Weather in January
Temperature
A minor adjustment in Mount Rainier National Park's average high-temperature is noted with the start of January, touching a still icy 34.9°F (1.6°C) from December's 33.8°F (1°C). Mount Rainier National Park sees an average low-temperature of 22.5°F (-5.3°C) during January.Rainfall
In January, the rain falls for 21.1 days. Throughout January, 18.23" (463mm) 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
January through December are months with snowfall. In January, it is snowing for 18.5 days. Throughout January, 118.7" (3015mm) of snow is accumulated. In Mount Rainier National Park, during the entire year, snow falls for 121.5 days and aggregates up to 670.91" (17041mm) of snow.Daylight
In January, the average length of the day in Mount Rainier National Park, Washington, is 9h and 2min.On the first day of January, sunrise is at 7:52 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:07 pm PST.
Frequently asked questions
How cold is January in Mount Rainier National Park?
How many days does it rain in January in Mount Rainier National Park?
How much does it snow in Mount Rainier National Park in January?
What is the average length of the day in January in Mount Rainier National Park?
When is the sunrise / sunset in January in Mount Rainier National Park?
Average temperature in January
Mount Rainier National Park, WA
- Average high temperature in January: 34.9°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 January: 22.5°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 January
Mount Rainier National Park, WA
- Average rainfall in January: 18.2"
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 January
Mount Rainier National Park, WA
- Average rainfall days in January: 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 January
Mount Rainier National Park, WA
- Average snowfall in January: 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 January
Mount Rainier National Park, WA
- Average snowfall days in January: 18.5 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 January
Mount Rainier National Park, WA
- Average daylight in January: 9h and 0min
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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