August weather forecastSpokane, WA
August
Weather in August
August sustains the heat and vibrant mood in Spokane, keeping the summer spirit alive. Even matching July in terms of the highest temperature, also reaching 83.7°F (28.7°C), August does not break the summer spell. Rainfall remains low, barely interrupting the sun-drenched days. The city revels in the summer zenith, graced by the bounty of daylight and overabundance of sunshine. Winds take a back seat, holding their breath in the sun-soaked afternoons of August.Temperature
In Spokane, the warmest months are July and August, registering an average high-temperature of 83.7°F (28.7°C).Humidity
August is the least humid month, with an average relative humidity of 38%.Rainfall
August is the month with the least rainfall. Rain falls for 5.8 days and accumulates 0.35" (9mm) of precipitation.Snowfall
In Spokane, snow does not fall in June through August.Daylight
In Spokane, Washington, the average length of the day in August is 14h and 13min.On the first day of August, sunrise is at 5:28 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:31 pm PDT.
Sunshine
With an average of 12h of sunshine, August has the most sunshine of the year in Spokane.UV index
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 5 in August leads to these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Spokane, WA
- Average high temperature in August: 83.7°F
The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (32.2°F).
- Average low temperature in August: 59°F
The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in August
Spokane, 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
Spokane, WA
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in August
Spokane, WA
- Average humidity in August: 38%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).
Average rainfall in August
Spokane, WA
- Average rainfall in August: 0.35"
The wettest month (with the highest rainfall) is March (2.13").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in August
Spokane, WA
- Average rainfall days in August: 5.8 days
The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is July (4.9 days).
Average snowfall in August
Spokane, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (10.39").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Spokane, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Spokane, WA
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in August
Spokane, WA
- Average sunshine days in August: 22.3 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is March (9.8 days).
Average UV index in August
Spokane, WA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in August
Spokane, WA
- Average cloud cover in August: 13
The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in August
Spokane, WA
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
