Mount Rainier National Park Weather in December
December in Mount Rainier National Park sees daytime temperatures around -6°C (21°F) and lows of -13°C (9°F) at night. Being part of the rainy season, heavy snowfall is a regular part of the day, so pack accordingly.
Rainfall in Mount Rainier National Park in December
As part of the rainy season, Mount Rainier National Park sees around 25 days of rain in December, with an average of 532 mm (21 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Mount Rainier National Park in December
Mount Rainier National Park in December gets highs of -6°C (21°F) during the day and drops to -13°C (9°F) at night. During December, the winter season is in full swing. Expect a distinctly cold feel throughout the day, not just overnight. Nights drop below freezing to -13°C (9°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. Typically, it's the chilliest month of the year. Ensure you're prepared by packing appropriate winter gear.
Sunshine in Mount Rainier National Park in December
With limited sunshine this month, there are about 61 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.December in Mount Rainier National Park has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mount Rainier National Park 's climate page.
Mount Rainier National Park Temperature in December
Min Temperature
-13°C (9°F)
Max Temperature
-6°C (21°F)
Chance of Rain
83%
Precipitation
532 mm (21 in)
Rainy days
25 days
Sunshine
61 hours *
Percentage Sunshine
23% *
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Mount Rainier National Park in December
It's wise to bundle up for freezing conditions in Mount Rainier National Park in December. If you have a winter jacket with good insulation, waterproof winter boots, thermal layers, and warm accessories it's smart to pack them. Hand and foot warmers can be lifesavers, especially during the night. It's going to pour! Pack a good poncho and prepare for very wet conditions. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Mount Rainier National Park in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mount Rainier National Park 's climate page.
See the full Mount Rainier National Park climate overview or explore weather in the United States of America.
