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 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
December, known for its average high temperature of 58.1°F (14.5°C) and an average low temperature of 43.5°F (6.4°C), is the coldest month.Humidity
With an average relative humidity of 47%, December is the most humid month.Rainfall
In Cahuilla Hills, in December, during 4.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Cahuilla Hills, during the entire year, the rain falls for 51.6 days and collects up to 6.06" (154mm) of precipitation.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Cahuilla Hills.On the first day of the month, sunrise is at 6:32 am and sunset at 4:37 pm. On the last day of December, sunrise is at 6:50 am and sunset at 4:47 pm PST.
Sunshine
With an average of 7h 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 value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What is the average December temperature?
What is the most humid month?
What is the average humidity in December in Cahuilla Hills?
How much does it rain in December?
What is the month with the shortest days in Cahuilla Hills?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Cahuilla Hills have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Cahuilla Hills, CA
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in December: 43.5°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).
Average pressure in December
Cahuilla Hills, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in December
Cahuilla Hills, CA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is May (8.6mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).
Average humidity in December
Cahuilla Hills, CA
- Average humidity in December: 47%
The month with the highest relative humidity is December (47%).
The months with the lowest relative humidity are June, July and August (29%).
Average rainfall in December
Cahuilla Hills, CA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in December
Cahuilla Hills, CA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is June (1.8 days).
Average daylight in December /
Average sunshine in December
Cahuilla Hills, 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: 7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Cahuilla Hills, CA
- Average sunshine days in December: 24.9 days
The month with the most sunshine days is October (27.5 days).
The month with the least sunshine days is July (18.3 days).
Average UV index in December
Cahuilla Hills, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Cahuilla Hills, CA
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Cahuilla Hills, 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).
Cahuilla Hills, California, USA
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