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Idaho Falls weather in May 2025
Expect 19°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Idaho Falls in May. Check more long-term weather averages for Idaho Falls in May before you book your next holiday to Idaho in 2025/2026.
- 1919°C max day temperature
- 10 hours of sunshine per day
- 1010 days with some rainfall
- 44°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 3535 mm of monthly rainfall
- 88 (Very High) UV index
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Recommended for Idaho
The May weather guide for Idaho (Idaho Falls) 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.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Idaho Falls in May?
Daytime temperatures usually reach 19°C in Idaho Falls in May, falling to 4°C at night.
How sunny is it in Idaho Falls in May?
There are normally 10 hours of bright sunshine each day in Idaho Falls in May - that's 66% of daylight hours.
Does it rain in Idaho Falls in May?
There are usually 10 days with some rain in Idaho Falls in May and the average monthly rainfall is 35mm.
Idaho Falls May sunrise & sunset times
Browse the sunrise and sunset times for Idaho Falls in May 2025. Select a month to view Idaho Falls sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 05:20 | 19:31 |
Friday, 16th May 2025 | 05:02 | 19:48 |
Saturday, 31st May 2025 | 04:50 | 20:02 |
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