Montana weather in January 2021

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Below are average maximum temperatures at popular destinations in Montana in January. Select a destination to see more weather parameters.

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The January weather guide for Montana shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How cold is it in Montana in January?

Daytime temperatures usually reach -1°C in Helena, Montana in January, falling to -13°C at night.

How sunny is it in Montana in January?

There are normally 4 hours of bright sunshine each day in Helena, Montana in January - that's 43% of daylight hours.

Does it rain in Montana in January?

There are usually 9 days with some rain in Helena, Montana in January and the average monthly rainfall is 17mm. Rain may fall as snow in this month.

Montana sunrise & sunset times for January 2021

Browse the sunrise & sunset times for Montana in January 2021. Select a month to view Montana sunrise & sunset times for the next twelve months. The Montana sunrise & sunset times shown below are for Helena.


Date Sunrise times Sunset times
Friday, 1st January 2021 08:12 16:52
Saturday, 16th January 2021 08:07 17:09
Sunday, 31st January 2021 07:53 17:31
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Metric (°C / mm)  |  Imperial (°F / inches)

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