Idaho weather in May 2020

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

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The May 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 May

The average maximum daytime temperature in Idaho in May is a warm 22°C (72°F). The average night-time temperature is usually a cold 6°C (43°F). There are usually 11 hours of bright sunshine each day, which represents 73% of the 15 hours of daylight.

Expect 27mm (1.1 inches) of rainfall across the whole of May with 7 days with some rain falling. Maximum UV levels will be high (7 UV index) at midday when the skies are clear.

The weather in Idaho in May is represented by Boise.

Idaho sunrise & sunset times for May 2020

Browse the sunrise & sunset times for Idaho in May 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
Friday, 1st May 2020 06:36 20:48
Saturday, 16th May 2020 06:18 21:05
Sunday, 31st May 2020 06:07 21:19
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