrified Forest National Park — September climate, side by side

	🇺🇸 Joshua Tree National Park	🇺🇸 Petrified Forest National Park
Comfort score	54/100 (D)	79/100 (B)
Feels-like high	33°C	27°C
Avg high / low	34° / 20°	30° / 13°
Rainfall	8 mm	22 mm
Rainy days	1	4
Humidity	31%	35%
Air quality (AQI)	49	38

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

Month by month

Joshua Tree National Park 🇺🇸 United Stateshot, dry, clean air · best March54
Petrified Forest National Park 🇺🇸 United Stateswarm, dry, clean air · best October79

Joshua Tree National Park vs Petrified Forest National Park in September — FAQ

Is September better in Joshua Tree National Park or Petrified Forest National Park?: Petrified Forest National Park is the better pick in September — 79 vs 54 on SeasonMap's comfort score. Petrified Forest National Park is warm, dry, clean air, while Joshua Tree National Park is hot, dry, clean air.
What is the weather like in Joshua Tree National Park vs Petrified Forest National Park in September?: In September, Joshua Tree National Park averages 34°C high / 20°C low with about 8 mm of rain; Petrified Forest National Park averages 30°C high / 13°C low with about 22 mm.