January weather forecast
Clarkston, WA

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Weather in January

January, like December, in Clarkston, Washington, is an icy winter month, with an average temperature ranging between min 27°F (-2.8°C) and max 37.8°F (3.2°C).

Temperature

Clarkston's January reports an average high-temperature of a still cold 37.8°F (3.2°C), exhibiting a minor difference from December. During the month of January, Clarkston's nighttime temperature lowers to an average of 27°F (-2.8°C).

Humidity

With an average relative humidity of 84%, January is the most humid month in Clarkston.

Rainfall

In January, the rain falls for 11.3 days. Throughout January, 0.87" (22mm) of precipitation is accumulated. In Clarkston, during the entire year, the rain falls for 116.2 days and collects up to 8.23" (209mm) of precipitation.

Snowfall

Months with snowfall are January through March, October through December. In January, in Clarkston, it is snowing for 2.9 days. Throughout January, 0.87" (22mm) of snow is accumulated. Throughout the year, there are 14.8 snowfall days, and 4.29" (109mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 5min.
On the first day of January in Clarkston, sunrise is at 7:31 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:50 pm PST.

Sunshine

The month with the least sunshine in Clarkston is January, with an average of 5h of sunshine.

UV index

The months with the lowest UV index in Clarkston are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 2 during January translates into these guidelines:
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. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January in Clarkston?

In January, the average high-temperature and low-temperature in Clarkston are 37.8°F (3.2°C) and 27°F (-2.8°C) respectively.

What is the most humid month in Clarkston?

January is the most humid month in Clarkston, with an average relative humidity of 84%.

What is the average humidity in January in Clarkston?

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

How much does it rain in Clarkston in January?

In Clarkston, Washington, in January, it is raining for 11.3 days, with typically 0.87" (22mm) of accumulated precipitation.

How many days does it snow in January in Clarkston?

In Clarkston, Washington, in January, during 2.9 snowfall days, 0.87" (22mm) of snow is typically accumulated.

How many hours of daylight does Clarkston have in January?

The average day length in January in Clarkston is 9h and 5min.

When are sunrise and sunset in January in Clarkston?

On the first day of January in Clarkston, Washington, sunrise is at 7:31 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:50 pm PST.

What is the month with the least sunshine in Clarkston?

January has the least sunshine of the year, with an average of 5h of sunshine.

How many hours of sunshine does Clarkston have in January?

In January, the average sunshine duration is 5h.

When is the lowest UV index in Clarkston?

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

What is the UV index intensity in January in Clarkston?

The average daily maximum UV index in January in Clarkston is 2. A UV Index reading of 2, and below, represents a low health risk 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
Clarkston, WA

Average temperature in January - Clarkston, WA
  • Average high temperature in January: 37.8°F

The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in January: 27°F

The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).

Average pressure in January
Clarkston, WA

Average pressure in January - Clarkston, WA
  • Average pressure in January: 30.2"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in January
Clarkston, WA

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

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in January
Clarkston, WA

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

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).

Average rainfall in January
Clarkston, WA

Average rainfall in January - Clarkston, WA
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is August (0.24").

Average rainfall days in January
Clarkston, WA

Average rainfall days in January - Clarkston, WA
  • Average rainfall days in January: 11.3 days

The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is August (4.5 days).

Average snowfall in January
Clarkston, WA

Average snowfall in January - Clarkston, WA
  • Average snowfall in January: 0.87"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in January
Clarkston, WA

Average snowfall days in January - Clarkston, WA
  • Average snowfall days in January: 2.9 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 and September (0 days).

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

Average daylight in January / Average sunshine in January - Clarkston, WA
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in January
Clarkston, WA

Average sunshine days in January - Clarkston, WA
  • Average sunshine days in January: 16.6 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.8 days).

Average UV index in January
Clarkston, WA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Clarkston, WA

Average cloud cover in January - Clarkston, WA
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in January
Clarkston, WA

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

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

Clarkston, Washington, USA

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