August weather forecastWallula, WA
August
Weather in August
The last month of the summer, August, is another hot month in Wallula, Washington, with temperature in the range of an average high of 89.2°F (31.8°C) and an average low of 64°F (17.8°C).Temperature
August brings an average high-temperature of a still hot 89.2°F (31.8°C), nearly identical to the preceding month. Despite a significant deviation from daily highs, August sees an average nighttime temperature of 64°F (17.8°C) in Wallula.Humidity
The average relative humidity in August is 36%.Rainfall
In Wallula, in August, it is raining for 3.8 days, with typically 0.24" (6mm) of accumulated precipitation. In Wallula, during the entire year, the rain falls for 102.8 days and collects up to 7.32" (186mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Wallula, the average length of the day in August is 14h and 5min.On the first day of the month, sunrise is at 5:38 am and sunset at 8:24 pm. On the last day of August, in Wallula, sunrise is at 6:16 am and sunset at 7:35 pm PDT.
Sunshine
In August, the average sunshine in Wallula is 12h.UV index
In Wallula, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during August leads to these instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Wallula, WA
- Average high temperature in August: 89.2°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in August: 64°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in August
Wallula, WA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in August
Wallula, WA
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in August
Wallula, WA
- Average humidity in August: 36%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (35%).
Average rainfall in August
Wallula, WA
- Average rainfall in August: 0.24"
The wettest months (with the highest rainfall) are March and December (0.94").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in August
Wallula, WA
- Average rainfall days in August: 3.8 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in August
Wallula, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Wallula, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Wallula, WA
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in August
Wallula, WA
- Average sunshine days in August: 24.6 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (15.4 days).
Average UV index in August
Wallula, WA
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Wallula, WA
- Average cloud cover in August: 10
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in August
Wallula, WA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
