Walla Walla weather in May 2024

Expect 21°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Walla Walla in May. Check more long-term weather averages for Walla Walla in May before you book your next holiday to Washington State in 2024/2025.

  • 21°C maximum daytime temperature in May in Walla Walla21
    21°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in May in Walla Walla8
    8 days with some rainfall
  • 8°C minimum night-time temperature in May in Walla Walla8
    8°C min night temperature
  • 15 hours of daylight per day in May in Walla Walla15
    15 hours of daylight per day
  • No heat & humidity in May in Walla Walla0
    No heat & humidity
  • 45 mm monthly rainfall in May in Walla Walla45
    45 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Walla Walla6
    6 (High) UV index

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The May weather guide for Washington State (Walla Walla) 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)

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How hot is it in Walla Walla in May?

Daytime temperatures usually reach 21°C in Walla Walla in May, falling to 8°C at night.

How sunny is it in Walla Walla in May?

There are normally 9 hours of bright sunshine each day in Walla Walla in May - that's 62% of daylight hours.

Does it rain in Walla Walla in May?

There are usually 8 days with some rain in Walla Walla in May and the average monthly rainfall is 45mm.

Walla Walla May sunrise & sunset times

Browse the sunrise and sunset times for Walla Walla in May 2024. Select a month to view Walla Walla sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st May 2024 05:39 20:02
Thursday, 16th May 2024 05:19 20:21
Friday, 31st May 2024 05:06 20:37

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