Monthly weather forecast and climate
Walla Walla, WA

The small city of Walla Walla in Washington, from the sky, rays of the sun on some of the tall buildings, and a far view of a vast hilly layout
The small city of Walla Walla in Washington, from the sky, rays of the sun on some of the tall buildings, and a far view of a vast hilly layout

How much does it rain in Walla Walla?

Throughout the year, in Walla Walla, Washington, there are 107.6 rainfall days, and 19.7" (500.1mm) of precipitation is accumulated.

When does it snow in Walla Walla?

January through March, October through December are months with snowfall in Walla Walla.

How much does it snow in Walla Walla?

In Walla Walla, Washington, during the entire year, snow falls for 9.3 days, and aggregates up to 13.3" (337.8mm) of snow.

What is the month with the lowest UV index in Walla Walla?

Months with the lowest UV index in Walla Walla are January, November and December, with an average UV index of 1.

What are the months with the highest UV index in Walla Walla?

Months with the highest UV index in Walla Walla are June and July, with an average UV index of 8.

What is the warmest month in Walla Walla?

July is the warmest month in Walla Walla, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 61.2°F (16.2°C).

What is the driest month in Walla Walla?

August is the month with the least rainfall in Walla Walla, Washington. Rain falls for 2.7 days and accumulates 0.6" (15.2mm) of precipitation.

What is the wettest month in Walla Walla?

November is the month with the most rainfall. Rain falls for 13.9 days and accumulates 2.6" (67.3mm) of precipitation.

What is the coldest month in Walla Walla?

The coldest month is December, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 28.6°F (-1.9°C).

What is the snowiest month in Walla Walla?

The month with the most snowfall in Walla Walla is December when snow falls for 3.3 days and typically aggregates up to 4.7" (119.4mm) of snow.
Average temperature - Walla Walla, WA
Average rainfall - Walla Walla, WA
Average rainfall days - Walla Walla, WA

The month with the highest number of rainy days is November (13.9 days).
The month with the lowest number of rainy days is August (2.7 days).

Average snowfall - Walla Walla, WA
Average snowfall days - Walla Walla, WA

The month with the highest number of snowfall days is December (3.3 days).
Months with the lowest number of snowfall days are April, May, June, July, August and September (0 days).

Average daylight / Average sunshine - Walla Walla, WA
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