August weather forecast
McKenna, WA

Share

Weather in August

The last month of the summer, August, is another warm month in McKenna, Washington, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 50.5°F (10.3°C).

Temperature

August is the month when McKenna's temperatures reach their peak, with averages of 77.5°F (25.3°C) and lows of 50.5°F (10.3°C).

Humidity

In August, the average relative humidity in McKenna is 71%.

Rainfall

In McKenna, Washington, in August, during 5.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 178.1 rainfall days, and 33.82" (859mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In McKenna, the average length of the day in August is 14h and 9min.
On the first day of August, sunrise is at 5:50 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:50 pm PDT.

Sunshine

With an average of 10.6h of sunshine, August has the most sunshine of the year.

UV index

The average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 4 during August morphs into the following directions:
Exercise prevention - Warding off sunburn is urged. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest in McKenna?

In McKenna, Washington, the average highest temperatures are observed in August, with a high of 77.5°F (25.3°C) and a low of 50.5°F (10.3°C).

What is the usual temperature for McKenna in August?

In August, in McKenna, the average high-temperature is 77.5°F (25.3°C), and the average low-temperature is 50.5°F (10.3°C).

What is the average humidity in August in McKenna?

In McKenna, Washington, the average relative humidity in August is 71%.

How many days does it rain in August in McKenna?

In McKenna, during August, the rain falls for 5.3 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow in McKenna?

In McKenna, Washington, snow does not fall in May through October.

How many hours of daylight does McKenna have in August?

In August, the average day length is 14h and 9min.

When is the sunrise / sunset in August in McKenna?

In August, on the first day of the month, sunrise is at 5:50 am and sunset at 8:42 pm. On the last day of the month, in McKenna, sunrise is at 6:29 am and sunset at 7:50 pm PDT.

What month has the most sunshine in McKenna?

With an average of 10.6h of sunshine, August has the most sunshine of the year in McKenna.

How many hours of sunshine does McKenna have in August?

In August, the average sunshine duration is 10.6h.

What is the UV index intensity in August in McKenna?

In August, the average daily maximum UV index in McKenna is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
McKenna, WA

Average temperature in August - McKenna, 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 (43°F).

  • Average low temperature in August: 50.5°F

The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).

Average pressure in August
McKenna, WA

Average pressure in August - McKenna, WA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in August
McKenna, WA

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

The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in August
McKenna, WA

Average humidity in August - McKenna, WA
  • Average humidity in August: 71%

The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is July (70%).

Average rainfall in August
McKenna, WA

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

The wettest month (with the highest rainfall) is December (5.28").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in August
McKenna, WA

Average rainfall days in August - McKenna, WA
  • Average rainfall days in August: 5.3 days

The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).

Average snowfall in August
McKenna, WA

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

The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
McKenna, WA

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

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - McKenna, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).

Average sunshine days in August
McKenna, WA

Average sunshine days in August - McKenna, WA
  • Average sunshine days in August: 23.4 days

The month with the most sunshine days is August (23.4 days).
The months with the least sunshine days are February and March (8.8 days).

Average UV index in August
McKenna, WA

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

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

Average cloud cover in August
McKenna, WA

Average cloud cover in August - McKenna, WA
  • Average cloud cover in August: 28

The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
McKenna, WA

Average visibility in August - McKenna, WA
  • Average visibility in August: 5mi

The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).

McKenna, Washington, USA

Weather forecast for your location

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