August weather forecast
Mount Rainier National Park, WA

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YearJFMAMJJAugustSOND
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A beautiful reflection in the clear waterfront of the trees and snowy mountain in Mount Rainier National Park, Washington
A beautiful reflection in the clear waterfront of the trees and snowy mountain in Mount Rainier National Park, Washington

Weather in August

August maintains the warm and welcoming ambiance of the previous month in Mount Rainier National Park. The weather remains largely stable, characterizing this month as the peak of the summer season. A remarkable highlight in August is the nearly total drought of snowfall, only 0.1" (3mm) registered. This dry spell enables outdoor enthusiasts to have uninterrupted fun exploring the park's wilderness. The abundance of daylight hours calls for extended ambling hikes through the park's inviting trails.

Temperature

Mount Rainier National Park registers the highest average temperatures during the month of August, with peaks of 64.6°F (18.1°C) and lows of 43.9°F (6.6°C).

Rainfall

In Mount Rainier National Park, in August, during 6.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, there are 188.7 rainfall days, and 118.31" (3005mm) of precipitation is accumulated.

Snowfall

January through December are months with snowfall in Mount Rainier National Park, Washington. The month with the least snowfall is August, when snow falls for 0.1 days and typically aggregates up to 0.12" (3mm) of snow.

Daylight

In August, the average length of the day is 14h and 9min.
On the first day of August, sunrise is at 5:47 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:47 pm PDT.
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Frequently asked questions

What is the hottest time of year in Mount Rainier National Park?

The warmest period in Mount Rainier National Park tends to be August, when average temperatures fluctuate between a high of 64.6°F (18.1°C) and a low of 43.9°F (6.6°C).

What is the temperature in August in Mount Rainier National Park?

The average high-temperature, in August, in Mount Rainier National Park, is 64.6°F (18.1°C), while the average low-temperature is 43.9°F (6.6°C).

How many days does it rain in August in Mount Rainier National Park?

In August, in Mount Rainier National Park, Washington, the rain falls for 6.6 days. Throughout August, 1.97" (50mm) of precipitation is accumulated.

When it does not snow in Mount Rainier National Park?

August is the month with the least snowfall. Snow falls for 0.1 days and accumulates 0.12" (3mm) of snow.

How much does it snow in Mount Rainier National Park in August?

In August, it is snowing for 0.1 days. Throughout August, 0.12" (3mm) of snow is accumulated.

What is the average length of the day in August in Mount Rainier National Park?

In Mount Rainier National Park, Washington, the average day length in August is 14h and 9min.

When are sunrise and sunset in August in Mount Rainier National Park?

In August, on the first day of the month, sunrise is at 5:47 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:47 pm PDT.
Today
Tomorrow
Long-term
YearJFMAMJJAugustSOND
Jul
August
Sep
Average high temperature
63.3°F 17.4°C
64.5°F 18.1°C
58.1°F 14.5°C
Average low temperature
42.7°F 5.9°C
43.9°F 6.6°C
39.7°F 4.3°C
Average rainfall
2" 51mm
2" 51mm
4.7" 119mm
Average rainfall days
7.3
6.6
9.6
Average snowfall
0.3" 8mm
0.1" 3mm
1.4" 36mm
Average snowfall days
0.2
0.1
0.7
Average daylight
15h 2min
14h 1min
12h 3min

Average temperature in August
Mount Rainier National Park, WA

Average temperature in August - Mount Rainier National Park, WA
  • Average high temperature in August: 64.5°F

The warmest month (with the highest average high temperature) is August (64.5°F).
The month with the lowest average high temperature is December (33.8°F).

  • Average low temperature in August: 43.9°F

The month with the highest average low temperature is August (43.9°F).
The coldest month (with the lowest average low temperature) is December (21.1°F).

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Average rainfall in August
Mount Rainier National Park, WA

Average rainfall in August - Mount Rainier National Park, WA
  • Average rainfall in August: 2"

The wettest month (with the highest rainfall) is November (20.3").
The driest months (with the least rainfall) are July and August (2").

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Average rainfall days in August
Mount Rainier National Park, WA

Average rainfall days in August - Mount Rainier National Park, WA
  • Average rainfall days in August: 6.6 days

The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is August (6.6 days).

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Average snowfall in August
Mount Rainier National Park, WA

Average snowfall in August - Mount Rainier National Park, WA
  • Average snowfall in August: 0.1"

The months with the highest snowfall are January, November and December (99.9").
The month with the least snowfall is August (0.1").

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Average snowfall days in August
Mount Rainier National Park, WA

Average snowfall days in August - Mount Rainier National Park, WA
  • Average snowfall days in August: 0.1 days

The month with the highest number of snowfall days is March (19.5 days).
The month with the least snowfall days is August (0.1 days).

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Average daylight in August
Mount Rainier National Park, WA

Average daylight in August - Mount Rainier National Park, 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).

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Mount Rainier National Park, Washington, USA

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