December weather forecastLongbranch, WA
December
Weather in December
December, the first month of the winter in Longbranch, is also a frosty month, with an average temperature fluctuating between 34.3°F (1.3°C) and 43.7°F (6.5°C).Temperature
Longbranch notes the coldest temperatures in December, with a high average of 43.7°F (6.5°C) and a low of 34.3°F (1.3°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
December is the month with the most rainfall. Rain falls for 18.4 days and accumulates 4.69" (119mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Longbranch, in December, during 1.3 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Longbranch, during the entire year, snow falls for 8.9 days and aggregates up to 5.04" (128mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:57 am and sunset at 4:31 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Longbranch, WA
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).
Average pressure in December
Longbranch, WA
- Average pressure in December: 30.08"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).
Average wind speed in December
Longbranch, WA
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Longbranch, WA
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (68%).
Average rainfall in December
Longbranch, WA
- Average rainfall in December: 4.69"
The wettest month (with the highest rainfall) is December (4.69").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Longbranch, WA
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (5 days).
Average snowfall in December
Longbranch, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Longbranch, WA
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (3.2 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
Longbranch, WA
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in December
Longbranch, WA
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Longbranch, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Longbranch, WA
- Average cloud cover in December: 59
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Longbranch, WA
- Average visibility in December: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
