What is the weather like in Great Basin National Park vs Yellowstone National Park in September?

In September, Great Basin National Park averages 14°C high / 3°C low with about 31 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.

Great Basin National Park vs Yellowstone National Park in September

Great Basin National Park and Yellowstone National Park are nearly tied in September — 87 vs 84 on SeasonMap's comfort score. Great Basin National Park is cool, a little rain, clean air; Yellowstone National Park is cool, a little rain, clean air.

Great Basin National Park vs Yellowstone National Park — September climate, side by side

	🇺🇸 Great Basin National Park	🇺🇸 Yellowstone National Park
Comfort score	87/100 (A)	84/100 (A)
Feels-like high	11°C	14°C
Avg high / low	14° / 3°	17° / 1°
Rainfall	31 mm	59 mm
Rainy days	4	11
Humidity	33%	59%
Air quality (AQI)	44	43

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

Month by month

Great Basin National Park vs Yellowstone National Park in September — FAQ

Is September better in Great Basin National Park or Yellowstone National Park?: Great Basin National Park and Yellowstone National Park are nearly tied in September — 87 vs 84 on SeasonMap's comfort score. Great Basin National Park is cool, a little rain, clean air; Yellowstone National Park is cool, a little rain, clean air.
What is the weather like in Great Basin National Park vs Yellowstone National Park in September?: In September, Great Basin National Park averages 14°C high / 3°C low with about 31 mm of rain; Yellowstone National Park averages 17°C high / 1°C low with about 59 mm.