January weather forecast
Maple Valley, WA

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Weather in January

January, like December, in Maple Valley, Washington, is another cold winter month, with an average temperature varying between 42.4°F (5.8°C) and 32.7°F (0.4°C).

Temperature

With January's advent, Maple Valley sees an average high-temperature of a still icy 42.4°F (5.8°C), subtly shifted from December's 40.8°F (4.9°C). Maple Valley records an average temperature drop to a still cold 32.7°F (0.4°C) in January.

Humidity

January and February, with an average relative humidity of 86%, are the most humid months.

Rainfall

In Maple Valley, in January, it is raining for 18.2 days, with typically 5.31" (135mm) of accumulated precipitation. Throughout the year, there are 182.4 rainfall days, and 36.77" (934mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In January, it is snowing for 3.3 days. Throughout January, 2.83" (72mm) of snow is accumulated. Throughout the year, in Maple Valley, there are 19.7 snowfall days, and 11.5" (292mm) of snow is accumulated.

Daylight

In January, the average length of the day in Maple Valley is 8h and 59min.
On the first day of the month, sunrise is at 7:55 am and sunset at 4:28 pm. On the last day of January, in Maple Valley, sunrise is at 7:35 am and sunset at 5:07 pm PST.

Sunshine

The months with the least sunshine in Maple Valley, Washington, are January and December, with an average of 4.1h of sunshine.

UV index

In January, the average daily maximum UV index in Maple Valley is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
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. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

How cold is January in Maple Valley?

Maple Valley in January has an average high-temperature of 42.4°F (5.8°C) and an average low-temperature of 32.7°F (0.4°C).

What are the most humid months in Maple Valley?

The months with the highest humidity in Maple Valley are January and February, with an average relative humidity of 86%.

What is the average humidity in January in Maple Valley?

In Maple Valley, the average relative humidity in January is 86%.

How much does it rain in Maple Valley in January?

In January, the rain falls for 18.2 days. Throughout January, 5.31" (135mm) of precipitation is accumulated.

How many days does it snow in January in Maple Valley?

In Maple Valley, Washington, in January, during 3.3 snowfall days, 2.83" (72mm) of snow is typically accumulated.

How many hours of daylight does Maple Valley have in January?

In January, the average day length in Maple Valley is 8h and 59min.

What time are sunrise and sunset in January in Maple Valley?

In January, on the first day of the month, sunrise is at 7:55 am and sunset at 4:28 pm. On the last day of the month, in Maple Valley, Washington, sunrise is at 7:35 am and sunset at 5:07 pm PST.

What is the month with the least sunshine in Maple Valley?

The months with the least sunshine are January and December, with an average of 4.1h of sunshine.

How many hours of sunshine does Maple Valley have in January?

In January, the average sunshine duration in Maple Valley is 4.1h.

How high is the UV index in January in Maple Valley?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Maple Valley, WA

Average temperature in January - Maple Valley, WA
  • Average high temperature in January: 42.4°F

The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (40.8°F).

  • Average low temperature in January: 32.7°F

The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is February (31.6°F).

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Average pressure in January
Maple Valley, WA

Average pressure in January - Maple Valley, WA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30"Hg).

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Average wind speed in January
Maple Valley, WA

Average wind speed in January - Maple Valley, WA
  • Average wind speed in January: 5.2mph

The windiest month (with the highest average wind speed) is January (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

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Average humidity in January
Maple Valley, WA

Average humidity in January - Maple Valley, WA
  • Average humidity in January: 86%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in January
Maple Valley, WA

Average rainfall in January - Maple Valley, WA
  • Average rainfall in January: 5.31"

The wettest month (with the highest rainfall) is December (5.43").
The driest month (with the least rainfall) is July (0.59").

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Average rainfall days in January
Maple Valley, WA

Average rainfall days in January - Maple Valley, WA
  • Average rainfall days in January: 18.2 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.7 days).

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Average snowfall in January
Maple Valley, WA

Average snowfall in January - Maple Valley, WA
  • Average snowfall in January: 2.83"

The month with the highest snowfall is February (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Maple Valley, WA

Average snowfall days in January - Maple Valley, WA
  • Average snowfall days in January: 3.3 days

The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).

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Average daylight in January /
Average sunshine in January
Maple Valley, WA

Average daylight in January / Average sunshine in January - Maple Valley, WA
  • Average daylight in January: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 54min).
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 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).

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Average sunshine days in January
Maple Valley, WA

Average sunshine days in January - Maple Valley, WA
  • Average sunshine days in January: 10.5 days

The month with the most sunshine days is August (22 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in January
Maple Valley, WA

Average UV index in January - Maple Valley, WA
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in January
Maple Valley, WA

Average cloud cover in January - Maple Valley, WA
  • Average cloud cover in January: 57

The months with the most cloud cover are January, February, March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in January
Maple Valley, WA

Average visibility in January - Maple Valley, WA
  • Average visibility in January: 4mi

The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Maple Valley, Washington, USA

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