Weather Almanac: Flagstaff, AZ 86003

🗓️ Historical norms for September 2025

August October

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

September avg. precipitation

🌧️ 2.03"

September days below freezing

📉 ≈0.4 days

Average September lows ≈46.6°F

USDA Zone

Annual extreme lows 0°F to 5°F

Last Spring Frost (36°F)

🌷 May 3

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First Fall Frost (36°F)

🍂 Oct 16

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Mon. September 1 Labor Day

🌅 6:57 a.m.

H: ≈80.5°F

L: ≈51.5°F

🌇 7:51 p.m.

Tue. September 2

🌅 6:58 a.m.

H: ≈80.4°F

L: ≈51.3°F

🌇 7:49 p.m.

Wed. September 3

🌅 6:59 a.m.

H: ≈80.3°F

L: ≈51.0°F

🌇 7:48 p.m.

Thu. September 4

🌅 6:59 a.m.

H: ≈80.1°F

L: ≈50.8°F

🌇 7:46 p.m.

Fri. September 5

🌅 7:00 a.m.

H: ≈80.0°F

L: ≈50.5°F

🌇 7:45 p.m.

Sat. September 6

🌅 7:01 a.m.

H: ≈79.8°F

L: ≈50.2°F

🌇 7:44 p.m.

Sun. September 7

🌅 7:02 a.m.

H: ≈79.7°F

L: ≈50.0°F

🌇 7:42 p.m.

Mon. September 8

🌅 7:02 a.m.

H: ≈79.5°F

L: ≈49.7°F

🌇 7:41 p.m.

Tue. September 9

🌅 7:03 a.m.

H: ≈79.3°F

L: ≈49.3°F

🌇 7:39 p.m.

Wed. September 10

🌅 7:04 a.m.

H: ≈79.1°F

L: ≈49.0°F

🌇 7:38 p.m.

Thu. September 11

🌅 7:04 a.m.

H: ≈78.8°F

L: ≈48.7°F

🌇 7:36 p.m.

Fri. September 12

🌅 7:05 a.m.

H: ≈78.6°F

L: ≈48.3°F

🌇 7:35 p.m.

Sat. September 13

🌅 7:06 a.m.

H: ≈78.3°F

L: ≈48.0°F

🌇 7:34 p.m.

Sun. September 14 Holy Cross

🌅 7:07 a.m.

H: ≈78.1°F

L: ≈47.6°F

🌇 7:32 p.m.

Mon. September 15

🌅 7:07 a.m.

H: ≈77.8°F

L: ≈47.2°F

🌇 7:31 p.m.

Tue. September 16

🌅 7:08 a.m.

H: ≈77.5°F

L: ≈46.8°F

🌇 7:29 p.m.

Wed. September 17

🌅 7:09 a.m.

H: ≈77.2°F

L: ≈46.4°F

🌇 7:28 p.m.

Thu. September 18

🌅 7:10 a.m.

H: ≈76.9°F

L: ≈46.0°F

🌇 7:26 p.m.

Fri. September 19

🌅 7:10 a.m.

H: ≈76.5°F

L: ≈45.5°F

🌇 7:25 p.m.

Sat. September 20

🌅 7:11 a.m.

H: ≈76.2°F

L: ≈45.1°F

🌇 7:23 p.m.

Sun. September 21

🌅 7:12 a.m.

H: ≈75.8°F

L: ≈44.6°F

🌇 7:22 p.m.

Mon. September 22 Autumn Equinox

🌅 7:13 a.m.

H: ≈75.5°F

L: ≈44.2°F

🌇 7:20 p.m.

Tue. September 23

🌅 7:13 a.m.

H: ≈75.1°F

L: ≈43.7°F

🌇 7:19 p.m.

Wed. September 24

🌅 7:14 a.m.

H: ≈74.7°F

L: ≈43.2°F

🌇 7:18 p.m.

Thu. September 25

🌅 7:15 a.m.

H: ≈74.4°F

L: ≈42.8°F

🌇 7:16 p.m.

Fri. September 26

🌅 7:16 a.m.

H: ≈74.0°F

L: ≈42.3°F

🌇 7:15 p.m.

Sat. September 27

🌅 7:16 a.m.

H: ≈73.6°F

L: ≈41.8°F

🌇 7:13 p.m.

Sun. September 28

🌅 7:17 a.m.

H: ≈73.2°F

L: ≈41.3°F

🌇 7:12 p.m.

Mon. September 29

🌅 7:18 a.m.

H: ≈72.8°F

L: ≈40.8°F

🌇 7:10 p.m.

Tue. September 30

🌅 7:19 a.m.

H: ≈72.4°F

L: ≈40.3°F

🌇 7:09 p.m.

August October

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature climatic data from weather station: WALNUT CANYON N.M. (USC00029156)

Precipitation climatic data from weather station: WALNUT CANYON N.M. (USC00029156)

Agricultural climatic data from weather station: WUPATKI NM (USC00029542)