The incredibly scenic Green Moss stream flowing downstream in the Olympic National Park, Washington
Weather in December
December reigns in full winter mode at Olympic National Park. The month brings back snow with an average of 3.1" (79mm) after seeing none from May to November, coupled with the highest average rainfall for the year, incoming at 9.9" (251mm). Standing with January, December infuses the crisp energy of winter into the landscape, setting the stage for another cycle of changing seasons. The month offers a frosted marvel, transforming the national park into a serene vantage, signalling the end of the year and the beginning of a new one.
On the first day of December in Olympic National Park, sunrise is at 7:43 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:31 pm PST.
[Resources]Temperature
Olympic National Park experiences a recorded average high-temperature of a cold 42.1°F (5.6°C) in December, closely aligned with November's 46.4°F (8°C). The average low-temperature of 32.7°F (0.4°C) is witnessed in Olympic National Park during December.Rainfall
December is the month with the most rainfall in Olympic National Park. Rain falls for 17 days and accumulates 9.88" (251mm) of precipitation.Snowfall
Months with snowfall in Olympic National Park are January through March, November and December. Throughout December, 3.11" (79mm) of snow is accumulated. In Olympic National Park, during the entire year, snow aggregates up to 14.49" (368mm).Daylight
The month with the shortest days in Olympic National Park is December, with an average of 8h and 30min of daylight.On the first day of December in Olympic National Park, sunrise is at 7:43 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:31 pm PST.
Frequently asked questions
Is it cold in Olympic National Park during December?
The high-temperature, in December, in Olympic National Park, records 42.1°F (5.6°C), while the low-temperature is 32.7°F (0.4°C).
What is the rainiest month in Olympic National Park?
December is the month with the most rainfall. Rain falls for 17 days and accumulates 9.88" (251mm) of precipitation.
How many days does it rain in December in Olympic National Park?
In Olympic National Park, during December, the rain falls for 17 days and regularly aggregates up to 9.88" (251mm) of precipitation.
How much does it snow in Olympic National Park in December?
Throughout December, 3.11" (79mm) of snow is accumulated.
What is the month with the shortest days in Olympic National Park?
The month with the shortest days in Olympic National Park is December, with an average of 8h and 30min of daylight.
How many hours of daylight does Olympic National Park have in December?
The average day length in December in Olympic National Park, Washington, is 8h and 28min.
What time are sunrise and sunset in December in Olympic National Park?
In December, on the first day of the month, sunrise is at 7:43 am and sunset at 4:23 pm. On the last day of the month, in Olympic National Park, sunrise is at 8:03 am and sunset at 4:31 pm PST.
Average temperature in December
Olympic National Park, WA
- Average high temperature in December: 42°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is January (40.7°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average rainfall in December
Olympic National Park, WA
- Average rainfall in December: 9.9"
The wettest month (with the highest rainfall) is December (9.9").
The driest month (with the least rainfall) is July (0.8").
Average rainfall days in December
Olympic National Park, WA
- Average rainfall days in December: 17 days
The month with the highest number of rainy days is November (18 days).
The month with the least rainy days is July (5 days).
Average snowfall in December
Olympic National Park, WA
- Average snowfall in December: 3.1"
The month with the highest snowfall is January (7.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average daylight in December
Olympic National Park, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
Olympic National Park, Washington, USA
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