Weather Almanac: Hays, MT 59527

🗓️ Historical norms for December 2025

December avg. precipitation
🌧️ 0.48"
December days below freezing
📉 ≈30.0 days
Average December lows ≈6.1°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 9
Mon. December 1  

🌅 7:44 a.m.

H: ≈36.9°F

L: ≈10.6°F

🌇 4:23 p.m.

Tue. December 2  

🌅 7:45 a.m.

H: ≈36.5°F

L: ≈10.3°F

🌇 4:23 p.m.

Wed. December 3  

🌅 7:46 a.m.

H: ≈36.2°F

L: ≈10.0°F

🌇 4:22 p.m.

Thu. December 4 🌕

🌅 7:47 a.m.

H: ≈35.8°F

L: ≈9.7°F

🌇 4:22 p.m.

Fri. December 5  

🌅 7:49 a.m.

H: ≈35.5°F

L: ≈9.4°F

🌇 4:22 p.m.

Sat. December 6  

🌅 7:50 a.m.

H: ≈35.2°F

L: ≈9.0°F

🌇 4:22 p.m.

Sun. December 7  

🌅 7:51 a.m.

H: ≈34.9°F

L: ≈8.7°F

🌇 4:21 p.m.

Mon. December 8  

🌅 7:52 a.m.

H: ≈34.7°F

L: ≈8.4°F

🌇 4:21 p.m.

Tue. December 9  

🌅 7:53 a.m.

H: ≈34.4°F

L: ≈8.1°F

🌇 4:21 p.m.

Wed. December 10  

🌅 7:54 a.m.

H: ≈34.1°F

L: ≈7.8°F

🌇 4:21 p.m.

Thu. December 11 🌗

🌅 7:55 a.m.

H: ≈33.9°F

L: ≈7.5°F

🌇 4:21 p.m.

Fri. December 12  

🌅 7:56 a.m.

H: ≈33.7°F

L: ≈7.1°F

🌇 4:21 p.m.

Sat. December 13  

🌅 7:57 a.m.

H: ≈33.5°F

L: ≈6.8°F

🌇 4:21 p.m.

Sun. December 14  

🌅 7:57 a.m.

H: ≈33.3°F

L: ≈6.5°F

🌇 4:21 p.m.

Mon. December 15  

🌅 7:58 a.m.

H: ≈33.1°F

L: ≈6.2°F

🌇 4:22 p.m.

Tue. December 16  

🌅 7:59 a.m.

H: ≈32.9°F

L: ≈5.9°F

🌇 4:22 p.m.

Wed. December 17  

🌅 8:00 a.m.

H: ≈32.7°F

L: ≈5.6°F

🌇 4:22 p.m.

Thu. December 18  

🌅 8:00 a.m.

H: ≈32.5°F

L: ≈5.3°F

🌇 4:22 p.m.

Fri. December 19 🌑

🌅 8:01 a.m.

H: ≈32.4°F

L: ≈5.0°F

🌇 4:23 p.m.

Sat. December 20  

🌅 8:01 a.m.

H: ≈32.2°F

L: ≈4.7°F

🌇 4:23 p.m.

Sun. December 21 Winter Solstice  

🌅 8:02 a.m.

H: ≈32.1°F

L: ≈4.5°F

🌇 4:24 p.m.

Mon. December 22  

🌅 8:02 a.m.

H: ≈32.0°F

L: ≈4.2°F

🌇 4:24 p.m.

Tue. December 23  

🌅 8:03 a.m.

H: ≈31.9°F

L: ≈4.0°F

🌇 4:25 p.m.

Wed. December 24 Christmas Eve  

🌅 8:03 a.m.

H: ≈31.8°F

L: ≈3.7°F

🌇 4:26 p.m.

Thu. December 25 Christmas Day  

🌅 8:04 a.m.

H: ≈31.7°F

L: ≈3.5°F

🌇 4:26 p.m.

Fri. December 26  

🌅 8:04 a.m.

H: ≈31.6°F

L: ≈3.3°F

🌇 4:27 p.m.

Sat. December 27 🌓

🌅 8:04 a.m.

H: ≈31.5°F

L: ≈3.1°F

🌇 4:28 p.m.

Sun. December 28  

🌅 8:04 a.m.

H: ≈31.5°F

L: ≈2.9°F

🌇 4:28 p.m.

Mon. December 29  

🌅 8:04 a.m.

H: ≈31.4°F

L: ≈2.7°F

🌇 4:29 p.m.

Tue. December 30  

🌅 8:04 a.m.

H: ≈31.4°F

L: ≈2.5°F

🌇 4:30 p.m.

Wed. December 31  

🌅 8:05 a.m.

H: ≈31.3°F

L: ≈2.4°F

🌇 4:31 p.m.


Temperature climatic data from weather station: HARLEM 20S (USC00243934)

Precipitation climatic data from weather station: HARLEM 20S (USC00243934)

Agricultural climatic data from weather station: ROY 24 NE MOBRIDGE (USC00247234)