Weather Almanac: Nikiski, AK 99635

🗓️ Historical norms for September 2026

September avg. precipitation
🌧️ 7.34"
September days below freezing
📉 ≈1.8 days
Average September lows 39°F – 45°F
USDA Zone
4b
Annual extreme lows -25°F to -20°F
Last Spring Frost (36°F)
🌷 Jun 1
First Fall Frost (36°F)
🍂 Sep 17
F: Forecast
H: Normal High Temp
L: Normal Low Temp
Tue. September 1  

🌅 7:01 a.m.

H: 58°F – 70°F

L: 41°F – 51°F

🌇 9:18 p.m.

Wed. September 2  

🌅 7:04 a.m.

H: 57°F – 69°F

L: 41°F – 51°F

🌇 9:15 p.m.

Thu. September 3  

🌅 7:06 a.m.

H: 57°F – 69°F

L: 41°F – 51°F

🌇 9:12 p.m.

Fri. September 4  

🌅 7:09 a.m.

H: 57°F – 69°F

L: 41°F – 50°F

🌇 9:08 p.m.

Sat. September 5  

🌅 7:11 a.m.

H: 57°F – 68°F

L: 40°F – 50°F

🌇 9:05 p.m.

Sun. September 6  

🌅 7:14 a.m.

H: 56°F – 68°F

L: 40°F – 50°F

🌇 9:02 p.m.

Mon. September 7 Labor Day  

🌅 7:16 a.m.

H: 56°F – 68°F

L: 40°F – 50°F

🌇 8:59 p.m.

Tue. September 8  

🌅 7:19 a.m.

H: 56°F – 67°F

L: 39°F – 49°F

🌇 8:56 p.m.

Wed. September 9  

🌅 7:21 a.m.

H: 55°F – 67°F

L: 39°F – 49°F

🌇 8:53 p.m.

Thu. September 10  

🌅 7:23 a.m.

H: 55°F – 66°F

L: 39°F – 49°F

🌇 8:50 p.m.

Fri. September 11  

🌅 7:26 a.m.

H: 55°F – 66°F

L: 39°F – 49°F

🌇 8:47 p.m.

Sat. September 12  

🌅 7:28 a.m.

H: 54°F – 66°F

L: 38°F – 49°F

🌇 8:44 p.m.

Sun. September 13  

🌅 7:31 a.m.

H: 54°F – 65°F

L: 38°F – 48°F

🌇 8:40 p.m.

Mon. September 14 Holy Cross  

🌅 7:33 a.m.

H: 54°F – 65°F

L: 38°F – 48°F

🌇 8:37 p.m.

Tue. September 15  

🌅 7:36 a.m.

H: 53°F – 64°F

L: 37°F – 48°F

🌇 8:34 p.m.

Wed. September 16  

🌅 7:38 a.m.

H: 53°F – 64°F

L: 37°F – 48°F

🌇 8:31 p.m.

Thu. September 17  

🌅 7:41 a.m.

H: 53°F – 63°F

L: 37°F – 47°F

🌇 8:28 p.m.

Fri. September 18  

🌅 7:43 a.m.

H: 52°F – 63°F

L: 37°F – 47°F

🌇 8:25 p.m.

Sat. September 19  

🌅 7:45 a.m.

H: 52°F – 63°F

L: 36°F – 47°F

🌇 8:22 p.m.

Sun. September 20  

🌅 7:48 a.m.

H: 51°F – 62°F

L: 36°F – 47°F

🌇 8:18 p.m.

Mon. September 21  

🌅 7:50 a.m.

H: 51°F – 62°F

L: 36°F – 46°F

🌇 8:15 p.m.

Tue. September 22 Autumn Equinox  

🌅 7:53 a.m.

H: 50°F – 61°F

L: 35°F – 46°F

🌇 8:12 p.m.

Wed. September 23  

🌅 7:55 a.m.

H: 50°F – 61°F

L: 35°F – 46°F

🌇 8:09 p.m.

Thu. September 24  

🌅 7:58 a.m.

H: 50°F – 60°F

L: 35°F – 45°F

🌇 8:06 p.m.

Fri. September 25  

🌅 8:00 a.m.

H: 49°F – 60°F

L: 34°F – 45°F

🌇 8:03 p.m.

Sat. September 26 🌕

🌅 8:02 a.m.

H: 49°F – 60°F

L: 34°F – 45°F

🌇 8:00 p.m.

Sun. September 27  

🌅 8:05 a.m.

H: 48°F – 59°F

L: 34°F – 44°F

🌇 7:57 p.m.

Mon. September 28  

🌅 8:07 a.m.

H: 48°F – 59°F

L: 33°F – 44°F

🌇 7:53 p.m.

Tue. September 29  

🌅 8:10 a.m.

H: 47°F – 58°F

L: 33°F – 44°F

🌇 7:50 p.m.

Wed. September 30  

🌅 8:12 a.m.

H: 47°F – 58°F

L: 32°F – 44°F

🌇 7:47 p.m.


Temperature climatic data from weather station: BIG RIVER LAKES (USC00500788)

Precipitation climatic data from weather station: BIG RIVER LAKES (USC00500788)

Agricultural climatic data from weather station: BIG RIVER LAKES (USC00500788)