Walla Walla
Washington, USA
Long-term weather forecast
Long-term weather forecast
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August weather forecast and Climate
Walla Walla, WA

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  • The average high temperature in August: 88.6°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (38.9°F).

  • The average low temperature in August: 61.1°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (28.5°F).

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  • The average rainfall in August: 0.6"

The wettest month (with the highest rainfall) is November (2.7").
Driest months (with the lowest rainfall) are July and August (0.6").

  • The average rainfall days in August: 2.7 days

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).

  • The average snowfall in August: 0"

The month with the highest snowfall is December (4.7").
Months with the lowest snowfall are April, May, June, July, August and September (0").

  • The average snowfall days in August: 0 days

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).

  • The average daylight in August: 14h

The month with the longest days is June (Average daylight: 16h).
Months with shortest days are January, November and December (Average daylight: 9h).

  • The average sunshine in August: 11.1h

The month with most sunshine is July (Average sunshine: 12.4h).
The month with least sunshine is December (Average sunshine: 1.3h).

  • The average UV index in August: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).

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