December weather forecastSouth Yuba City, CA
December
Weather in December
December, the first month of the winter in South Yuba City, is still a cool month, with temperature in the range of an average low of 41°F (5°C) and an average high of 54.5°F (12.5°C).Temperature
With average high temperatures of 54.5°F (12.5°C) and lows of 41°F (5°C), December is the coldest month.Humidity
In South Yuba City, California, the average relative humidity in December is 70%.Rainfall
In South Yuba City, in December, it is raining for 10 days, with typically 1.85" (47mm) of accumulated precipitation. In South Yuba City, during the entire year, the rain falls for 69.8 days and collects up to 10.79" (274mm) of precipitation.Snowfall
December is the only month when snow falls. The month with the most snowfall days in South Yuba City is December, when snow falls for 0.1 days.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:54 pm PST.
Sunshine
December has the least sunshine of the year in South Yuba City, with an average of 5.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during December translates into the following guidance:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. 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
Average temperature in December
South Yuba City, CA
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in December: 41°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in December
South Yuba City, CA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
South Yuba City, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity in December
South Yuba City, CA
- Average humidity in December: 70%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (38%).
Average rainfall in December
South Yuba City, CA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is March (2.17").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
South Yuba City, CA
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is July (0.9 days).
Average snowfall days in December
South Yuba City, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
South Yuba City, CA
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
South Yuba City, CA
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in December
South Yuba City, CA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
South Yuba City, CA
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
South Yuba City, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
