December weather forecast
Littlerock, WA

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Weather in December

December, the first month of the winter in Littlerock, is also a frosty month, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 33.4°F (0.8°C).

Temperature

Littlerock's December weather, with an average high temperature of 43°F (6.1°C) and an average low temperature of 33.4°F (0.8°C), tends to be the coldest of the year.

Humidity

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

Rainfall

The month with the most rainfall is December, when the rain falls for 18.8 days and typically aggregates up to 5.79" (147mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 1.4 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Littlerock, during the entire year, snow falls for 8.7 days and aggregates up to 5.31" (135mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 7:37 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:33 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 3.4h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Frequently asked questions

What part of the year is the coldest?

Littlerock records the coldest temperatures in December, averaging a high of 43°F (6.1°C) and a low of 33.4°F (0.8°C).

How cold does it get in December?

An average high-temperature, in December, in Littlerock, is 43°F (6.1°C) and the average low-temperature is 33.4°F (0.8°C).

What is the most humid month?

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

What is the average humidity in December in Littlerock?

In Littlerock, the average relative humidity in December is 89%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 18.8 days and typically aggregates up to 5.79" (147mm) of precipitation.

How much does it rain in Littlerock in December?

In Littlerock, in December, it is raining for 18.8 days, with typically 5.79" (147mm) of accumulated precipitation.

How many days does it snow in December?

In Littlerock, in December, snow falls for 1.4 days, with typically accumulated 0.31" (8mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Littlerock is December, with an average of 8h and 36min of daylight.

How many hours of daylight does Littlerock have in December?

In Littlerock, the average day length in December is 8h and 36min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:37 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:33 pm PST.

What is the month with the least sunshine in Littlerock?

December has the least sunshine of the year, with an average of 3.4h of sunshine.

How many hours of sunshine does Littlerock have in December?

The average sunshine duration in December is 3.4h.

What is the month with 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 intensity in December?

In Littlerock, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
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 December
Littlerock, WA

Average temperature in December - Littlerock, WA
  • Average high temperature in December: 43°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 December: 33.4°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 December
Littlerock, WA

Average pressure in December - Littlerock, WA
  • Average pressure in December: 30.08"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 December
Littlerock, WA

Average wind speed in December - Littlerock, WA
  • Average wind speed in December: 4.2mph

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 December
Littlerock, WA

Average humidity in December - Littlerock, WA
  • Average humidity in December: 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 December
Littlerock, WA

Average rainfall in December - Littlerock, WA
  • Average rainfall in December: 5.79"

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 December
Littlerock, WA

Average rainfall days in December - Littlerock, WA
  • Average rainfall days in December: 18.8 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 December
Littlerock, WA

Average snowfall in December - Littlerock, WA
  • Average snowfall in December: 0.31"

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 December
Littlerock, WA

Average snowfall days in December - Littlerock, WA
  • Average snowfall days in December: 1.4 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 December /
Average sunshine in December
Littlerock, WA

Average daylight in December / Average sunshine in December - Littlerock, WA
  • Average daylight in December: 8h and 4min

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 December: 3h and 2min

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 December
Littlerock, WA

Average sunshine days in December - Littlerock, WA
  • Average sunshine days in December: 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 December
Littlerock, WA

Average UV index in December - Littlerock, WA
  • Average UV index in December: 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 December
Littlerock, WA

Average cloud cover in December - Littlerock, WA
  • Average cloud cover in December: 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 December
Littlerock, WA

Average visibility in December - Littlerock, WA
  • Average visibility in December: 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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