ClimateAverages

Flagstaff Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
24.1°C
September overnight low
6.7°C
September average
15.3°C

In September, Flagstaff typically sees daytime highs of 24.1°C and overnight lows around 6.7°C. Compared to the annual average high of 16.9°C, September runs +7.3°C.

vs. annual avg high
+7.3°C
Rank among 12 months
#4 warmest
Hottest year overall
2017

Where September ranks in Flagstaff

JanFebMarAprMayJunJulAugSep24°OctNovDec

FAQ

What is the average temperature in Flagstaff in September?

September in Flagstaff averages a daytime high of 24.1°C and an overnight low of 6.7°C.

Is September warm or cold in Flagstaff?

September runs +7.3°C compared to Flagstaff's annual average high of 16.9°C, ranking #4 of 12 months by warmth.

What should I pack for Flagstaff in September?

Plan for daytime highs near 24.1°C and cooler evenings around 6.7°C.

Other months for Flagstaff

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

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