August weather forecastWashtucna, WA
August
Weather in August
The last month of the summer, August, is another warm month in Washtucna, Washington, with an average temperature varying between 64.6°F (18.1°C) and 85.1°F (29.5°C).Temperature
With the onset of August, the average high-temperature stands at a still warm 85.1°F (29.5°C), closely aligned with July's 85.6°F (29.8°C). During the month of August, Washtucna's nighttime temperature lowers to an average of 64.6°F (18.1°C).Humidity
With an average relative humidity of 34%, August is the least humid month in Washtucna.Rainfall
The months with the least rainfall are July and August Rain falls for 4.8 days and accumulates 0.31" (8mm) of rain.Snowfall
In Washtucna, snow does not fall in May through August.Daylight
In Washtucna, the average length of the day in August is 14h and 8min.On the first day of August in Washtucna, sunrise is at 5:34 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:33 pm PDT.
Sunshine
The months with the most sunshine in Washtucna, Washington, are July and August, with an average of 12h of sunshine.UV index
In Washtucna, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Washtucna, WA
- Average high temperature in August: 85.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in August: 64.6°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in August
Washtucna, WA
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in August
Washtucna, WA
- Average wind speed in August: 7.3mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in August
Washtucna, WA
- Average humidity in August: 34%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (34%).
Average rainfall in August
Washtucna, WA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is March (1.38").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in August
Washtucna, WA
- Average rainfall days in August: 4.8 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is July (4.2 days).
Average snowfall in August
Washtucna, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Washtucna, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Washtucna, WA
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in August
Washtucna, WA
- Average sunshine days in August: 23.3 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in August
Washtucna, 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
Washtucna, WA
- Average cloud cover in August: 12
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in August
Washtucna, WA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





