August weather forecastAriel, WA
August
Weather in August
The last month of the summer, August, is another warm month in Ariel, Washington, with an average temperature fluctuating between 77.7°F (25.4°C) and 50.5°F (10.3°C).Temperature
The temperatures reach their highest averages in August, with highs of 77.7°F (25.4°C) and lows of 50.5°F (10.3°C).Humidity
July and August, with an average relative humidity of 69%, are the least humid months.Rainfall
In August, in Ariel, the rain falls for 5.6 days. Throughout August, 0.59" (15mm) of precipitation is accumulated. In Ariel, during the entire year, the rain falls for 182.3 days and collects up to 48.11" (1222mm) of precipitation.Snowfall
In Ariel, snow does not fall in April through October.Daylight
The average length of the day in August is 14h and 5min.On the first day of August, sunrise is at 5:53 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:49 pm PDT.
Sunshine
The month with the most sunshine in Ariel is August, with an average of 10.5h of sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 4 in August translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Ariel, WA
- Average high temperature in August: 77.7°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (40.6°F).
- Average low temperature in August: 50.5°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in August
Ariel, WA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in August
Ariel, WA
- Average wind speed in August: 4.1mph
The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in August
Ariel, WA
- Average humidity in August: 69%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in August
Ariel, WA
- Average rainfall in August: 0.59"
The wettest month (with the highest rainfall) is January (7.64").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in August
Ariel, WA
- Average rainfall days in August: 5.6 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in August
Ariel, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Ariel, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.2 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
Ariel, 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: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in August
Ariel, WA
- Average sunshine days in August: 23.4 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in August
Ariel, WA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in August
Ariel, WA
- Average cloud cover in August: 29
The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Ariel, WA
- Average visibility in August: 5mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).





