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Flagstaff weather in September

Weather in Flagstaff: September


	Average day temperature:	74.3°F
	Average night temperature:	58.5°F

	Number of sunny days:	23 days
	Day length:	11.8 - 12.9 hours

	Number of rainy days:	2 days
	Precipitation totals:	0.5 in.

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14 days
forecast

Flagstaff

weather in
October

Flagstaff

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September
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2024

2023

2022

104

Day temperature

Night temperature

The highest day temperature during September of 2024 was 81°F. At the same time the lowest night temperature was 48°F. Daily and nightly averages during September were 73.4°F and 58.7°F.

	Sunny days
	Partly cloudy days
	Cloudy days

77%

17%

Mostly all days in September are sunny but cloudy days are also possible.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

0.4

0.8

1.2

1.6

2.0

2.4

2.7

3.1

1.9

2.2

2.3

1.9

2.2

2.3

Precipitation total value in Flagstaff in September is 0.5 in. Other months of the year show relatively similar values.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

1.6

3.1

4.7

6.2

7.8

9.3

10.9

12.4

6.4

6.8

6.4

5.5

5.4

8.2

9.0

8.9

9.0

7.9

6.4

6.8

6.4

5.9

5.5

5.4

8.2

9.0

8.9

9.0

7.9

6.4

The average wind speed value in September is 5.9 mph It makes September one of the least windy months of the year.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

2.1

4.2

6.4

8.5

10.6

12.7

14.8

6.7

8.1

9.2

8.6

9.3

12.0

12.4

11.1

7.5

7.9

7.0

6.7

8.1

9.2

9.9

8.6

9.3

12.0

12.4

11.1

7.5

7.9

7.0

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 9.9.