August weather forecast
Granite Falls, WA

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Weather in August

August, the last month of the summer in Granite Falls, is also an agreeable month, with an average temperature ranging between max 73°F (22.8°C) and min 52.5°F (11.4°C).

Temperature

In Granite Falls, Washington, the month of August is known for its highest average temperatures, reaching a high of 73°F (22.8°C) and a low of 52.5°F (11.4°C).

Humidity

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

Rainfall

In Granite Falls, in August, it is raining for 6.1 days, with typically 0.51" (13mm) of accumulated precipitation. In Granite Falls, during the entire year, the rain falls for 179.1 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

In Granite Falls, snow does not fall in May through October.

Daylight

In August, the average length of the day is 14h and 14min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:43 pm. On the last day of August, in Granite Falls, sunrise is at 6:25 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

In Granite Falls, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 4 translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in Granite Falls?

August stands out as Granite Falls's warmest month, with an average high-temperature of 73°F (22.8°C) and a low-temperature of 52.5°F (11.4°C).

What are August temperatures in Granite Falls?

The high-temperature during August is 73°F (22.8°C) and the low-temperature is 52.5°F (11.4°C).

What is the average humidity in August in Granite Falls?

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

How many days does it rain in August in Granite Falls?

In August, in Granite Falls, Washington, the rain falls for 6.1 days. Throughout August, 0.51" (13mm) of precipitation is accumulated.

When it does not snow in Granite Falls?

May through October are months without snowfall.

How many hours of daylight does Granite Falls have in August?

In Granite Falls, the average day length in August is 14h and 14min.

When is the sunrise / sunset in August in Granite Falls?

In August, on the first day of the month, sunrise is at 5:45 am and sunset at 8:43 pm. On the last day of the month, in Granite Falls, sunrise is at 6:25 am and sunset at 7:50 pm PDT.

What month has the most sunshine in Granite Falls?

With an average of 10.6h of sunshine, August has the most sunshine of the year in Granite Falls, Washington.

How many hours of sunshine does Granite Falls have in August?

In August, the average sunshine duration in Granite Falls, Washington, is 10.6h.

How high is the UV index in August in Granite Falls?

In Granite Falls, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents 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
Granite Falls, WA

Average temperature in August - Granite Falls, WA
  • Average high temperature in August: 73°F

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in August: 52.5°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

Average pressure in August
Granite Falls, WA

Average pressure in August - Granite Falls, WA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in August
Granite Falls, WA

Average wind speed in August - Granite Falls, WA
  • Average wind speed in August: 3.5mph

The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in August
Granite Falls, WA

Average humidity in August - Granite Falls, WA
  • Average humidity in August: 74%

The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).

Average rainfall in August
Granite Falls, WA

Average rainfall in August - Granite Falls, WA
  • Average rainfall in August: 0.51"

The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").

Average rainfall days in August
Granite Falls, WA

Average rainfall days in August - Granite Falls, WA
  • Average rainfall days in August: 6.1 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in August
Granite Falls, WA

Average snowfall in August - Granite Falls, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Granite Falls, WA

Average snowfall days in August - Granite Falls, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.1 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
Granite Falls, WA

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • 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 12min).

Average sunshine days in August
Granite Falls, WA

Average sunshine days in August - Granite Falls, WA
  • Average sunshine days in August: 23.1 days

The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).

Average UV index in August
Granite Falls, WA

Average UV index in August - Granite Falls, 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
Granite Falls, WA

Average cloud cover in August - Granite Falls, WA
  • Average cloud cover in August: 26

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in August
Granite Falls, WA

Average visibility in August - Granite Falls, WA
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).

Granite Falls, Washington, USA

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