August weather forecast
Rosalia, WA

Share

Weather in August

August, the last month of the summer in Rosalia, is also a moderately hot month, with an average temperature fluctuating between 61.3°F (16.3°C) and 83.8°F (28.8°C).

Temperature

Rosalia indicates an average high-temperature of a still warm 83.8°F (28.8°C) in August, showing minor variation from July's 84.4°F (29.1°C). Despite substantial daily fluctuations, the average low-temperature is a refreshing 61.3°F (16.3°C) during August.

Humidity

August is the least humid month, with an average relative humidity of 36%.

Rainfall

In Rosalia, during August, the rain falls for 4 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Rosalia, during the entire year, the rain falls for 84.3 days and collects up to 7.24" (184mm) of precipitation.

Snowfall

June through August and October are months without snowfall.

Daylight

The average length of the day in August in Rosalia 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

The month with the most sunshine is August, with an average of 12.1h of sunshine.

UV index

In Rosalia, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In August, an average UV index of 5 transforms into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
[Resources]

Frequently asked questions

Is it hot in Rosalia during August?

The high-temperature, in August, in Rosalia, is 83.8°F (28.8°C), while the low-temperature averages to 61.3°F (16.3°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 84.2°F (29°C).

What is the least humid month in Rosalia?

With an average relative humidity of 36%, August is the least humid month in Rosalia.

What is the average humidity in August in Rosalia?

In Rosalia, the average relative humidity in August is 36%.

How much does it rain in Rosalia in August?

In Rosalia, during August, the rain falls for 4 days and regularly aggregates up to 0.24" (6mm) of precipitation.

When it does not snow in Rosalia?

June through August and October are months without snowfall in Rosalia, Washington.

Does it snow in Rosalia in August?

In Rosalia, Washington, in August, it doesn't snow. In September, it regularly snows.

What is the average length of the day in August in Rosalia?

In Rosalia, Washington, the average day length in August is 14h and 11min.

What time are sunrise and sunset in August in Rosalia?

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.

What month has the most sunshine in Rosalia?

The month with the most sunshine in Rosalia, Washington, is August, with an average of 12.1h of sunshine.

How long on average sun shines in August in Rosalia?

The average sunshine duration in August is 12.1h.

How high is the UV index in August in Rosalia?

In Rosalia, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Rosalia, WA

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).

[Resources]

Average pressure in August
Rosalia, WA

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).

[Resources]

Average wind speed in August
Rosalia, WA

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).

[Resources]

Average humidity in August
Rosalia, WA

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%).

[Resources]

Average rainfall in August
Rosalia, WA

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").

[Resources]

Average rainfall days in August
Rosalia, WA

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).

[Resources]

Average snowfall in August
Rosalia, WA

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").

[Resources]

Average snowfall days in August
Rosalia, WA

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).

[Resources]

Average daylight in August /
Average sunshine in August
Rosalia, WA

Average daylight in August / Average sunshine in August - Rosalia, WA
  • Average daylight in August: 14h and 1min

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 1min

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).

[Resources]

Average sunshine days in August
Rosalia, WA

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).

[Resources]

Average UV index in August
Rosalia, WA

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).

[Resources]

Average cloud cover in August
Rosalia, WA

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).

[Resources]

Average visibility in August
Rosalia, WA

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).

[Resources]

Rosalia, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location