December weather forecastDel Rey Oaks, CA
December
Weather in December
The first month of the winter, December, is also a moderate month in Del Rey Oaks, California, with an average temperature varying between 57.2°F (14°C) and 46.4°F (8°C).Temperature
The month of December, characterized by an average high of 57.2°F (14°C) and a low of 46.4°F (8°C), is recognized as the coldest.Humidity
In December, the average relative humidity is 71%.Rainfall
December is the month with the most rainfall. Rain falls for 9.9 days and accumulates 2.4" (61mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:02 pm PST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index in Del Rey Oaks, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 3 in December transforms into this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Del Rey Oaks, CA
- Average high temperature in December: 57.2°F
The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in December: 46.4°F
The months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in December
Del Rey Oaks, 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 September (29.92"Hg).
Average wind speed in December
Del Rey Oaks, CA
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Del Rey Oaks, CA
- Average humidity in December: 71%
The months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).
Average rainfall in December
Del Rey Oaks, CA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in December
Del Rey Oaks, CA
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (1.1 days).
Average daylight in December /
Average sunshine in December
Del Rey Oaks, 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
The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Del Rey Oaks, CA
- Average sunshine days in December: 20 days
The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in December
Del Rey Oaks, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Del Rey Oaks, CA
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Del Rey Oaks, 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).
