Weather Almanac: Ketchikan, AK 99901

🗓️ Historical norms for September 2026

September avg. precipitation
🌧️ 13.79"
September days below freezing
📉 ≈0.1 days
Average September lows 45°F – 48°F
USDA Zone
7b
Annual extreme lows 5°F to 10°F
Last Spring Frost (36°F)
🌷 May 25
First Fall Frost (36°F)
🍂 Sep 27
F: Forecast
H: Normal High Temp
L: Normal Low Temp
Tue. September 1  

🌅 5:50 a.m.

H: 57°F – 66°F

L: 45°F – 53°F

🌇 7:42 p.m.

Wed. September 2  

🌅 5:52 a.m.

H: 57°F – 66°F

L: 45°F – 53°F

🌇 7:39 p.m.

Thu. September 3  

🌅 5:54 a.m.

H: 57°F – 65°F

L: 45°F – 53°F

🌇 7:36 p.m.

Fri. September 4  

🌅 5:56 a.m.

H: 57°F – 65°F

L: 45°F – 53°F

🌇 7:34 p.m.

Sat. September 5  

🌅 5:58 a.m.

H: 57°F – 65°F

L: 44°F – 53°F

🌇 7:31 p.m.

Sun. September 6  

🌅 5:59 a.m.

H: 57°F – 65°F

L: 44°F – 53°F

🌇 7:29 p.m.

Mon. September 7 Labor Day  

🌅 6:01 a.m.

H: 56°F – 64°F

L: 44°F – 52°F

🌇 7:26 p.m.

Tue. September 8  

🌅 6:03 a.m.

H: 56°F – 64°F

L: 44°F – 52°F

🌇 7:24 p.m.

Wed. September 9  

🌅 6:05 a.m.

H: 56°F – 64°F

L: 43°F – 52°F

🌇 7:21 p.m.

Thu. September 10  

🌅 6:07 a.m.

H: 56°F – 64°F

L: 43°F – 52°F

🌇 7:18 p.m.

Fri. September 11  

🌅 6:09 a.m.

H: 56°F – 64°F

L: 43°F – 52°F

🌇 7:16 p.m.

Sat. September 12  

🌅 6:11 a.m.

H: 55°F – 63°F

L: 43°F – 52°F

🌇 7:13 p.m.

Sun. September 13  

🌅 6:13 a.m.

H: 55°F – 63°F

L: 42°F – 52°F

🌇 7:11 p.m.

Mon. September 14 Holy Cross  

🌅 6:15 a.m.

H: 55°F – 63°F

L: 42°F – 52°F

🌇 7:08 p.m.

Tue. September 15  

🌅 6:17 a.m.

H: 55°F – 63°F

L: 42°F – 51°F

🌇 7:05 p.m.

Wed. September 16  

🌅 6:19 a.m.

H: 55°F – 62°F

L: 42°F – 51°F

🌇 7:03 p.m.

Thu. September 17  

🌅 6:21 a.m.

H: 54°F – 62°F

L: 41°F – 51°F

🌇 7:00 p.m.

Fri. September 18  

🌅 6:22 a.m.

H: 54°F – 62°F

L: 41°F – 51°F

🌇 6:57 p.m.

Sat. September 19  

🌅 6:24 a.m.

H: 54°F – 62°F

L: 41°F – 51°F

🌇 6:55 p.m.

Sun. September 20  

🌅 6:26 a.m.

H: 54°F – 61°F

L: 41°F – 51°F

🌇 6:52 p.m.

Mon. September 21  

🌅 6:28 a.m.

H: 54°F – 61°F

L: 41°F – 51°F

🌇 6:50 p.m.

Tue. September 22 Autumn Equinox  

🌅 6:30 a.m.

H: 53°F – 61°F

L: 40°F – 50°F

🌇 6:47 p.m.

Wed. September 23  

🌅 6:32 a.m.

H: 53°F – 61°F

L: 40°F – 50°F

🌇 6:44 p.m.

Thu. September 24  

🌅 6:34 a.m.

H: 53°F – 60°F

L: 40°F – 50°F

🌇 6:42 p.m.

Fri. September 25  

🌅 6:36 a.m.

H: 53°F – 60°F

L: 40°F – 50°F

🌇 6:39 p.m.

Sat. September 26 🌕

🌅 6:38 a.m.

H: 53°F – 60°F

L: 39°F – 50°F

🌇 6:36 p.m.

Sun. September 27  

🌅 6:40 a.m.

H: 52°F – 60°F

L: 39°F – 50°F

🌇 6:34 p.m.

Mon. September 28  

🌅 6:42 a.m.

H: 52°F – 59°F

L: 39°F – 49°F

🌇 6:31 p.m.

Tue. September 29  

🌅 6:44 a.m.

H: 52°F – 59°F

L: 39°F – 49°F

🌇 6:29 p.m.

Wed. September 30  

🌅 6:46 a.m.

H: 52°F – 59°F

L: 38°F – 49°F

🌇 6:26 p.m.


Temperature climatic data from weather station: KETCHIKAN INTL AP (USW00025325)

Precipitation climatic data from weather station: KETCHIKAN INTL AP (USW00025325)

Agricultural climatic data from weather station: KETCHIKAN INTL AP (USW00025325)