What is the weather like in Great Smoky Mountains National Park vs Washington in September?

In September, Great Smoky Mountains National Park averages 23°C high / 14°C low with about 146 mm of rain; Washington averages 28°C high / 17°C low with about 108 mm.

Great Smoky Mountains National Park vs Washington in September

Great Smoky Mountains National Park is the better pick in September — 84 vs 80 on SeasonMap's comfort score. Great Smoky Mountains National Park is nice, rainy, clean air, while Washington is hot, rainy, clean air.

Great Smoky Mountains National Park vs Washington — September climate, side by side

	Great Smoky Mountains National Park	Washington
Comfort score	84/100 (A)	80/100 (A)
Feels-like high	23°C	30°C
Avg high / low	23° / 14°	28° / 17°
Rainfall	146 mm	108 mm
Rainy days	9	8
Humidity	78%	74%
Air quality (AQI)	37	47

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

Great Smoky Mountains National Park vs Washington in September — FAQ

Is September better in Great Smoky Mountains National Park or Washington?: Great Smoky Mountains National Park is the better pick in September — 84 vs 80 on SeasonMap's comfort score. Great Smoky Mountains National Park is nice, rainy, clean air, while Washington is hot, rainy, clean air.
What is the weather like in Great Smoky Mountains National Park vs Washington in September?: In September, Great Smoky Mountains National Park averages 23°C high / 14°C low with about 146 mm of rain; Washington averages 28°C high / 17°C low with about 108 mm.