What is the weather like in Aspen vs Grand Teton National Park in September?

In September, Aspen averages 22°C high / 6°C low with about 30 mm of rain; Grand Teton National Park averages 19°C high / 1°C low with about 58 mm.

Aspen vs Grand Teton National Park in September

Grand Teton National Park is the better pick in September — 89 vs 20 on SeasonMap's comfort score. Grand Teton National Park is nice, a little rain, clean air, while Aspen is nice, a little rain, clean air.

Aspen vs Grand Teton National Park — September climate, side by side

	🇺🇸 Aspen	🇺🇸 Grand Teton National Park
Comfort score	20/100 (F)	89/100 (A)
Feels-like high	20°C	17°C
Avg high / low	22° / 6°	19° / 1°
Rainfall	30 mm	58 mm
Rainy days	6	7
Humidity	55%	61%
Air quality (AQI)	44	40

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

Month by month

Aspen vs Grand Teton National Park in September — FAQ

Is September better in Aspen or Grand Teton National Park?: Grand Teton National Park is the better pick in September — 89 vs 20 on SeasonMap's comfort score. Grand Teton National Park is nice, a little rain, clean air, while Aspen is nice, a little rain, clean air.
What is the weather like in Aspen vs Grand Teton National Park in September?: In September, Aspen averages 22°C high / 6°C low with about 30 mm of rain; Grand Teton National Park averages 19°C high / 1°C low with about 58 mm.