January weather forecast
Olympic National Park, WA

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The incredibly scenic Green Moss stream flowing downstream in the Olympic National Park, Washington
The incredibly scenic Green Moss stream flowing downstream in the Olympic National Park, Washington

Weather in January

January in Olympic National Park presents residents and visitors with an inviting winter scene. The onset of the year brings in the chilled atmosphere as the landscape decorates itself with an average of 7.1" (180mm) of snowfall. Compared to the preceding month of December, January exhibits a slightly increased maximum average temperature and begins to welcome the increased daylight hours that continue into the year. With January being the starting point of the new year, it offers a perspective of the coldest phase gradually transcending into warmer days ahead, leading to an anticipation of the approaching spring season.

Temperature

January is Olympic National Park's coldest month, registering average high temperatures of 40.6°F (4.8°C) and lows of 31.1°F (-0.5°C).

Rainfall

In January, in Olympic National Park, the rain falls for 17 days. Throughout January, 9.02" (229mm) of precipitation is accumulated. Throughout the year, in Olympic National Park, there are 149 rainfall days, and 56.3" (1430mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Olympic National Park. January is the month with the most snowfall, with 7.09" (180mm) of accumulated snow.

Daylight

In January, the average length of the day is 8h and 55min.
On the first day of the month, sunrise is at 8:03 am and sunset at 4:31 pm. On the last day of January, in Olympic National Park, Washington, sunrise is at 7:42 am and sunset at 5:11 pm PST.
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Frequently asked questions

What is the coldest month in Olympic National Park?

With its average high temperature of 40.6°F (4.8°C) and a low of 31.1°F (-0.5°C), January is regarded as the coldest month in Olympic National Park.

Is it cold in Olympic National Park during January?

The high-temperature, in January, in Olympic National Park, is 40.6°F (4.8°C), while the low-temperature averages to 31.1°F (-0.5°C).

How much does it rain in Olympic National Park in January?

In Olympic National Park, in January, during 17 rainfall days, 9.02" (229mm) of precipitation is typically accumulated.

What is the snowiest month in Olympic National Park?

January is the month with the most snowfall in Olympic National Park, Washington, with 7.09" (180mm) of accumulated snow.

How much does it snow in Olympic National Park in January?

During January, Olympic National Park regularly aggregates up to 7.09" (180mm) of snow.

What is the average length of the day in January in Olympic National Park?

In Olympic National Park, Washington, the average day length in January is 8h and 55min.

When is the sunrise / sunset in January in Olympic National Park?

In January, on the first day of the month, sunrise is at 8:03 am and sunset at 4:31 pm. On the last day of the month, in Olympic National Park, Washington, sunrise is at 7:42 am and sunset at 5:11 pm PST.

Average temperature in January
Olympic National Park, WA

Average temperature in January - Olympic National Park, WA
  • Average high temperature in January: 40.7°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 January: 31.1°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).

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Average rainfall in January
Olympic National Park, WA

Average rainfall in January - Olympic National Park, WA
  • Average rainfall in January: 9"

The wettest month (with the highest rainfall) is December (9.9").
The driest month (with the least rainfall) is July (0.8").

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Average rainfall days in January
Olympic National Park, WA

Average rainfall days in January - Olympic National Park, WA
  • Average rainfall days in January: 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).

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Average snowfall in January
Olympic National Park, WA

Average snowfall in January - Olympic National Park, WA
  • Average snowfall in January: 7.1"

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").

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Average daylight in January
Olympic National Park, WA

Average daylight in January - Olympic National Park, WA
  • Average daylight in January: 8h and 5min

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).

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Olympic National Park, Washington, USA

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