December weather forecastQuail Valley, CA
December
Weather in December
The first month of the winter, December, is still a comfortable month in Quail Valley, California, with an average temperature varying between 43.7°F (6.5°C) and 61.5°F (16.4°C).Temperature
December is the month that records the lowest temperatures, with averages ranging from a high of 61.5°F (16.4°C) to a low of 43.7°F (6.5°C).Humidity
In December, the average relative humidity is 57%.Rainfall
In Quail Valley, California, in December, it is raining for 4.5 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 34.6 rainfall days, and 2.56" (65mm) of precipitation is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:36 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:51 pm PST.
Sunshine
With an average of 6.6h of sunshine, December has the least sunshine of the year.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Quail Valley, CA
- Average high temperature in December: 61.5°F
The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is December (61.5°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (43.7°F).
Average pressure in December
Quail Valley, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Quail Valley, CA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.1mph).
Average humidity in December
Quail Valley, CA
- Average humidity in December: 57%
The month with the highest relative humidity is May (62%).
The months with the lowest relative humidity are August and November (50%).
Average rainfall in December
Quail Valley, CA
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is February (0.55").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Quail Valley, CA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in December /
Average sunshine in December
Quail Valley, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Quail Valley, CA
- Average sunshine days in December: 25 days
The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in December
Quail Valley, CA
- Average UV index in December: 3
The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Quail Valley, CA
- Average cloud cover in December: 24
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Quail Valley, 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).





