December weather forecastLittlerock, WA
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 8h and 36min
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 24min
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: 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: 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: 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: 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).
