Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The coldest time of the year is December, with temperatures averaging a high of 52.7°F (11.5°C) and a low of 42.4°F (5.8°C).Humidity
In December, the average relative humidity is 78%.Rainfall
December is the month with the most rainfall. Rain falls for 15.6 days and accumulates 5.87" (149mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:58 pm PST.
Sunshine
The months with the least sunshine in Korbel are January and December, with an average of 5.1h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during December leads to these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What are December temperatures?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
When it does not snow?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Korbel, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 42.4°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).
Average pressure in December
Korbel, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Korbel, CA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Korbel, CA
- Average humidity in December: 78%
The month with the highest relative humidity is March (82%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall in December
Korbel, CA
- Average rainfall in December: 5.87"
The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Korbel, CA
- Average rainfall days in December: 15.6 days
The month with the highest number of rainy days is March (16.8 days).
The months with the least rainy days are July and August (2.2 days).
Average snowfall in December
Korbel, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Korbel, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Korbel, CA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Korbel, CA
- Average sunshine days in December: 14.7 days
The months with the most sunshine days are July and August (28 days).
The month with the least sunshine days is March (12.5 days).
Average UV index in December
Korbel, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in December
Korbel, CA
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in December
Korbel, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Korbel, California, USA
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