When is the best time to go to Mount Rainier National Park (Washington)?

When is the best time to go to Mount Rainier National Park (Washington)? Here's some information to help you in your decision:

  • The best months for good weather in Mount Rainier National Park (Washington) are July and August
  • On average, the warmest months are July and August
  • February is the coldest month of the year
  • The rainiest months are January, February and December


Annual weather in Mount Rainier National Park (Washington)

For full information about the climate and weather in Mount Rainier National Park (Washington) a specific month, click on the corresponding line below:

Month
January 23°F/38°F
12.6in
February 22°F/38°F
10.6in
March 25°F/41°F
10in
April 31°F/49°F
5.4in
May 40°F/59°F
5in
June 45°F/68°F
2.8in
July 52°F/79°F
0.9in
August 52°F/79°F
1.5in
September 45°F/70°F
3in
October 34°F/56°F
8.3in
November 29°F/43°F
10in
December 25°F/38°F
11.5in


Weather and climate in Mount Rainier National Park (Washington)

Mount Rainier National Park (Washington) enjoys a warm-summer Mediterranean climate in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Mount Rainier National Park (Washington) is 56°F (ranging from 38°F in december to 79°F in august). Annual rainfall is 81.4in, with a minimum of 0.9in in july and a maximum of 12.6in in january.
  • Between the months of january and may the climate is very bad. By early evening, the temperature averages 50°F and it rains about 25% of the time in may.
  • In the month of june the climate is just OK. The record temperature this month is 103°F and it rains about 2.8in each month.
  • From july to august the climate is favorable. The record temperature this month is 103°F and it rains about 5% of the time in august.
  • In the month of september the climate is just OK. In average, on the morning it is 45°F and, in september, 4 days of rain are expected.
  • Between the months of october and december the climate is very unfavorable. In average, on the morning it is 27°F and it rains about 37% of the time in december.


Charts: temperature and rainfall in Mount Rainier National Park (Washington)

In the charts below, you can see the following seasonal norms for the city of Mount Rainier National Park (Washington): the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Humidity



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