August weather forecast
Glacier, WA

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Weather in August

The last month of the summer, August, is also an agreeable month in Glacier, Washington, with an average temperature fluctuating between 46.9°F (8.3°C) and 71.2°F (21.8°C).

Temperature

The average temperatures reach their apex in August, averaging 71.2°F (21.8°C) at the high end and 46.9°F (8.3°C) at the low end.

Humidity

The average relative humidity in August is 75%.

Rainfall

In Glacier, in August, during 10.3 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, in Glacier, there are 194.4 rainfall days, and 69.29" (1760mm) of precipitation is accumulated.

Snowfall

In Glacier, snow does not fall in June through September.

Daylight

In Glacier, the average length of the day in August is 14h and 19min.
On the first day of August, sunrise is at 5:42 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:51 pm PDT.

Sunshine

The month with the most sunshine in Glacier is August, with an average of 10h of sunshine.

UV index

In Glacier, the average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 4 during August leads to these advisories:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What time of the year is the hottest in Glacier?

In Glacier, August is the warmest month, with temperatures averaging a high of 71.2°F (21.8°C) and a low of 46.9°F (8.3°C).

What is the usual temperature for Glacier in August?

In August, the average high-temperature and low-temperature in Glacier are 71.2°F (21.8°C) and 46.9°F (8.3°C) respectively.

What is the average humidity in August in Glacier?

The average relative humidity in August is 75%.

How much does it rain in Glacier in August?

In Glacier, in August, during 10.3 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow in Glacier?

In Glacier, Washington, snow does not fall in June through September.

How many hours of daylight does Glacier have in August?

In Glacier, the average day length in August is 14h and 19min.

When are sunrise and sunset in August in Glacier?

In August, on the first day of the month, sunrise is at 5:42 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:51 pm PDT.

What month has the most sunshine in Glacier?

With an average of 10h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does Glacier have in August?

In August, the average sunshine duration in Glacier, Washington, is 10h.

How high is the UV index in August in Glacier?

In Glacier, Washington, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Glacier, WA

Average temperature in August - Glacier, WA
  • Average high temperature in August: 71.2°F

The warmest month (with the highest average high temperature) is August (71.2°F).
The month with the lowest average high temperature is December (35.6°F).

  • Average low temperature in August: 46.9°F

The month with the highest average low temperature is August (46.9°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

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Average pressure in August
Glacier, WA

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

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are May, June, August and September (30"Hg).

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Average wind speed in August
Glacier, WA

Average wind speed in August - Glacier, WA
  • Average wind speed in August: 3.3mph

The windiest month (with the highest average wind speed) is January (4.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in August
Glacier, WA

Average humidity in August - Glacier, WA
  • Average humidity in August: 75%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is July (74%).

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Average rainfall in August
Glacier, WA

Average rainfall in August - Glacier, WA
  • Average rainfall in August: 1.54"

The wettest month (with the highest rainfall) is January (10.39").
The driest month (with the least rainfall) is July (1.5").

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Average rainfall days in August
Glacier, WA

Average rainfall days in August - Glacier, WA
  • Average rainfall days in August: 10.3 days

The month with the highest number of rainy days is April (21.3 days).
The month with the least rainy days is August (10.3 days).

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Average snowfall in August
Glacier, WA

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

The month with the highest snowfall is February (22.36").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Glacier, WA

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

The month with the highest number of snowfall days is December (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Glacier, WA
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).

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Average sunshine days in August
Glacier, WA

Average sunshine days in August - Glacier, WA
  • Average sunshine days in August: 18.1 days

The month with the most sunshine days is August (18.1 days).
The month with the least sunshine days is April (6.8 days).

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Average UV index in August
Glacier, WA

Average UV index in August - Glacier, 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 and November (UV index 1).

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Average cloud cover in August
Glacier, WA

Average cloud cover in August - Glacier, WA
  • Average cloud cover in August: 34

The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in August
Glacier, WA

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

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

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Glacier, Washington, USA

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