August weather forecastRosalia, WA
August
Weather in August
August, the last month of the summer in Rosalia, is another warm month, with an average temperature varying between 61.3°F (16.3°C) and 83.8°F (28.8°C).Temperature
With the arrival of August, Rosalia's average high-temperature registers at a still warm 83.8°F (28.8°C), indicating a subtle variation from the previous month. Rosalia, during the nights of August, registers a substantial plunge from the daytime high, averaging at a refreshing 61.3°F (16.3°C).Humidity
With an average relative humidity of 36%, August is the least humid month.Rainfall
In August, the rain falls for 4 days. Throughout August, 0.24" (6mm) of precipitation is accumulated. Throughout the year, there are 84.3 rainfall days, and 7.24" (184mm) of precipitation is accumulated.Snowfall
In Rosalia, snow does not fall in June through August and October.Daylight
In Rosalia, the average length of the day in August is 14h and 11min.On the first day of August, sunrise is at 5:29 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:30 pm PDT.
Sunshine
August has the most sunshine of the year, 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 health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during August translates into the following guidance:
Take precautions - Protection against sun damage is advised. It's recommended to limit sun exposure when its radiation is at its peak during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rosalia, WA
- Average high temperature in August: 83.8°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (33.1°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in August
Rosalia, 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
Rosalia, WA
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Rosalia, WA
- Average humidity in August: 36%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (36%).
Average rainfall in August
Rosalia, WA
- Average rainfall in August: 0.24"
The wettest months (with the highest rainfall) are January and May (0.91").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in August
Rosalia, WA
- Average rainfall days in August: 4 days
The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in August
Rosalia, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and October (0").
Average snowfall days in August
Rosalia, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (9.3 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Rosalia, 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 36min).
- Average sunshine in August: 12h and 6min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in August
Rosalia, WA
- Average sunshine days in August: 24.3 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (15.9 days).
Average UV index in August
Rosalia, 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
Rosalia, WA
- Average cloud cover in August: 12
The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in August
Rosalia, WA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
