Weather Almanac: Tucson, AZ 85747

🗓️ Historical norms for September 2025

August October

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

September avg. precipitation

🌧️ 1.34"

September days below freezing

📉 ≈0.0 days

Average September lows 64°F – 69°F

USDA Zone

Annual extreme lows 20°F to 25°F

Last Spring Frost (36°F)

🌷 Apr 2

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First Fall Frost (36°F)

🍂 Nov 7

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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

🌅 5:58 a.m.

H: 94°F – 104°F

L: 66°F – 76°F

🌇 6:46 p.m.

Tue. September 2

🌅 5:59 a.m.

H: 94°F – 104°F

L: 66°F – 76°F

🌇 6:45 p.m.

Wed. September 3

🌅 5:59 a.m.

H: 93°F – 104°F

L: 66°F – 76°F

🌇 6:44 p.m.

Thu. September 4

🌅 6:00 a.m.

H: 93°F – 104°F

L: 65°F – 75°F

🌇 6:42 p.m.

Fri. September 5

🌅 6:01 a.m.

H: 93°F – 104°F

L: 65°F – 75°F

🌇 6:41 p.m.

Sat. September 6

🌅 6:01 a.m.

H: 93°F – 104°F

L: 65°F – 75°F

🌇 6:40 p.m.

Sun. September 7

🌅 6:02 a.m.

H: 93°F – 104°F

L: 64°F – 75°F

🌇 6:38 p.m.

Mon. September 8

🌅 6:02 a.m.

H: 93°F – 104°F

L: 64°F – 75°F

🌇 6:37 p.m.

Tue. September 9

🌅 6:03 a.m.

H: 93°F – 103°F

L: 64°F – 74°F

🌇 6:36 p.m.

Wed. September 10

🌅 6:04 a.m.

H: 92°F – 103°F

L: 63°F – 74°F

🌇 6:35 p.m.

Thu. September 11

🌅 6:04 a.m.

H: 92°F – 103°F

L: 63°F – 74°F

🌇 6:33 p.m.

Fri. September 12

🌅 6:05 a.m.

H: 92°F – 103°F

L: 62°F – 74°F

🌇 6:32 p.m.

Sat. September 13

🌅 6:06 a.m.

H: 92°F – 103°F

L: 62°F – 73°F

🌇 6:31 p.m.

Sun. September 14 Holy Cross

🌅 6:06 a.m.

H: 91°F – 102°F

L: 62°F – 73°F

🌇 6:29 p.m.

Mon. September 15

🌅 6:07 a.m.

H: 91°F – 102°F

L: 61°F – 73°F

🌇 6:28 p.m.

Tue. September 16

🌅 6:07 a.m.

H: 91°F – 102°F

L: 61°F – 72°F

🌇 6:27 p.m.

Wed. September 17

🌅 6:08 a.m.

H: 90°F – 102°F

L: 60°F – 72°F

🌇 6:25 p.m.

Thu. September 18

🌅 6:09 a.m.

H: 90°F – 102°F

L: 60°F – 72°F

🌇 6:24 p.m.

Fri. September 19

🌅 6:09 a.m.

H: 90°F – 101°F

L: 59°F – 71°F

🌇 6:23 p.m.

Sat. September 20

🌅 6:10 a.m.

H: 89°F – 101°F

L: 59°F – 71°F

🌇 6:21 p.m.

Sun. September 21

🌅 6:10 a.m.

H: 89°F – 101°F

L: 58°F – 71°F

🌇 6:20 p.m.

Mon. September 22 Autumn Equinox

🌅 6:11 a.m.

H: 88°F – 101°F

L: 58°F – 70°F

🌇 6:19 p.m.

Tue. September 23

🌅 6:12 a.m.

H: 88°F – 100°F

L: 58°F – 70°F

🌇 6:17 p.m.

Wed. September 24

🌅 6:12 a.m.

H: 88°F – 100°F

L: 57°F – 69°F

🌇 6:16 p.m.

Thu. September 25

🌅 6:13 a.m.

H: 87°F – 100°F

L: 57°F – 69°F

🌇 6:15 p.m.

Fri. September 26

🌅 6:14 a.m.

H: 87°F – 100°F

L: 56°F – 69°F

🌇 6:13 p.m.

Sat. September 27

🌅 6:14 a.m.

H: 86°F – 99°F

L: 56°F – 68°F

🌇 6:12 p.m.

Sun. September 28

🌅 6:15 a.m.

H: 86°F – 99°F

L: 55°F – 68°F

🌇 6:11 p.m.

Mon. September 29

🌅 6:16 a.m.

H: 86°F – 99°F

L: 55°F – 67°F

🌇 6:09 p.m.

Tue. September 30

🌅 6:16 a.m.

H: 85°F – 99°F

L: 54°F – 67°F

🌇 6:08 p.m.

August October

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

Temperature climatic data from weather station: TUCSON MAGNETIC OBSY (USC00028800)

Precipitation climatic data from weather station: VAIL 7 N (USC00028998)

Agricultural climatic data from weather station: TUCSON MAGNETIC OBSY (USC00028800)