A beautiful reflection in the clear waterfront of the trees and snowy mountain in Mount Rainier National Park, Washington
Weather in December
As the year comes to an end, December brings the full force of winter to Mount Rainier National Park. The plummeting temperatures and heavy snowfall provide a proper winter paradise for snow enthusiasts. Snowfall remains at its highest at 99.9" (2537mm), the same as the beginning of the year. Despite fewer daylight hours, the park exudes a unique charm under the frosty white landscape. December wraps up the year in a blanket of pristine snow, offering sublime scenery and exciting winter activities.
On the first day of December in Mount Rainier National Park, Washington, sunrise is at 7:32 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:28 pm PST.
[Resources]Temperature
The coldest time of the year in Mount Rainier National Park is December, with temperatures averaging a high of 33.8°F (1°C) and a low of 21°F (-6.1°C).Rainfall
In Mount Rainier National Park, during December, the rain falls for 21.1 days and regularly aggregates up to 17.17" (436mm) of precipitation. 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
January through December are months with snowfall in Mount Rainier National Park. The month with the most snowfall is December, when snow falls for 19 days and typically aggregates up to 124.02" (3150mm) of snow.Daylight
The month with the shortest days in Mount Rainier National Park is December, with an average of 8h and 36min of daylight.On the first day of December in Mount Rainier National Park, Washington, sunrise is at 7:32 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:28 pm PST.
Frequently asked questions
What month is the coldest in Mount Rainier National Park?
In Mount Rainier National Park, December registers the lowest temperatures, averaging 33.8°F (1°C) at the peak and 21°F (-6.1°C) at the lowest.
How cold is December in Mount Rainier National Park?
The high-temperature in Mount Rainier National Park, Washington, during December is 33.8°F (1°C) and the low-temperature is 21°F (-6.1°C).
How many days does it rain in December in Mount Rainier National Park?
In December, in Mount Rainier National Park, the rain falls for 21.1 days. Throughout December, 17.17" (436mm) of precipitation is accumulated.
When does it snow the most in Mount Rainier National Park?
December is the month with the most snowfall in Mount Rainier National Park, Washington. Snow falls for 19 days and accumulates 124.02" (3150mm) of snow.
How many days does it snow in December in Mount Rainier National Park?
In Mount Rainier National Park, in December, during 19 snowfall days, 124.02" (3150mm) of snow is typically accumulated.
What is the month with the shortest days in Mount Rainier National Park?
With an average of 8h and 36min of daylight, December has the shortest days of the year.
What is the average length of the day in December in Mount Rainier National Park?
In December, the average day length is 8h and 36min.
What time are sunrise and sunset in December in Mount Rainier National Park?
In December, on the first day of the month, sunrise is at 7:32 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:28 pm PST.
Average temperature in December
Mount Rainier National Park, WA
- Average high temperature in December: 33.8°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 December: 21.1°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 December
Mount Rainier National Park, WA
- Average rainfall in December: 17.2"
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 December
Mount Rainier National Park, WA
- Average rainfall days in December: 21.1 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 December
Mount Rainier National Park, WA
- Average snowfall in December: 99.9"
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 December
Mount Rainier National Park, WA
- Average snowfall days in December: 19 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 December
Mount Rainier National Park, WA
- Average daylight in December: 8h and 4min
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
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
