January weather forecast
Lynnwood, WA

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Weather in January

January in Lynnwood does not bring extreme cold, with temperatures steadfastly above freezing, offering comfortable winter days. Snowfall remains marginal with daytime hours often mild and inviting. The month showers the residents with a fair amount of rainfall. Though, compared to other months on the calendar, January steers ahead with an 84% average relative humidity and 3.31" (84mm) average rainfall. Wintry weather conditions are not excessive, making it an easily navigable season.

Temperature

As Lynnwood steps into January, the average high-temperature holds at a still frosty 45.1°F (7.3°C), hinting at a minor fluctuation from the prior month. Lynnwood's average low temperature, barely cooler than the daytime high, steadies at an icy 37°F (2.8°C) during January.

Humidity

January, February and December, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Lynnwood, in January, it is raining for 17.4 days, with typically 3.31" (84mm) of accumulated precipitation. In Lynnwood, during the entire year, the rain falls for 173 days and collects up to 25" (635mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Lynnwood, during January, snow falls for 2.3 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, there are 12.5 snowfall days, and 6.65" (169mm) of snow is accumulated.

Daylight

In Lynnwood, the average length of the day in January is 8h and 56min.
On the first day of January, sunrise is at 7:58 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:07 pm PST.

Sunshine

With an average of 4.5h of sunshine, January has the least sunshine of the year.

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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 2 during January translates into the following guidance:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Boost your sun resistance with garments that are densely woven yet spacious. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are January temperatures?

The average high-temperature, in January, in Lynnwood, is 45.1°F (7.3°C), while the average low-temperature is 37°F (2.8°C).

What is the most humid month?

January, February and December, with an average relative humidity of 84%, are most humid months.

What is the average humidity in January in Lynnwood?

In Lynnwood, the average relative humidity in January is 84%.

How many days does it rain in January?

In January, the rain falls for 17.4 days. Throughout January, 3.31" (84mm) of precipitation is accumulated.

How much does it snow in January?

In Lynnwood, during January, snow falls for 2.3 days and regularly aggregates up to 1.18" (30mm) of snow.

How many hours of daylight does Lynnwood have in January?

The average day length in January is 8h and 56min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:58 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:07 pm PST.

What is the month with the least sunshine?

With an average of 4.5h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

The average sunshine duration in January is 4.5h.

When is 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.

How high is the UV index in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Lynnwood, WA

Average temperature in January - Lynnwood, WA
  • Average high temperature in January: 45.1°F

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is December (43.3°F).

  • Average low temperature in January: 37°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (35.8°F).

Average pressure in January
Lynnwood, WA

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

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in January
Lynnwood, WA

Average wind speed in January - Lynnwood, WA
  • Average wind speed in January: 5.8mph

The windiest month (with the highest average wind speed) is November (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in January
Lynnwood, WA

Average humidity in January - Lynnwood, WA
  • Average humidity in January: 84%

The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is July (72%).

Average rainfall in January
Lynnwood, WA

Average rainfall in January - Lynnwood, WA
  • Average rainfall in January: 3.31"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in January
Lynnwood, WA

Average rainfall days in January - Lynnwood, WA
  • Average rainfall days in January: 17.4 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.8 days).

Average snowfall in January
Lynnwood, WA

Average snowfall in January - Lynnwood, WA
  • Average snowfall in January: 1.18"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Lynnwood, WA

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

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Lynnwood, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in January
Lynnwood, WA

Average sunshine days in January - Lynnwood, WA
  • Average sunshine days in January: 10.5 days

The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is November (9.2 days).

Average UV index in January
Lynnwood, WA

Average UV index in January - Lynnwood, 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
Lynnwood, WA

Average cloud cover in January - Lynnwood, WA
  • Average cloud cover in January: 53

The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in January
Lynnwood, WA

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

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

Lynnwood, Washington, USA

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