Weather Almanac: Brownsville, TX 78526

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 5.92"
September days below freezing
📉 ≈0.0 days
Average September lows 72°F – 75°F
USDA Zone
10a
Annual extreme lows 30°F to 35°F
Last Spring Frost (36°F)
🌷 Feb 12
First Fall Frost (36°F)
🍂 Dec 12
Mon. September 1 Labor Day  

🌅 7:10 a.m.

H: 90°F – 97°F

L: 73°F – 78°F

🌇 7:48 p.m.

Tue. September 2  

🌅 7:10 a.m.

H: 89°F – 96°F

L: 73°F – 78°F

🌇 7:47 p.m.

Wed. September 3  

🌅 7:10 a.m.

H: 89°F – 96°F

L: 73°F – 78°F

🌇 7:46 p.m.

Thu. September 4  

🌅 7:11 a.m.

H: 89°F – 96°F

L: 72°F – 78°F

🌇 7:45 p.m.

Fri. September 5  

🌅 7:11 a.m.

H: 89°F – 96°F

L: 72°F – 78°F

🌇 7:44 p.m.

Sat. September 6  

🌅 7:12 a.m.

H: 89°F – 96°F

L: 72°F – 78°F

🌇 7:43 p.m.

Sun. September 7 🌕

🌅 7:12 a.m.

H: 88°F – 96°F

L: 72°F – 78°F

🌇 7:42 p.m.

Mon. September 8  

🌅 7:12 a.m.

H: 88°F – 96°F

L: 72°F – 78°F

🌇 7:41 p.m.

Tue. September 9  

🌅 7:13 a.m.

H: 88°F – 96°F

L: 71°F – 77°F

🌇 7:40 p.m.

Wed. September 10  

🌅 7:13 a.m.

H: 88°F – 95°F

L: 71°F – 77°F

🌇 7:39 p.m.

Thu. September 11  

🌅 7:14 a.m.

H: 87°F – 95°F

L: 71°F – 77°F

🌇 7:37 p.m.

Fri. September 12  

🌅 7:14 a.m.

H: 87°F – 95°F

L: 71°F – 77°F

🌇 7:36 p.m.

Sat. September 13  

🌅 7:14 a.m.

H: 87°F – 95°F

L: 70°F – 77°F

🌇 7:35 p.m.

Sun. September 14 Holy Cross 🌗

🌅 7:15 a.m.

H: 87°F – 95°F

L: 70°F – 77°F

🌇 7:34 p.m.

Mon. September 15  

🌅 7:15 a.m.

H: 87°F – 95°F

L: 70°F – 77°F

🌇 7:33 p.m.

Tue. September 16  

🌅 7:16 a.m.

H: 86°F – 95°F

L: 69°F – 77°F

🌇 7:32 p.m.

Wed. September 17  

🌅 7:16 a.m.

H: 86°F – 94°F

L: 69°F – 77°F

🌇 7:31 p.m.

Thu. September 18  

🌅 7:16 a.m.

H: 86°F – 94°F

L: 69°F – 77°F

🌇 7:30 p.m.

Fri. September 19  

🌅 7:17 a.m.

H: 86°F – 94°F

L: 68°F – 77°F

🌇 7:29 p.m.

Sat. September 20  

🌅 7:17 a.m.

H: 86°F – 94°F

L: 68°F – 77°F

🌇 7:27 p.m.

Sun. September 21 🌑

🌅 7:18 a.m.

H: 85°F – 94°F

L: 68°F – 77°F

🌇 7:26 p.m.

Mon. September 22 Autumn Equinox  

🌅 7:18 a.m.

H: 85°F – 94°F

L: 67°F – 77°F

🌇 7:25 p.m.

Tue. September 23  

🌅 7:18 a.m.

H: 85°F – 94°F

L: 67°F – 77°F

🌇 7:24 p.m.

Wed. September 24  

🌅 7:19 a.m.

H: 85°F – 93°F

L: 67°F – 77°F

🌇 7:23 p.m.

Thu. September 25  

🌅 7:19 a.m.

H: 85°F – 93°F

L: 66°F – 77°F

🌇 7:22 p.m.

Fri. September 26  

🌅 7:20 a.m.

H: 84°F – 93°F

L: 66°F – 76°F

🌇 7:21 p.m.

Sat. September 27  

🌅 7:20 a.m.

H: 84°F – 93°F

L: 66°F – 76°F

🌇 7:20 p.m.

Sun. September 28  

🌅 7:21 a.m.

H: 84°F – 93°F

L: 65°F – 76°F

🌇 7:19 p.m.

Mon. September 29 🌓

🌅 7:21 a.m.

H: 84°F – 93°F

L: 65°F – 76°F

🌇 7:18 p.m.

Tue. September 30  

🌅 7:21 a.m.

H: 84°F – 93°F

L: 65°F – 76°F

🌇 7:16 p.m.


Temperature climatic data from weather station: BROWNSVILLE (USW00012919)

Precipitation climatic data from weather station: BROWNSVILLE (USW00012919)

Agricultural climatic data from weather station: BROWNSVILLE (USW00012919)