Idaho weather in January 2020

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

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The January weather guide for Idaho 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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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Idaho weather in January

The average maximum daytime temperature in Idaho in January is a cold 2°C (36°F). The average night-time temperature is usually a very cold -6°C (21°F). There are usually 4 hours of bright sunshine each day, which represents 38% of the 9 hours of daylight.

Expect 38mm (1.5 inches) of rainfall across the whole of January with 12 days with some rain falling. Maximum UV levels will be low (1 UV index) at midday when the skies are clear.

The weather in Idaho in January is represented by Boise.

Idaho sunrise & sunset times for January 2020

Browse the sunrise & sunset times for Idaho in January 2020. Select a month to view Idaho sunrise & sunset times for the next twelve months. The Idaho sunrise & sunset times shown below are for Boise.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2020 08:18 17:19
Thursday, 16th January 2020 08:15 17:35
Friday, 31st January 2020 08:03 17:54
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