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 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
Temperature records mark December as the coldest month, with highs averaging 58.8°F (14.9°C) and lows at 42.1°F (5.6°C).Humidity
In Crown Jewel, the average relative humidity in December is 51%.Rainfall
December is the month with the most rainfall in Crown Jewel. Rain falls for 6.5 days and accumulates 1.38" (35mm) of precipitation.Snowfall
In Crown Jewel, California, snow does not fall in January, March through December.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December in Crown Jewel, sunrise is at 6:36 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:50 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.9h of sunshine.UV index
November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 3 during December translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What are December temperatures in Crown Jewel?
What is the average humidity in December?
What is the rainiest month in Crown Jewel?
How many days does it rain in December?
When it does not snow?
What is the month with the shortest days?
How many hours of daylight does Crown Jewel have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Crown Jewel have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Crown Jewel, CA
- Average high temperature in December: 58.8°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (58.8°F).
- Average low temperature in December: 42.1°F
The month with the highest average low temperature is August (66.2°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in December
Crown Jewel, 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 (29.84"Hg).
Average wind speed in December
Crown Jewel, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity in December
Crown Jewel, CA
- Average humidity in December: 51%
The months with the highest relative humidity are February and March (52%).
The month with the lowest relative humidity is August (37%).
Average rainfall in December
Crown Jewel, CA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Crown Jewel, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is December (6.5 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in December
Crown Jewel, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Crown Jewel, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in December
Crown Jewel, CA
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in December
Crown Jewel, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Crown Jewel, CA
- Average cloud cover in December: 21
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Crown Jewel, 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).
Crown Jewel, California, USA
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