January weather forecast
Birch Bay, WA

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Weather in January

January in Birch Bay, Washington, is a chilly winter month, with an average temperature varying between 36.3°F (2.4°C) and 43.3°F (6.3°C).

Temperature

Birch Bay records an average high-temperature of a chilly 43.3°F (6.3°C) in January, maintaining a close correlation with December's 41.9°F (5.5°C). Birch Bay's January nights observe a minor shift from the daytime temperatures, resulting in an average dip to a wintry 36.3°F (2.4°C).

Humidity

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

Rainfall

In Birch Bay, during January, the rain falls for 18.4 days and regularly aggregates up to 6.26" (159mm) of precipitation. Throughout the year, there are 176.1 rainfall days, and 43.78" (1112mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Birch Bay, Washington, are January through April, November and December. In January, it is snowing for 2.3 days. Throughout January, 1.89" (48mm) of snow is 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 Birch Bay, in January, the average water temperature is 45°F (7.2°C).
Note: It is risky to swim in 45°F (7.2°C). Temperatures beneath 50°F (10°C) induce rapid cold shock and hyperventilation.

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

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Birch Bay. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

How cold is January in Birch Bay?

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

What is the most humid month in Birch Bay?

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

What is the average humidity in January in Birch Bay?

In January, the average relative humidity is 83%.

How much does it rain in Birch Bay in January?

In January, the rain falls for 18.4 days. Throughout January, 6.26" (159mm) of precipitation is accumulated.

How many days does it snow in January in Birch Bay?

In Birch Bay, Washington, in January, during 2.3 snowfall days, 1.89" (48mm) of snow is typically accumulated.

What is the ocean temperature in January in Birch Bay?

In Birch Bay, the average seawater temperature in January is 45°F (7.2°C). Swimming in 45°F (7.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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.

When are sunrise and sunset in January in Birch Bay?

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 is the month with the least sunshine in Birch Bay?

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?

The average sunshine duration in January is 3.9h.

When is the lowest UV index in Birch Bay?

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

What is the UV index reading in January in Birch Bay?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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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).

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Birch Bay, Washington, USA

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