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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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Walla Walla by month
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Recommended for Washington State
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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