Weather Almanac: Tucson, AZ 85739

🗓️ Historical norms for September 2025

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

September avg. precipitation

🌧️ 1.95"

September days below freezing

📉 ≈0.0 days

Average September lows ≈60.4°F

USDA Zone

9a

Annual extreme lows 20°F to 25°F

Last Spring Frost (36°F)

🌷 Apr 21

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First Fall Frost (36°F)

🍂 Nov 1

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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

🌅 5:59 a.m.

H: ≈98.5°F

L: ≈64.3°F

🌇 6:48 p.m.

Tue. September 2

🌅 5:59 a.m.

H: ≈98.5°F

L: ≈64.1°F

🌇 6:46 p.m.

Wed. September 3

🌅 6:00 a.m.

H: ≈98.4°F

L: ≈63.9°F

🌇 6:45 p.m.

Thu. September 4

🌅 6:01 a.m.

H: ≈98.4°F

L: ≈63.7°F

🌇 6:44 p.m.

Fri. September 5

🌅 6:01 a.m.

H: ≈98.3°F

L: ≈63.5°F

🌇 6:42 p.m.

Sat. September 6

🌅 6:02 a.m.

H: ≈98.2°F

L: ≈63.3°F

🌇 6:41 p.m.

Sun. September 7

🌅 6:02 a.m.

H: ≈98.0°F

L: ≈63.1°F

🌇 6:40 p.m.

Mon. September 8

🌅 6:03 a.m.

H: ≈97.9°F

L: ≈62.9°F

🌇 6:38 p.m.

Tue. September 9

🌅 6:04 a.m.

H: ≈97.7°F

L: ≈62.6°F

🌇 6:37 p.m.

Wed. September 10

🌅 6:04 a.m.

H: ≈97.5°F

L: ≈62.4°F

🌇 6:36 p.m.

Thu. September 11

🌅 6:05 a.m.

H: ≈97.3°F

L: ≈62.1°F

🌇 6:34 p.m.

Fri. September 12

🌅 6:06 a.m.

H: ≈97.0°F

L: ≈61.9°F

🌇 6:33 p.m.

Sat. September 13

🌅 6:06 a.m.

H: ≈96.8°F

L: ≈61.6°F

🌇 6:32 p.m.

Sun. September 14 Holy Cross

🌅 6:07 a.m.

H: ≈96.5°F

L: ≈61.3°F

🌇 6:30 p.m.

Mon. September 15

🌅 6:08 a.m.

H: ≈96.2°F

L: ≈61.0°F

🌇 6:29 p.m.

Tue. September 16

🌅 6:08 a.m.

H: ≈95.9°F

L: ≈60.7°F

🌇 6:28 p.m.

Wed. September 17

🌅 6:09 a.m.

H: ≈95.6°F

L: ≈60.3°F

🌇 6:26 p.m.

Thu. September 18

🌅 6:09 a.m.

H: ≈95.2°F

L: ≈60.0°F

🌇 6:25 p.m.

Fri. September 19

🌅 6:10 a.m.

H: ≈94.9°F

L: ≈59.6°F

🌇 6:24 p.m.

Sat. September 20

🌅 6:11 a.m.

H: ≈94.5°F

L: ≈59.3°F

🌇 6:22 p.m.

Sun. September 21

🌅 6:11 a.m.

H: ≈94.1°F

L: ≈58.9°F

🌇 6:21 p.m.

Mon. September 22 Autumn Equinox

🌅 6:12 a.m.

H: ≈93.7°F

L: ≈58.5°F

🌇 6:20 p.m.

Tue. September 23

🌅 6:13 a.m.

H: ≈93.4°F

L: ≈58.1°F

🌇 6:18 p.m.

Wed. September 24

🌅 6:13 a.m.

H: ≈93.0°F

L: ≈57.7°F

🌇 6:17 p.m.

Thu. September 25

🌅 6:14 a.m.

H: ≈92.6°F

L: ≈57.3°F

🌇 6:16 p.m.

Fri. September 26

🌅 6:15 a.m.

H: ≈92.2°F

L: ≈56.8°F

🌇 6:14 p.m.

Sat. September 27

🌅 6:15 a.m.

H: ≈91.8°F

L: ≈56.4°F

🌇 6:13 p.m.

Sun. September 28

🌅 6:16 a.m.

H: ≈91.4°F

L: ≈56.0°F

🌇 6:12 p.m.

Mon. September 29

🌅 6:17 a.m.

H: ≈91.0°F

L: ≈55.5°F

🌇 6:10 p.m.

Tue. September 30

🌅 6:17 a.m.

H: ≈90.6°F

L: ≈55.0°F

🌇 6:09 p.m.

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

Temperature climatic data from weather station: CATALINA SP (USC00021357)

Precipitation climatic data from weather station: ORACLE 2 SE (USC00026119)

Agricultural climatic data from weather station: ORACLE 2 SE (USC00026119)