January weather forecast
Oso, WA

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Weather in January

January is a frosty winter month in Oso, Washington, with an average temperature ranging between min 34.7°F (1.5°C) and max 43.3°F (6.3°C).

Temperature

The dawn of January sees an average high-temperature of a frosty 43.3°F (6.3°C), subtly contrasting with December's 41.7°F (5.4°C). Oso's nocturnal average in January closely mirrors its daytime temperatures, settling at an icy 34.7°F (1.5°C).

Humidity

January, February, November and December, with an average relative humidity of 85%, are the most humid months.

Rainfall

In Oso, during January, the rain falls for 18.1 days and regularly aggregates up to 4.69" (119mm) of precipitation. In Oso, during the entire year, the rain falls for 188.6 days and collects up to 34.92" (887mm) of precipitation.

Snowfall

Months with snowfall in Oso are January through April, November and December. In Oso, during January, snow falls for 2.3 days and regularly aggregates up to 2.28" (58mm) of snow. Throughout the year, in Oso, there are 11.6 snowfall days, and 9.61" (244mm) of snow is accumulated.

Daylight

In January, the average length of the day in Oso is 8h and 53min.
On the first day of January, sunrise is at 7:58 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:04 pm PST.

Sunshine

In Oso, the average sunshine in January is 4.2h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

Is it cold in Oso during January?

During January, Oso experiences an average high-temperature of 43.3°F (6.3°C) and a low-temperature of 34.7°F (1.5°C).

What are the most humid months in Oso?

The months with the highest humidity in Oso are January, February, November and December, with an average relative humidity of 85%.

What is the average humidity in January in Oso?

In January, the average relative humidity is 85%.

How many days does it rain in January in Oso?

In Oso, during January, the rain falls for 18.1 days and regularly aggregates up to 4.69" (119mm) of precipitation.

How many days does it snow in January in Oso?

In Oso, Washington, in January, during 2.3 snowfall days, 2.28" (58mm) of snow is typically accumulated.

How many hours of daylight does Oso have in January?

The average day length in January in Oso is 8h and 53min.

When are sunrise and sunset in January in Oso?

In January, on the first day of the month, sunrise is at 7:58 am and sunset at 4:23 pm. On the last day of the month, in Oso, sunrise is at 7:37 am and sunset at 5:04 pm PST.

How many hours of sunshine does Oso have in January?

In Oso, Washington, the average sunshine duration in January is 4.2h.

What are the months with the lowest UV index in Oso?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Oso, Washington.

How high is the UV index in January in Oso?

The average daily maximum UV index in January in Oso, Washington, is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Oso, WA

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

The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (41.7°F).

  • Average low temperature in January: 34.7°F

The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is February (33.8°F).

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Average pressure in January
Oso, WA

Average pressure in January - Oso, WA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in January
Oso, WA

Average wind speed in January - Oso, WA
  • Average wind speed in January: 5.6mph

The windiest months (with the highest average wind speed) are January and November (5.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in January
Oso, WA

Average humidity in January - Oso, WA
  • Average humidity in January: 85%

The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in January
Oso, WA

Average rainfall in January - Oso, WA
  • Average rainfall in January: 4.69"

The wettest month (with the highest rainfall) is November (4.92").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in January
Oso, WA

Average rainfall days in January - Oso, WA
  • Average rainfall days in January: 18.1 days

The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.9 days).

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Average snowfall in January
Oso, WA

Average snowfall in January - Oso, WA
  • Average snowfall in January: 2.28"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Oso, WA

Average snowfall days in January - Oso, WA
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Oso, WA

Average daylight in January / Average sunshine in January - Oso, 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 24min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

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Average sunshine days in January
Oso, WA

Average sunshine days in January - Oso, WA
  • Average sunshine days in January: 10.4 days

The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (8.1 days).

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Average UV index in January
Oso, WA

Average UV index in January - Oso, WA
  • Average UV index in January: 2

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

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Average cloud cover in January
Oso, WA

Average cloud cover in January - Oso, WA
  • Average cloud cover in January: 56

The month with the most cloud cover is December (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 26).

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Average visibility in January
Oso, WA

Average visibility in January - Oso, WA
  • Average visibility in January: 5mi

The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).

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Oso, Washington, USA

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