August weather forecast
Napavine, WA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Napavine, Washington, with an average temperature varying between 50°F (10°C) and 77.5°F (25.3°C).

Temperature

August is Napavine's warmest month, registering average high temperatures of 77.5°F (25.3°C) and lows of 50°F (10°C).

Humidity

In August, the average relative humidity in Napavine is 74%.

Rainfall

In Napavine, in August, during 6.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in Napavine, there are 185.5 rainfall days, and 36.1" (917mm) of precipitation is accumulated.

Snowfall

In Napavine, snow does not fall in April through October.

Daylight

In August, the average length of the day is 14h and 8min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:51 pm PDT.

Sunshine

The month with the most sunshine in Napavine is August, with an average of 10.2h of sunshine.

UV index

In August, the average daily maximum UV index in Napavine, Washington, is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 4 in August leads to these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What is the warmest month in Napavine?

In Napavine, the average highest temperatures are observed in August, with a high of 77.5°F (25.3°C) and a low of 50°F (10°C).

What is the usual temperature for Napavine in August?

The average high-temperature, in August, in Napavine, is 77.5°F (25.3°C), while the average low-temperature is 50°F (10°C).

What is the average humidity in August in Napavine?

In Napavine, the average relative humidity in August is 74%.

How much does it rain in Napavine in August?

In August, in Napavine, Washington, the rain falls for 6.4 days. Throughout August, 0.55" (14mm) of precipitation is accumulated.

When it does not snow in Napavine?

April through October are months without snowfall in Napavine.

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

In Napavine, Washington, the average day length in August is 14h and 8min.

When are sunrise and sunset in August in Napavine?

In August, on the first day of the month, sunrise is at 5:53 am and sunset at 8:42 pm. On the last day of the month, in Napavine, sunrise is at 6:31 am and sunset at 7:51 pm PDT.

What month has the most sunshine in Napavine?

The month with the most sunshine in Napavine, Washington, is August, with an average of 10.2h of sunshine.

How many hours of sunshine does Napavine have in August?

The average sunshine duration in August in Napavine, Washington, is 10.2h.

How high is the UV index in August in Napavine?

In August, the average daily maximum UV index is 4. 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
Napavine, WA

Average temperature in August - Napavine, WA
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in August: 50°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).

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Average pressure in August
Napavine, WA

Average pressure in August - Napavine, WA
  • Average pressure in August: 30.02"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).

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Average wind speed in August
Napavine, WA

Average wind speed in August - Napavine, WA
  • Average wind speed in August: 3.7mph

The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

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Average humidity in August
Napavine, WA

Average humidity in August - Napavine, WA
  • Average humidity in August: 74%

The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in August
Napavine, WA

Average rainfall in August - Napavine, WA
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").

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Average rainfall days in August
Napavine, WA

Average rainfall days in August - Napavine, WA
  • Average rainfall days in August: 6.4 days

The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).

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Average snowfall in August
Napavine, WA

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

The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Napavine, WA

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

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

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: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

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Average sunshine days in August
Napavine, WA

Average sunshine days in August - Napavine, WA
  • Average sunshine days in August: 20.8 days

The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index in August
Napavine, WA

Average UV index in August - Napavine, WA
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Napavine, WA

Average cloud cover in August - Napavine, WA
  • Average cloud cover in August: 38

The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in August
Napavine, WA

Average visibility in August - Napavine, WA
  • Average visibility in August: 4mi

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

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Napavine, Washington, USA

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