January weather forecast
Littlerock, WA

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Weather in January

January, the same as December, in Littlerock, Washington, is another chilly winter month, with an average temperature fluctuating between 44.6°F (7°C) and 34.3°F (1.3°C).

Temperature

Littlerock marks the arrival of January with an average high-temperature of a still chilly 44.6°F (7°C), hardly different from December's 43°F (6.1°C). During January, the average low-temperature is recorded at a cold 34.3°F (1.3°C).

Humidity

January, November and December, with an average relative humidity of 89%, are the most humid months.

Rainfall

In Littlerock, in January, during 18.9 rainfall days, 5.71" (145mm) of precipitation is typically accumulated. Throughout the year, there are 177.4 rainfall days, and 37.05" (941mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Littlerock, Washington, in January, snow falls for 1.9 days, with typically accumulated 1.38" (35mm) of snow. In Littlerock, during the entire year, snow falls for 8.7 days and aggregates up to 5.31" (135mm) of snow.

Daylight

In January, the average length of the day in Littlerock, Washington, is 9h and 2min.
On the first day of the month, sunrise is at 7:57 am and sunset at 4:33 pm. On the last day of January, sunrise is at 7:37 am and sunset at 5:13 pm PST.

Sunshine

In January, the average sunshine is 3.5h.

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 minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

Is January cold?

During January, Littlerock experiences an average high-temperature of 44.6°F (7°C) and a low-temperature of 34.3°F (1.3°C).

What are the most humid months?

The months with the highest humidity are January, November and December, with an average relative humidity of 89%.

What is the average humidity in January in Littlerock?

The average relative humidity in January is 89%.

How much does it rain in January?

In Littlerock, during January, the rain falls for 18.9 days and regularly aggregates up to 5.71" (145mm) of precipitation.

How much does it snow in January?

In Littlerock, in January, during 1.9 snowfall days, 1.38" (35mm) of snow is typically accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 2min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:57 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:13 pm PST.

How many hours of sunshine does Littlerock have in January?

In Littlerock, the average sunshine duration in January is 3.5h.

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.

What is the UV index reading in January?

In Littlerock, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average max. wind speed
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
Littlerock, WA

Average temperature in January - Littlerock, WA
  • Average high temperature in January: 44.6°F

The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).

  • Average low temperature in January: 34.3°F

The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

Average pressure in January
Littlerock, WA

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

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in January
Littlerock, WA

Average wind speed in January - Littlerock, WA
  • Average wind speed in January: 4.5mph

The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).

Average humidity in January
Littlerock, WA

Average humidity in January - Littlerock, WA
  • Average humidity in January: 89%

The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).

Average rainfall in January
Littlerock, WA

Average rainfall in January - Littlerock, WA
  • Average rainfall in January: 5.71"

The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in January
Littlerock, WA

Average rainfall days in January - Littlerock, WA
  • Average rainfall days in January: 18.9 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).

Average snowfall in January
Littlerock, WA

Average snowfall in January - Littlerock, WA
  • Average snowfall in January: 1.38"

The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Littlerock, WA

Average snowfall days in January - Littlerock, WA
  • Average snowfall days in January: 1.9 days

The month with the highest number of snowfall days is February (3.3 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
Littlerock, WA

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in January
Littlerock, WA

Average sunshine days in January - Littlerock, WA
  • Average sunshine days in January: 9.8 days

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in January
Littlerock, WA

Average UV index in January - Littlerock, 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
Littlerock, WA

Average cloud cover in January - Littlerock, WA
  • Average cloud cover in January: 65

The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in January
Littlerock, WA

Average visibility in January - Littlerock, WA
  • Average visibility in January: 4mi

The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).

Littlerock, Washington, USA

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