Weather Almanac: Fort Defiance, AZ 86504

🗓️ Historical norms for September 2026

August October

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

September avg. precipitation

🌧️ 1.41"

September days below freezing

📉 ≈2.3 days

Average September lows ≈42.0°F

USDA Zone

Annual extreme lows -5°F to 0°F

Last Spring Frost (36°F)

🌷 Jun 6

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First Fall Frost (36°F)

🍂 Sep 18

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Tue. September 1

🌅 6:48 a.m.

H: ≈81.4°F

L: ≈47.7°F

🌇 7:43 p.m.

Wed. September 2

🌅 6:49 a.m.

H: ≈81.2°F

L: ≈47.3°F

🌇 7:42 p.m.

Thu. September 3

🌅 6:50 a.m.

H: ≈81.0°F

L: ≈46.9°F

🌇 7:40 p.m.

Fri. September 4

🌅 6:50 a.m.

H: ≈80.7°F

L: ≈46.5°F

🌇 7:39 p.m.

Sat. September 5

🌅 6:51 a.m.

H: ≈80.5°F

L: ≈46.1°F

🌇 7:38 p.m.

Sun. September 6

🌅 6:52 a.m.

H: ≈80.3°F

L: ≈45.8°F

🌇 7:36 p.m.

Mon. September 7 Labor Day

🌅 6:53 a.m.

H: ≈80.0°F

L: ≈45.4°F

🌇 7:35 p.m.

Tue. September 8

🌅 6:53 a.m.

H: ≈79.7°F

L: ≈45.0°F

🌇 7:33 p.m.

Wed. September 9

🌅 6:54 a.m.

H: ≈79.4°F

L: ≈44.6°F

🌇 7:32 p.m.

Thu. September 10

🌅 6:55 a.m.

H: ≈79.1°F

L: ≈44.2°F

🌇 7:30 p.m.

Fri. September 11

🌅 6:56 a.m.

H: ≈78.8°F

L: ≈43.8°F

🌇 7:29 p.m.

Sat. September 12

🌅 6:57 a.m.

H: ≈78.5°F

L: ≈43.4°F

🌇 7:27 p.m.

Sun. September 13

🌅 6:57 a.m.

H: ≈78.2°F

L: ≈43.0°F

🌇 7:26 p.m.

Mon. September 14 Holy Cross

🌅 6:58 a.m.

H: ≈77.8°F

L: ≈42.6°F

🌇 7:24 p.m.

Tue. September 15

🌅 6:59 a.m.

H: ≈77.4°F

L: ≈42.2°F

🌇 7:23 p.m.

Wed. September 16

🌅 7:00 a.m.

H: ≈77.1°F

L: ≈41.8°F

🌇 7:21 p.m.

Thu. September 17

🌅 7:00 a.m.

H: ≈76.7°F

L: ≈41.4°F

🌇 7:20 p.m.

Fri. September 18

🌅 7:01 a.m.

H: ≈76.3°F

L: ≈41.0°F

🌇 7:19 p.m.

Sat. September 19

🌅 7:02 a.m.

H: ≈75.9°F

L: ≈40.6°F

🌇 7:17 p.m.

Sun. September 20

🌅 7:03 a.m.

H: ≈75.5°F

L: ≈40.2°F

🌇 7:16 p.m.

Mon. September 21

🌅 7:03 a.m.

H: ≈75.1°F

L: ≈39.8°F

🌇 7:14 p.m.

Tue. September 22 Autumn Equinox

🌅 7:04 a.m.

H: ≈74.6°F

L: ≈39.4°F

🌇 7:13 p.m.

Wed. September 23

🌅 7:05 a.m.

H: ≈74.2°F

L: ≈39.0°F

🌇 7:11 p.m.

Thu. September 24

🌅 7:06 a.m.

H: ≈73.8°F

L: ≈38.6°F

🌇 7:10 p.m.

Fri. September 25

🌅 7:06 a.m.

H: ≈73.4°F

L: ≈38.3°F

🌇 7:08 p.m.

Sat. September 26

🌅 7:07 a.m.

H: ≈72.9°F

L: ≈37.9°F

🌇 7:07 p.m.

Sun. September 27

🌅 7:08 a.m.

H: ≈72.5°F

L: ≈37.5°F

🌇 7:05 p.m.

Mon. September 28

🌅 7:09 a.m.

H: ≈72.1°F

L: ≈37.2°F

🌇 7:04 p.m.

Tue. September 29

🌅 7:10 a.m.

H: ≈71.6°F

L: ≈36.8°F

🌇 7:02 p.m.

Wed. September 30

🌅 7:10 a.m.

H: ≈71.2°F

L: ≈36.4°F

🌇 7:01 p.m.

August October

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

Temperature climatic data from weather station: WINDOW ROCK AP (USW00003029)

Precipitation climatic data from weather station: WINDOW ROCK AP (USW00003029)

Agricultural climatic data from weather station: WINDOW ROCK 4 SW (USC00029410)