Weather Almanac: Tucson, AZ 85757

🗓️ Historical norms for September 2025

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

September avg. precipitation

🌧️ 1.64"

September days below freezing

📉 ≈0.0 days

Average September lows ≈68.1°F

USDA Zone

9a

Annual extreme lows 20°F to 25°F

Last Spring Frost (36°F)

🌷 Mar 26

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First Fall Frost (36°F)

🍂 Nov 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

🌅 6:00 a.m.

H: ≈97.2°F

L: ≈71.5°F

🌇 6:48 p.m.

Tue. September 2

🌅 6:00 a.m.

H: ≈97.2°F

L: ≈71.4°F

🌇 6:46 p.m.

Wed. September 3

🌅 6:01 a.m.

H: ≈97.1°F

L: ≈71.3°F

🌇 6:45 p.m.

Thu. September 4

🌅 6:01 a.m.

H: ≈97.1°F

L: ≈71.1°F

🌇 6:44 p.m.

Fri. September 5

🌅 6:02 a.m.

H: ≈97.0°F

L: ≈71.0°F

🌇 6:43 p.m.

Sat. September 6

🌅 6:03 a.m.

H: ≈96.9°F

L: ≈70.8°F

🌇 6:41 p.m.

Sun. September 7

🌅 6:03 a.m.

H: ≈96.7°F

L: ≈70.7°F

🌇 6:40 p.m.

Mon. September 8

🌅 6:04 a.m.

H: ≈96.6°F

L: ≈70.5°F

🌇 6:39 p.m.

Tue. September 9

🌅 6:04 a.m.

H: ≈96.4°F

L: ≈70.3°F

🌇 6:37 p.m.

Wed. September 10

🌅 6:05 a.m.

H: ≈96.2°F

L: ≈70.0°F

🌇 6:36 p.m.

Thu. September 11

🌅 6:06 a.m.

H: ≈96.1°F

L: ≈69.8°F

🌇 6:35 p.m.

Fri. September 12

🌅 6:06 a.m.

H: ≈95.8°F

L: ≈69.6°F

🌇 6:33 p.m.

Sat. September 13

🌅 6:07 a.m.

H: ≈95.6°F

L: ≈69.3°F

🌇 6:32 p.m.

Sun. September 14 Holy Cross

🌅 6:08 a.m.

H: ≈95.4°F

L: ≈69.0°F

🌇 6:31 p.m.

Mon. September 15

🌅 6:08 a.m.

H: ≈95.1°F

L: ≈68.7°F

🌇 6:29 p.m.

Tue. September 16

🌅 6:09 a.m.

H: ≈94.8°F

L: ≈68.4°F

🌇 6:28 p.m.

Wed. September 17

🌅 6:09 a.m.

H: ≈94.6°F

L: ≈68.1°F

🌇 6:27 p.m.

Thu. September 18

🌅 6:10 a.m.

H: ≈94.3°F

L: ≈67.8°F

🌇 6:25 p.m.

Fri. September 19

🌅 6:11 a.m.

H: ≈94.0°F

L: ≈67.4°F

🌇 6:24 p.m.

Sat. September 20

🌅 6:11 a.m.

H: ≈93.6°F

L: ≈67.1°F

🌇 6:23 p.m.

Sun. September 21

🌅 6:12 a.m.

H: ≈93.3°F

L: ≈66.7°F

🌇 6:21 p.m.

Mon. September 22 Autumn Equinox

🌅 6:12 a.m.

H: ≈93.0°F

L: ≈66.3°F

🌇 6:20 p.m.

Tue. September 23

🌅 6:13 a.m.

H: ≈92.6°F

L: ≈65.9°F

🌇 6:19 p.m.

Wed. September 24

🌅 6:14 a.m.

H: ≈92.3°F

L: ≈65.6°F

🌇 6:17 p.m.

Thu. September 25

🌅 6:14 a.m.

H: ≈91.9°F

L: ≈65.2°F

🌇 6:16 p.m.

Fri. September 26

🌅 6:15 a.m.

H: ≈91.6°F

L: ≈64.7°F

🌇 6:15 p.m.

Sat. September 27

🌅 6:16 a.m.

H: ≈91.2°F

L: ≈64.3°F

🌇 6:13 p.m.

Sun. September 28

🌅 6:16 a.m.

H: ≈90.8°F

L: ≈63.9°F

🌇 6:12 p.m.

Mon. September 29

🌅 6:17 a.m.

H: ≈90.5°F

L: ≈63.5°F

🌇 6:11 p.m.

Tue. September 30

🌅 6:18 a.m.

H: ≈90.1°F

L: ≈63.1°F

🌇 6:10 p.m.

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

Temperature climatic data from weather station: TUCSON 11 W (USW00053131)

Precipitation climatic data from weather station: TUCSON 11 W (USW00053131)

Agricultural climatic data from weather station: TUCSON 17 NW (USC00028795)