August weather forecastAhtanum, WA
August
Weather in August
August, the last month of the summer in Ahtanum, is another hot month, with an average temperature fluctuating between 60.3°F (15.7°C) and 86.5°F (30.3°C).Temperature
The warmest month is August, with an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 60.3°F (15.7°C).Humidity
July and August, with an average relative humidity of 39%, are the least humid months.Rainfall
In August, the rain falls for 2 days. Throughout August, 0.16" (4mm) of precipitation is accumulated. Throughout the year, there are 82.2 rainfall days, and 5.43" (138mm) of precipitation is accumulated.Snowfall
In Ahtanum, snow does not fall in April through August and October.Daylight
In August, the average length of the day is 14h and 8min.On the first day of August, sunrise is at 5:44 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:42 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12.1h of sunshine.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 in August translates into these instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Ahtanum, WA
- Average high temperature in August: 86.5°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in August: 60.3°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in August
Ahtanum, WA
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in August
Ahtanum, WA
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in August
Ahtanum, WA
- Average humidity in August: 39%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in August
Ahtanum, WA
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in August
Ahtanum, WA
- Average rainfall days in August: 2 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall in August
Ahtanum, WA
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in August
Ahtanum, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Ahtanum, 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 6min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in August
Ahtanum, WA
- Average sunshine days in August: 27.4 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in August
Ahtanum, 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 January, February, November and December (UV index 2).
Average cloud cover in August
Ahtanum, WA
- Average cloud cover in August: 9
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in August
Ahtanum, 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).
