August weather forecastStartup, WA
August
Weather in August
August, the last month of the summer in Startup, is a moderately hot month, with an average temperature ranging between min 48°F (8.9°C) and max 73.4°F (23°C).Temperature
With an average high-temperature of 73.4°F (23°C) and an average low-temperature of 48°F (8.9°C), August is the warmest month.Humidity
In August, the average relative humidity in Startup is 73%.Rainfall
August is the month with the least rainfall. Rain falls for 7.9 days and accumulates 0.79" (20mm) of precipitation.Snowfall
In Startup, snow does not fall in May through October.Daylight
In August, the average length of the day is 14h and 13min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:41 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:49 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 10.4h of sunshine.UV index
The average daily maximum UV index in August in Startup is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 4 in August transforms into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Startup, WA
- Average high temperature in August: 73.4°F
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in August: 48°F
The month with the highest average low temperature is August (48°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).
Average pressure in August
Startup, WA
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in August
Startup, WA
- Average wind speed in August: 3.2mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).
Average humidity in August
Startup, WA
- Average humidity in August: 73%
The months with the highest relative humidity are January, February and March (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in August
Startup, WA
- Average rainfall in August: 0.79"
The wettest month (with the highest rainfall) is January (7.8").
The driest month (with the least rainfall) is August (0.79").
Average rainfall days in August
Startup, WA
- Average rainfall days in August: 7.9 days
The month with the highest number of rainy days is March (22.3 days).
The month with the least rainy days is August (7.9 days).
Average snowfall in August
Startup, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Startup, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Startup, WA
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in August
Startup, WA
- Average sunshine days in August: 19.9 days
The month with the most sunshine days is August (19.9 days).
The month with the least sunshine days is March (7 days).
Average UV index in August
Startup, WA
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in August
Startup, WA
- Average cloud cover in August: 30
The months with the most cloud cover are March and December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Startup, WA
- Average visibility in August: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
