Helena Weather in December

What's the weather like in Helena (Montana) in December 2024?

The climate in Helena during December can be summarized as cold and dry.

December is in the winter in Helena and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing -0°C (32°F), whilst at night -12°C (11°F) is normal.

Helena weather averages (imperial / metric)
Daytime temperature -0.3°C 31.6°F
Nightly temperature -12°C 10.5°F
Average temperature -6.1°C 21°F
Daily sunshine 3.7 hrs
Avg rainfall 16 mm 0.6 ins
Rainy days 9 days
Sea temperature 8.3°C 46.9°F
Humidity 69%
Windspeed 14kph 9 mph

On average December is the 2nd driest month of the year in Helena with around 16mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.7 hours of sunshine per day.

December temperatures in Helena

Helena average temperature in December

December rainfall

Helena average rain in December

December hourly sunshine

Helena average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Helena in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Helena weather stats

Helena weather statistics
Hottest month: July 27.9°C 82.2°F
Driest month: February 12mm 0.5ins
Sunniest month: July 12.8hrs
Coldest month: January -1.3°C 29.7°F
Wettest month: June 55mm 2.2ins
Map showing location of Helena (46.59271, -112.03611) Helena map pin © Google

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