January weather forecast
Mill Creek, WA

englishespañol中文
Share

Weather in January

January in Mill Creek, Washington, is a frosty winter month, with an average temperature ranging between min 36.7°F (2.6°C) and max 45°F (7.2°C).

Temperature

The initiation of January records an average high-temperature of a chilly 45°F (7.2°C), displaying a near consistency with the previous month. Mill Creek maintains an average of approximately a cold 36.7°F (2.6°C) during January nights, with only a minimal decrease from the daytime temperature.

Humidity

In January, the average relative humidity in Mill Creek is 83%.

Rainfall

In January, in Mill Creek, the rain falls for 18 days. Throughout January, 3.43" (87mm) of precipitation is accumulated. In Mill Creek, during the entire year, the rain falls for 173.1 days and collects up to 26.02" (661mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Mill Creek. In Mill Creek, Washington, in January, during 2.7 snowfall days, 1.73" (44mm) of snow is typically accumulated. Throughout the year, in Mill Creek, there are 16.3 snowfall days, and 10.08" (256mm) of snow is accumulated.

Daylight

In January, the average length of the day is 8h and 56min.
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, sunrise is at 7:37 am and sunset at 5:07 pm PST.

Sunshine

The month with the least sunshine in Mill Creek is January, with an average of 4.4h of sunshine.

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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
[Resources]

Frequently asked questions

What are January temperatures in Mill Creek?

Mill Creek in January has an average high-temperature of 45°F (7.2°C) and an average low-temperature of 36.7°F (2.6°C).

What is the average humidity in January in Mill Creek?

In Mill Creek, the average relative humidity in January is 83%.

How many days does it rain in January in Mill Creek?

In January, in Mill Creek, the rain falls for 18 days. Throughout January, 3.43" (87mm) of precipitation is accumulated.

How much does it snow in Mill Creek in January?

In January, in Mill Creek, Washington, it is snowing for 2.7 days. Throughout January, 1.73" (44mm) of snow is accumulated.

How many hours of daylight does Mill Creek have in January?

In Mill Creek, the average day length in January is 8h and 56min.

When is the sunrise / sunset in January in Mill Creek?

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 Mill Creek, sunrise is at 7:37 am and sunset at 5:07 pm PST.

What is the month with the least sunshine in Mill Creek?

January has the least sunshine of the year in Mill Creek, with an average of 4.4h of sunshine.

How long on average sun shines in January in Mill Creek?

In January, the average sunshine duration is 4.4h.

What is the month with the lowest UV index in Mill Creek?

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

How high is the UV index in January in Mill Creek?

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

Average temperature in January - Mill Creek, WA
  • Average high temperature in January: 45°F

The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in January: 36.7°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.4°F).

[Resources]

Average pressure in January
Mill Creek, WA

Average pressure in January - Mill Creek, 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).

[Resources]

Average wind speed in January
Mill Creek, WA

Average wind speed in January - Mill Creek, WA
  • Average wind speed in January: 6mph

The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

[Resources]

Average humidity in January
Mill Creek, WA

Average humidity in January - Mill Creek, WA
  • Average humidity in January: 83%

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

[Resources]

Average rainfall in January
Mill Creek, WA

Average rainfall in January - Mill Creek, WA
  • Average rainfall in January: 3.43"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is July (0.43").

[Resources]

Average rainfall days in January
Mill Creek, WA

Average rainfall days in January - Mill Creek, WA
  • Average rainfall days in January: 18 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.3 days).

[Resources]

Average snowfall in January
Mill Creek, WA

Average snowfall in January - Mill Creek, WA
  • Average snowfall in January: 1.73"

The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in January
Mill Creek, WA

Average snowfall days in January - Mill Creek, WA
  • Average snowfall days in January: 2.7 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in January /
Average sunshine in January
Mill Creek, WA

Average daylight in January / Average sunshine in January - Mill Creek, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

[Resources]

Average sunshine days in January
Mill Creek, WA

Average sunshine days in January - Mill Creek, WA
  • Average sunshine days in January: 10.6 days

The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is November (9.1 days).

[Resources]

Average UV index in January
Mill Creek, WA

Average UV index in January - Mill Creek, 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).

[Resources]

Average cloud cover in January
Mill Creek, WA

Average cloud cover in January - Mill Creek, WA
  • Average cloud cover in January: 53

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 25).

[Resources]

Average visibility in January
Mill Creek, WA

Average visibility in January - Mill Creek, 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).

[Resources]

Mill Creek, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location