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Walla Walla weather in May 2025
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 2025/2026.
- 2121°C max day temperature
- 9 hours of sunshine per day
- 88 days with some rainfall
- 88°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 4545 mm of monthly rainfall
- 66 (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)
More about the USA
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 2025. Select a month to view Walla Walla sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 04:39 | 19:02 |
Friday, 16th May 2025 | 04:19 | 19:21 |
Saturday, 31st May 2025 | 04:06 | 19:36 |
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