August weather forecast
Millwood, WA

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Weather in August

The last month of the summer, August, is another warm month in Millwood, Washington, with an average temperature fluctuating between 55.9°F (13.3°C) and 83.3°F (28.5°C).

Temperature

Millwood notes the warmest temperatures in August, with a high average of 83.3°F (28.5°C) and a low of 55.9°F (13.3°C).

Heat index

For August, the heat index is evaluated at 82.4°F (28°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

With an average relative humidity of 43%, August is the least humid month.

Rainfall

The months with the least rainfall are July and August Rain falls for 5.5 days and accumulates 0.35" (9mm) of rain.

Snowfall

In Millwood, snow does not fall in June through August.

Daylight

In Millwood, the average length of the day in August is 14h and 13min.
On the first day of August, sunrise is at 5:27 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:30 pm PDT.

Sunshine

The month with the most sunshine is August, with an average of 12h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

What is the hottest time of year?

In Millwood, Washington, the peak temperatures are generally noted in August, averaging a high of 83.3°F (28.5°C) and a low of 55.9°F (13.3°C).

Is it hot in Millwood during August?

An average high-temperature, in August, in Millwood, is 83.3°F (28.5°C) and the average low-temperature is 55.9°F (13.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 82.4°F (28°C).

What is the least humid month?

With an average relative humidity of 43%, August is the least humid month.

What is the average humidity in August?

In August, the average relative humidity is 43%.

What is the driest month?

The months with the least rainfall in Millwood are July and August Rain falls for 5.5 days and accumulates 0.35" (9mm) of rain.

How much does it rain in August?

In August, the rain falls for 5.5 days. Throughout August, 0.35" (9mm) of precipitation is accumulated.

When it does not snow?

In Millwood, snow does not fall in June through August.

Does it snow in August?

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

How many hours of daylight does Millwood have in August?

In August, the average day length in Millwood is 14h and 13min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:27 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:30 pm PDT.

What month has the most sunshine?

With an average of 12h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

In August, the average sunshine duration is 12h.

What is the UV index intensity in August?

The average daily maximum UV index in August in Millwood is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
Millwood, WA

Average temperature in August - Millwood, WA
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in August: 55.9°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

Average pressure in August
Millwood, WA

Average pressure in August - Millwood, WA
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in August
Millwood, WA

Average wind speed in August - Millwood, WA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

Average humidity in August
Millwood, WA

Average humidity in August - Millwood, WA
  • Average humidity in August: 43%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).

Average rainfall in August
Millwood, WA

Average rainfall in August - Millwood, WA
  • Average rainfall in August: 0.35"

The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").

Average rainfall days in August
Millwood, WA

Average rainfall days in August - Millwood, WA
  • Average rainfall days in August: 5.5 days

The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).

Average snowfall in August
Millwood, WA

Average snowfall in August - Millwood, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Millwood, WA

Average snowfall days in August - Millwood, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Millwood, 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 30min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

Average sunshine days in August
Millwood, WA

Average sunshine days in August - Millwood, WA
  • Average sunshine days in August: 23.2 days

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).

Average UV index in August
Millwood, WA

Average UV index in August - Millwood, WA
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Millwood, WA

Average cloud cover in August - Millwood, WA
  • Average cloud cover in August: 13

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in August
Millwood, WA

Average visibility in August - Millwood, WA
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Millwood, Washington, USA

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