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United States weather

Weather in Helena, Montana for December 2026

Your guide to Helena weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Helena usually enjoys a light touch of snow in December.

    • Rain 🌧️

  • Precipitation in Helena during December is a rare event, with an average of fewer than 2 rainy days.

    • More

  • Is December a good time to visit Helena? check out the best time to travel to Helena page.

  • ✨ Is December a good time to visit Helena? – Ask the AI Weatherman

Average dry days
27
Dry days
Average rainy days
1
Rainy days
Average snowy days
3
Snow days
Average temperatures
3°/-4°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Helena Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
1°
2
Sunny
3°
3
Partly cloudy
4°
4
Sunny
4°
5
Light snow
4°
6
Sunny
5°
7
Overcast
6°
8
Light freezing rain
4°
9
Partly cloudy
2°
10
Light snow
5°
11
Overcast
6°
12
Light snow
2°
13
Overcast
4°
14
Overcast
7°
15
Light snow
4°
16
Light freezing rain
3°
17
Light rain
2°
18
Patchy rain possible
4°
19
Partly cloudy
2°
20
Overcast
3°
21
Overcast
3°
22
Partly cloudy
4°
23
Overcast
6°
24
Overcast
4°
25
Light snow
5°
26
Light freezing rain
4°
27
Cloudy
1°
28
Light freezing rain
0°
29
Patchy moderate snow
2°
30
Light freezing rain
3°
31
Overcast
3°

Temperatures trend during December in Helena

See the weather trend as well as the moving average line

December weather in Helena day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Cloudy
Cloudy
 1° /-8° 0 mm 0 cm
Dec. 2 Sunny
Sunny
 3° /-5° 0 mm 0 cm
Dec. 3 Partly cloudy
Partly cloudy
 4° /-7° 0 mm 0 cm
Dec. 4 Sunny
Sunny
 4° /-5° 0 mm 0 cm
Dec. 5 Light snow
Light snow
 4° /-6° 2.3 mm 1.7 cm
Dec. 6 Sunny
Sunny
 5° /-4° 0 mm 0 cm
Dec. 7 Overcast
Overcast
 6° /-2° 0.3 mm 0 cm
Dec. 8 Light freezing rain
Light freezing rain
 4° /-2° 0.1 mm 0 cm
Dec. 9 Partly cloudy
Partly cloudy
 2° /-4° 0 mm 0 cm
Dec. 10 Light snow
Light snow
 5° /-3° 4.2 mm 2.3 cm
Dec. 11 Overcast
Overcast
 6° /-1° 0.1 mm 0 cm
Dec. 12 Light snow
Light snow
 2° /-4° 1.6 mm 1.2 cm
Dec. 13 Overcast
Overcast
 4° /-5° 0 mm 0 cm
Dec. 14 Overcast
Overcast
 7° /-2° 0 mm 0 cm
Dec. 15 Light snow
Light snow
 4° /-4° 3.6 mm 2.2 cm
Dec. 16 Light freezing rain
Light freezing rain
 3° /-4° 0.6 mm 0 cm
Dec. 17 Light rain
Light rain
 2° /-5° 2.6 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 4° /-3° 0.2 mm 0 cm
Dec. 19 Partly cloudy
Partly cloudy
 2° /-6° 0 mm 0 cm
Dec. 20 Overcast
Overcast
 3° /-5° 0 mm 0 cm
Dec. 21 Overcast
Overcast
 3° /-5° 0 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
 4° /-2° 0.2 mm 0 cm
Dec. 23 Overcast
Overcast
 6° /-3° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 4° /-2° 0 mm 0 cm
Dec. 25 Light snow
Light snow
 5° /-2° 2.3 mm 1 cm
Dec. 26 Light freezing rain
Light freezing rain
 4° /-2° 0.3 mm 0 cm
Dec. 27 Cloudy
Cloudy
 1° /-10° 0 mm 0 cm
Dec. 28 Light freezing rain
Light freezing rain
 0° /-9° 0.2 mm 0 cm
Dec. 29 Patchy moderate snow
Patchy moderate snow
 2° /-6° 1.4 mm 0.3 cm
Dec. 30 Light freezing rain
Light freezing rain
 3° /-6° 0.3 mm 0 cm
Dec. 31 Overcast
Overcast
 3° /-7° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Helena in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Helena forecast closer to your planned date for the most up-to-date weather information.
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Helena in December - FAQ

What are the expected maximum and minimum temperatures in Helena during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Helena during December?
In December, Helena can expect light to moderate rainfall, totaling 20.2 mm across approximately 1 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Helena in December 2026?
Helena experiences an average snowfall of 8.6 cm during December, occurring over 3 days.

What are the typical wind conditions in Helena during December?
The average wind speed in Helena during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Helena snow forecast December 2026

Track daily snowfall levels and discover Helena’s snowy potential this December ❄️
On average, Helena sees 3 snowy days during December, with approximately 8.6 cm of total snowfall.

December rainfall patterns in Helena

Explore the daily rainfall trends and prepare for Helenas December weather 💧
Typically, Helena has 1 rainy days in December with a total of 20.2 mm of rainfall.
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Location coordinates Where is Helena?

Get accurate weather forecasts for Helena, located at latitude 46.593 and longitude -112.036. Stay updated with localized weather information tailored for Helena.

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