January weather forecast
Birch Bay, WA

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Weather in January

January in Birch Bay, Washington, is a frosty winter month, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 36.3°F (2.4°C).

Temperature

Birch Bay's January showcases an average high-temperature of a chilly 43.3°F (6.3°C), hardly distinct from December's 41.9°F (5.5°C). Nights in January cool down in Birch Bay, indicating a minor disparity from daytime highs with an average low-temperature of 36.3°F (2.4°C).

Humidity

January and November, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Birch Bay, in January, it is raining for 18.4 days, with typically 6.26" (159mm) of accumulated precipitation. Throughout the year, there are 176.1 rainfall days, and 43.78" (1112mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Birch Bay, in January, during 2.3 snowfall days, 1.89" (48mm) of snow is typically accumulated. In Birch Bay, during the entire year, snow falls for 10.5 days and aggregates up to 6.77" (172mm) of snow.

Ocean temperature

In January, the average ocean temperature is 45°F (7.2°C).
Note: You can swim in 45°F (7.2°C) below 50°F (10°C) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 55.4°F (13°C) without it is tough.

Daylight

The average length of the day in January is 8h and 48min.
On the first day of the month, sunrise is at 8:04 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:42 am and sunset at 5:06 pm PST.

Sunshine

January and December, with an average of 3.9h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, the maximum UV index of 2 transforms into these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January?

An average high-temperature, in January, in Birch Bay, is 43.3°F (6.3°C) and the average low-temperature is 36.3°F (2.4°C).

What are the most humid months?

The months with the highest humidity are January and November, with an average relative humidity of 83%.

What is the average humidity in January?

The average relative humidity in January in Birch Bay is 83%.

How many days does it rain in January?

In Birch Bay, in January, it is raining for 18.4 days, with typically 6.26" (159mm) of accumulated precipitation.

How many days does it snow in January?

In Birch Bay, in January, snow falls for 2.3 days, with typically accumulated 1.89" (48mm) of snow.

What is the ocean temperature in January?

In Birch Bay, the average seawater temperature in January is 45°F (7.2°C). Swimming in 45°F (7.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Birch Bay have in January?

In Birch Bay, Washington, the average day length in January is 8h and 48min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 8:04 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:06 pm PST.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 3.9h of sunshine.

How many hours of sunshine does Birch Bay have in January?

In Birch Bay, the average sunshine duration in January is 3.9h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in January?

In Birch Bay, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Birch Bay, WA

Average temperature in January - Birch Bay, WA
  • Average high temperature in January: 43.3°F

The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).

  • Average low temperature in January: 36.3°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).

Average pressure in January
Birch Bay, WA

Average pressure in January - Birch Bay, WA
  • Average pressure in January: 30.07"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

Average wind speed in January
Birch Bay, WA

Average wind speed in January - Birch Bay, WA
  • Average wind speed in January: 6.2mph

The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in January
Birch Bay, WA

Average humidity in January - Birch Bay, WA
  • Average humidity in January: 83%

The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).

Average rainfall in January
Birch Bay, WA

Average rainfall in January - Birch Bay, WA
  • Average rainfall in January: 6.26"

The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").

Average rainfall days in January
Birch Bay, WA

Average rainfall days in January - Birch Bay, WA
  • Average rainfall days in January: 18.4 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in January
Birch Bay, WA

Average snowfall in January - Birch Bay, WA
  • Average snowfall in January: 1.89"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Birch Bay, WA

Average snowfall days in January - Birch Bay, WA
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in January
Birch Bay, WA

Average sea temperature in January - Birch Bay, WA
  • Average sea temperature in January: 44.9°F

The best months for swimming (with the highest average sea temperature) are August and September (52.6°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

Average daylight in January /
Average sunshine in January
Birch Bay, WA

Average daylight in January / Average sunshine in January - Birch Bay, WA
  • Average daylight in January: 8h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in January: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

Average sunshine days in January
Birch Bay, WA

Average sunshine days in January - Birch Bay, WA
  • Average sunshine days in January: 10.6 days

The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).

Average UV index in January
Birch Bay, WA

Average UV index in January - Birch Bay, WA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Birch Bay, WA

Average cloud cover in January - Birch Bay, WA
  • Average cloud cover in January: 58

The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in January
Birch Bay, WA

Average visibility in January - Birch Bay, WA
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Birch Bay, Washington, USA

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