What is the weather like in Boise vs Salt Lake City in September?

In September, Boise averages 27°C high / 12°C low with about 8 mm of rain; Salt Lake City averages 29°C high / 14°C low with about 19 mm.

Boise vs Salt Lake City in September

Boise and Salt Lake City are nearly tied in September — 94 vs 92 on SeasonMap's comfort score. Boise is warm, dry, clean air; Salt Lake City is warm, dry, clean air.

Boise vs Salt Lake City — September climate, side by side

	🇺🇸 Boise	🇺🇸 Salt Lake City
Comfort score	94/100 (S)	92/100 (S)
Feels-like high	25°C	27°C
Avg high / low	27° / 12°	29° / 14°
Rainfall	8 mm	19 mm
Rainy days	3	1
Humidity	41%	51%
Air quality (AQI)	40	41

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

Month by month

Boise vs Salt Lake City in September — FAQ

Is September better in Boise or Salt Lake City?: Boise and Salt Lake City are nearly tied in September — 94 vs 92 on SeasonMap's comfort score. Boise is warm, dry, clean air; Salt Lake City is warm, dry, clean air.
What is the weather like in Boise vs Salt Lake City in September?: In September, Boise averages 27°C high / 12°C low with about 8 mm of rain; Salt Lake City averages 29°C high / 14°C low with about 19 mm.