Average data for 10 years
1 December
Sunday
−1°
−6°
2 December
Monday
−4°
−7°
3 December
Tuesday
−5°
−8°
4 December
Wednesday
−5°
−9°
5 December
Thursday
−5°
−9°
6 December
Friday
−6°
−9°
7 December
Saturday
−5°
−8°
8 December
Sunday
−5°
−8°
9 December
Monday
−4°
−6°
10 December
Tuesday
−2°
−5°
11 December
Wednesday
−2°
−5°
12 December
Thursday
−3°
−5°
13 December
Friday
−4°
−9°
14 December
Saturday
−5°
−9°
15 December
Sunday
−6°
−10°
16 December
Monday
−6°
−9°
17 December
Tuesday
−4°
−7°
18 December
Wednesday
−5°
−8°
19 December
Thursday
−5°
−8°
20 December
Friday
−4°
−8°
21 December
Saturday
−5°
−9°
22 December
Sunday
−5°
−9°
23 December
Monday
−6°
−9°
24 December
Tuesday
−7°
−11°
25 December
Wednesday
−7°
−9°
26 December
Thursday
−5°
−8°
27 December
Friday
−4°
−7°
28 December
Saturday
−6°
−12°
29 December
Sunday
−6°
−10°
30 December
Monday
−4°
−11°
31 December
Tuesday
−4°
−11°
Cities near you
Canada
Medicine Hat
United States
Whitefish
Canada
Brooks
United States
Jackson
United States
Big Sky
Cities with similar weather in December
Kazakhstan
Ust-Kamenogorsk
Kazakhstan
Uralsk
Kyrgyzstan
Cholpon-Ata
Kazakhstan
Atyrau
Kazakhstan
Baikonur
December in Helena is the snowiest and the most freezing month of the year. In December, the weather in Helena is typically freezing. Average daily high temperature in December is about 5 degrees below zero. On average, Helena has 15 cloudy, 10 snowy, 3 sunny, and 3 partly cloudy days in December. The snowfalls are usually light.