December weather forecastYettem, CA
December
Weather in December
The first month of the winter, December, is also a fresh month in Yettem, California, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 40.1°F (4.5°C).Temperature
December, marked by an average high-temperature of 55.2°F (12.9°C) and a low-temperature of 40.1°F (4.5°C), is the coldest month.Humidity
The average relative humidity in December in Yettem, California, is 63%.Rainfall
In Yettem, in December, it is raining for 7.5 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Yettem, there are 61.2 rainfall days, and 14.29" (363mm) of precipitation is accumulated.Snowfall
February and December are months with snowfall. The months with the most snowfall days are February and December, with an average of 0.1 snowfall days.Daylight
December has the shortest days of the year in Yettem, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:51 am and sunset at 4:41 pm. On the last day of December, in Yettem, California, sunrise is at 7:08 am and sunset at 4:52 pm PST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year in Yettem.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 in December translates into this advice:
Prioritize safety - Recommendations to avert sunburn are shared. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yettem, CA
- Average high temperature in December: 55.2°F
The warmest month (with the highest average high temperature) is July (97.3°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in December: 40.1°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in December
Yettem, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Yettem, CA
- Average wind speed in December: 3.4mph
The windiest month (with the highest average wind speed) is June (5mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in December
Yettem, CA
- Average humidity in December: 63%
The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
Yettem, CA
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is March (2.72").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in December
Yettem, CA
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (1 days).
Average snowfall days in December
Yettem, CA
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are February and December (0.1 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
Yettem, CA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Yettem, CA
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is March (19.8 days).
Average UV index in December
Yettem, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Yettem, CA
- Average cloud cover in December: 23
The month with the most cloud cover is March (Cloud cover 25).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in December
Yettem, 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).
