August weather forecast
Mount Rainier National Park, WA

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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

In Mount Rainier National Park, August records the highest average temperatures, peaking at 64.6°F (18.1°C) and reaching a low of 43.9°F (6.6°C).

Rainfall

In August, the rain falls for 6.6 days. Throughout August, 1.97" (50mm) of precipitation is accumulated. In Mount Rainier National Park, during the entire year, the rain falls for 188.7 days and collects up to 118.31" (3005mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Mount Rainier National Park 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.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

August is the warmest month, with an average high-temperature of 64.6°F (18.1°C) and an average low-temperature of 43.9°F (6.6°C).

What is the average August temperature?

The high-temperature during August is 64.6°F (18.1°C) and the low-temperature is 43.9°F (6.6°C).

How much does it rain in August?

In Mount Rainier National Park, in August, it is raining for 6.6 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow?

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.

How many days does it snow 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?

The average day length in August is 14h and 9min.

When are sunrise and sunset in August?

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.
Average rainfall
Average rainfall days
Average snowfall days
Average daylight

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).

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").

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).

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").

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).

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).

Mount Rainier National Park, Washington, USA

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