January weather forecast
Snohomish, WA

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Weather in January

January in Snohomish, Washington, is a frosty winter month, with an average temperature varying between 44.1°F (6.7°C) and 34.7°F (1.5°C).

Temperature

At the onset of January, Snohomish records an average high-temperature of a chilly 44.1°F (6.7°C), showing little deviation from the preceding month. In Snohomish, an average temperature of 34.7°F (1.5°C) is noted during January nights.

Humidity

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

Rainfall

In Snohomish, in January, during 15 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 140.3 rainfall days, and 15.12" (384mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Snohomish, during January, snow falls for 1.7 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, there are 7.7 snowfall days, and 3.5" (89mm) of snow is accumulated.

Daylight

The average length of the day in January in Snohomish is 8h and 55min.
On the first day of the month, sunrise is at 7:57 am and sunset at 4:26 pm. On the last day of January, in Snohomish, sunrise is at 7:37 am and sunset at 5:06 pm PST.

Sunshine

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

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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: In January, the maximum UV index of 2 suggests this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Boost your sun resistance with garments that are densely woven yet spacious. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold does it get in Snohomish in January?

January temperatures in Snohomish vary between a high-temperature of 44.1°F (6.7°C) and a low-temperature of 34.7°F (1.5°C).

What are the most humid months in Snohomish?

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

What is the average humidity in January in Snohomish?

In January, the average relative humidity in Snohomish is 85%.

How much does it rain in Snohomish in January?

In Snohomish, Washington, in January, it is raining for 15 days, with typically 2.05" (52mm) of accumulated precipitation.

How much does it snow in Snohomish in January?

In January, it is snowing for 1.7 days. Throughout January, 0.91" (23mm) of snow is accumulated.

What is the average length of the day in January in Snohomish?

In Snohomish, the average day length in January is 8h and 55min.

When are sunrise and sunset in January in Snohomish?

In January, on the first day of the month, sunrise is at 7:57 am and sunset at 4:26 pm. On the last day of the month, in Snohomish, Washington, sunrise is at 7:37 am and sunset at 5:06 pm PST.

How long on average sun shines in January in Snohomish?

The average sunshine duration in January is 4.2h.

What is the month with the lowest UV index in Snohomish?

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

What is the UV index intensity in January in Snohomish?

In January, the average daily maximum UV index in Snohomish, Washington, is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
Snohomish, WA

Average temperature in January - Snohomish, WA
  • Average high temperature in January: 44.1°F

The warmest month (with the highest average high temperature) is August (74.7°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in January: 34.7°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).

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Average pressure in January
Snohomish, WA

Average pressure in January - Snohomish, WA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in January
Snohomish, WA

Average wind speed in January - Snohomish, WA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

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Average humidity in January
Snohomish, WA

Average humidity in January - Snohomish, 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 (72%).

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Average rainfall in January
Snohomish, WA

Average rainfall in January - Snohomish, WA
  • Average rainfall in January: 2.05"

The wettest month (with the highest rainfall) is December (2.17").
The driest month (with the least rainfall) is August (0.28").

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Average rainfall days in January
Snohomish, WA

Average rainfall days in January - Snohomish, WA
  • Average rainfall days in January: 15 days

The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (4.8 days).

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Average snowfall in January
Snohomish, WA

Average snowfall in January - Snohomish, WA
  • Average snowfall in January: 0.91"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Snohomish, WA

Average snowfall days in January - Snohomish, WA
  • Average snowfall days in January: 1.7 days

The month with the highest number of snowfall days is February (2.7 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
Snohomish, WA

Average daylight in January / Average sunshine in January - Snohomish, 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).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

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Average sunshine days in January
Snohomish, WA

Average sunshine days in January - Snohomish, WA
  • Average sunshine days in January: 13.9 days

The month with the most sunshine days is August (24 days).
The month with the least sunshine days is April (12.3 days).

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Average UV index in January
Snohomish, WA

Average UV index in January - Snohomish, 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, November and December (UV index 2).

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Average cloud cover in January
Snohomish, WA

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

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

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Average visibility in January
Snohomish, WA

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

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

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Snohomish, Washington, USA

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