December weather forecast
Cahuilla Hills, CA

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Weather in December

The first month of the winter, December, is also a moderate month in Cahuilla Hills, California, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 43.5°F (6.4°C).

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

December is the most humid month in Cahuilla Hills, with an average relative humidity of 47%.

Rainfall

In Cahuilla Hills, in December, it is raining for 4.5 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, in Cahuilla Hills, there are 51.6 rainfall days, and 6.06" (154mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:32 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:47 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 7h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What month is the coldest in Cahuilla Hills?

During the coldest month in Cahuilla Hills, December, temperatures average a high of 58.1°F (14.5°C) and a low of 43.5°F (6.4°C).

What is the usual temperature for Cahuilla Hills in December?

In Cahuilla Hills, in December, the average high-temperature is 58.1°F (14.5°C), and the average low-temperature is 43.5°F (6.4°C).

What is the most humid month in Cahuilla Hills?

December is the most humid month, with an average relative humidity of 47%.

What is the average humidity in December in Cahuilla Hills?

The average relative humidity in December in Cahuilla Hills is 47%.

How much does it rain in Cahuilla Hills in December?

In Cahuilla Hills, California, during December, the rain falls for 4.5 days and regularly aggregates up to 0.71" (18mm) of precipitation.

What is the month with the shortest days in Cahuilla Hills?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the average length of the day in December in Cahuilla Hills?

In December, the average day length in Cahuilla Hills, California, is 9h and 58min.

When are sunrise and sunset in December in Cahuilla Hills?

On the first day of December in Cahuilla Hills, California, sunrise is at 6:32 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:47 pm PST.

What is the month with the least sunshine in Cahuilla Hills?

The month with the least sunshine in Cahuilla Hills, California, is December, with an average of 7h of sunshine.

How many hours of sunshine does Cahuilla Hills have in December?

The average sunshine duration in December in Cahuilla Hills, California, is 7h.

When is the lowest UV index in Cahuilla Hills?

The month with the lowest UV index is December, with an average maximum UV index of 3.

How high is the UV index in December in Cahuilla Hills?

In Cahuilla Hills, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Cahuilla Hills, CA

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).

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Average pressure in December
Cahuilla Hills, CA

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).

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Average wind speed in December
Cahuilla Hills, CA

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).

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Average humidity in December
Cahuilla Hills, CA

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%).

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Average rainfall in December
Cahuilla Hills, CA

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").

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Average rainfall days in December
Cahuilla Hills, CA

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).

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Average daylight in December /
Average sunshine in December
Cahuilla Hills, CA

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).

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Average sunshine days in December
Cahuilla Hills, CA

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).

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Average UV index in December
Cahuilla Hills, CA

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).

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Average cloud cover in December
Cahuilla Hills, CA

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).

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Average visibility in December
Cahuilla Hills, CA

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).

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Cahuilla Hills, California, USA

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