United StatesThe weather in May in Walla Walla
It's warm in May in Walla Walla with an average temperature of 23°C. Temperatures this month range from a low of 20°C to a high of 27°C. At night, you can expect temperatures between 8°C and 14°C.
Looking for great weather? May is a good time to be in Walla Walla. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Walla Walla, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2017, Walla Walla reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 11°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 20°C.
Rainfall amount
In May, there is an average of 53 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Walla Walla
Click on any day in May to get detailed info about the usual weather on that day in Walla Walla. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Walla Walla | New York | |
|---|---|---|
| Average temperature | 23°C | 22°C |
| Max. temperature | 27°C | 28°C |
| Min. temperature | 8°C | -5°C |
| Total precipitation | 53 mm | 105 mm |
| Rainy days | 9 days | 14 days |
Start of May
The month of May starts in Walla Walla with warm temps, averaging around 23°C during the day and nights around 10°C.
Mid May
By mid-May, daytime temps stay steady at around 23°C, with nights around 12°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of May
By the end of May, the average daytime temperature in Walla Walla is around 25°C, while nighttime temps are about 14°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Walla Walla for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Walla Walla, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Walla Walla
Temperature in May in Walla Walla over the years
Precipitation charts
These charts show the average amount of precipitation in May in Walla Walla, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Walla Walla
Total precipitation in May in Walla Walla over the years
Daily UV index in May in Walla Walla
This chart shows the average daily UV index in May in Walla Walla, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Walla Walla
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Average weather in Walla Walla by month
Click on a month below to see detailed weather info for Walla Walla. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.