Weather Almanac: Koyukuk, AK 99754

🗓️ Historical norms for May 2026

May avg. precipitation
🌧️ 0.40"
May days below freezing
📉 ≈11.6 days
Average May lows 30°F – 38°F
USDA Zone
2a
Annual extreme lows -50°F to -45°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
F: Forecast
H: Normal High Temp
L: Normal Low Temp
Fri. May 1 🌕

🌅 5:59 a.m.

H: 39°F – 57°F

L: 17°F – 35°F

🌇 10:58 p.m.

Sat. May 2  

🌅 5:56 a.m.

H: 40°F – 57°F

L: 18°F – 35°F

🌇 11:02 p.m.

Sun. May 3  

🌅 5:52 a.m.

H: 40°F – 58°F

L: 19°F – 35°F

🌇 11:05 p.m.

Mon. May 4  

🌅 5:48 a.m.

H: 41°F – 59°F

L: 19°F – 36°F

🌇 11:08 p.m.

Tue. May 5  

🌅 5:45 a.m.

H: 42°F – 59°F

L: 20°F – 36°F

🌇 11:12 p.m.

Wed. May 6  

🌅 5:41 a.m.

H: 42°F – 60°F

L: 21°F – 36°F

🌇 11:15 p.m.

Thu. May 7  

🌅 5:38 a.m.

H: 43°F – 60°F

L: 22°F – 37°F

🌇 11:19 p.m.

Fri. May 8  

🌅 5:34 a.m.

H: 44°F – 61°F

L: 22°F – 37°F

🌇 11:22 p.m.

Sat. May 9 🌗

🌅 5:30 a.m.

H: 44°F – 62°F

L: 23°F – 38°F

🌇 11:26 p.m.

Sun. May 10  

🌅 5:27 a.m.

H: 45°F – 62°F

L: 24°F – 38°F

🌇 11:29 p.m.

Mon. May 11  

🌅 5:23 a.m.

H: 45°F – 63°F

L: 25°F – 39°F

🌇 11:33 p.m.

Tue. May 12  

🌅 5:20 a.m.

H: 46°F – 63°F

L: 25°F – 39°F

🌇 11:36 p.m.

Wed. May 13  

🌅 5:16 a.m.

H: 47°F – 64°F

L: 26°F – 39°F

🌇 11:40 p.m.

Thu. May 14 Ascension  

🌅 5:13 a.m.

H: 47°F – 65°F

L: 26°F – 40°F

🌇 11:43 p.m.

Fri. May 15  

🌅 5:09 a.m.

H: 48°F – 65°F

L: 27°F – 40°F

🌇 11:47 p.m.

Sat. May 16 🌑

🌅 5:06 a.m.

H: 48°F – 66°F

L: 28°F – 41°F

🌇 11:50 p.m.

Sun. May 17  

🌅 5:02 a.m.

H: 49°F – 66°F

L: 28°F – 41°F

🌇 11:54 p.m.

Mon. May 18  

🌅 4:59 a.m.

H: 49°F – 67°F

L: 29°F – 42°F

🌇 11:57 p.m.

Tue. May 19  

🌅 4:55 a.m.

H: 50°F – 67°F

L: 29°F – 42°F

🌇 12:01 a.m.

Wed. May 20  

🌅 4:52 a.m.

H: 51°F – 68°F

L: 30°F – 42°F

🌇 12:05 a.m.

Thu. May 21  

🌅 4:48 a.m.

H: 51°F – 68°F

L: 31°F – 43°F

🌇 12:08 a.m.

Fri. May 22  

🌅 4:45 a.m.

H: 52°F – 69°F

L: 31°F – 43°F

🌇 12:12 a.m.

Sat. May 23 🌓

🌅 4:42 a.m.

H: 52°F – 69°F

L: 32°F – 44°F

🌇 12:15 a.m.

Sun. May 24 Pentecost  

🌅 4:38 a.m.

H: 53°F – 70°F

L: 32°F – 44°F

🌇 12:19 a.m.

Mon. May 25 Memorial Day  

🌅 4:35 a.m.

H: 53°F – 70°F

L: 33°F – 45°F

🌇 12:22 a.m.

Tue. May 26  

🌅 4:32 a.m.

H: 54°F – 71°F

L: 33°F – 45°F

🌇 12:26 a.m.

Wed. May 27  

🌅 4:28 a.m.

H: 54°F – 71°F

L: 34°F – 46°F

🌇 12:29 a.m.

Thu. May 28  

🌅 4:25 a.m.

H: 55°F – 72°F

L: 34°F – 46°F

🌇 12:33 a.m.

Fri. May 29  

🌅 4:22 a.m.

H: 55°F – 72°F

L: 35°F – 46°F

🌇 12:36 a.m.

Sat. May 30  

🌅 4:19 a.m.

H: 56°F – 73°F

L: 35°F – 47°F

🌇 12:39 a.m.

Sun. May 31 🌕

🌅 4:16 a.m.

H: 56°F – 73°F

L: 36°F – 47°F

🌇 12:43 a.m.


Temperature climatic data from weather station: GALENA (USC00503212)

Precipitation climatic data from weather station: GALENA (USC00503212)

Agricultural climatic data from weather station: KOTZEBUE RALPH WEIN AP (USW00026616)