December weather forecastSeiad Valley, CA
December
Weather in December
December, the first month of the winter in Seiad Valley, is still a chilly month, with an average temperature varying between 28.9°F (-1.7°C) and 43.5°F (6.4°C).Temperature
December is the coldest month, with the temperature often reaching an average high of 43.5°F (6.4°C) and an average low of 28.9°F (-1.7°C).Humidity
January and December, with an average relative humidity of 84%, are the most humid months in Seiad Valley.Rainfall
In Seiad Valley, in December, during 8.9 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, in Seiad Valley, there are 92.5 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Seiad Valley, California. December is the month with the most snowfall. Snow falls for 6.7 days and accumulates 6.3" (160mm) of snow.Daylight
December has the shortest days of the year in Seiad Valley, California, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:42 pm. On the last day of December, in Seiad Valley, sunrise is at 7:40 am and sunset at 4:52 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 5h of sunshine.UV index
The months with the lowest UV index in Seiad Valley, California, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Seiad Valley, CA
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in December: 28.9°F
The months with the highest average low temperature are July and August (49.5°F).
The coldest month (with the lowest average low temperature) is December (28.9°F).
Average pressure in December
Seiad Valley, CA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in December
Seiad Valley, CA
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in December
Seiad Valley, CA
- Average humidity in December: 84%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (60%).
Average rainfall in December
Seiad Valley, CA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is January (2.01").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Seiad Valley, CA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in December
Seiad Valley, CA
- Average snowfall in December: 6.3"
The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Seiad Valley, CA
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Seiad Valley, CA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 0min).
Average sunshine days in December
Seiad Valley, CA
- Average sunshine days in December: 17.2 days
The months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is March (15 days).
Average UV index in December
Seiad Valley, CA
- 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
Seiad Valley, CA
- Average cloud cover in December: 51
The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Seiad Valley, CA
- Average visibility in December: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
