December weather forecast and climate
Calabasas, CA

Weather in December

December, the first month of the winter, in Calabasas, is still a comfortable month, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 61.7°F (16.5°C).

Temperature

With an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 49.1°F (9.5°C), December is the coldest month.

Humidity

In Calabasas, the average relative humidity is 56%.

Rainfall

In December, the rain falls for 5.5 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Calabasas, during the entire year, the rain falls for 49.2 days and collects up to 9.09" (231mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 9.9h of daylight.

Sunshine

January, February and December, with an average of 6.8h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the coldest month in Calabasas?

The coldest month is December, with an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 49.1°F (9.5°C).

What is the temperature in December in Calabasas?

The average high-temperature, in December, is 61.7°F (16.5°C), while the average low-temperature is 49.1°F (9.5°C).

What is the average humidity in December in Calabasas?

The average relative humidity in December is 56%.

How much does it rain in Calabasas in December?

In December, in Calabasas, the rain falls for 5.5 days. Throughout December, 1.57" (40mm) of precipitation is accumulated.

What is the month with the shortest days in Calabasas?

December has the shortest days of the year in Calabasas, with an average of 9.9h of daylight.

What is the average length of the day in December in Calabasas?

In Calabasas, the average length of the day in December is 9.9h.

What is the month with the least sunshine in Calabasas?

Months with the least sunshine in Calabasas, California, are January, February and December, with an average of 6.8h of sunshine.

How many hours of sunshine does Calabasas have in December?

In December, the average sunshine is 6.8h.

When is the lowest UV index in Calabasas?

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

What is the UV index reading in December in Calabasas?

The average daily maximum UV index in December in Calabasas is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Calabasas, CA

Average temperature in December - Calabasas, CA
  • Average high temperature in December: 61.7°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in December: 49.1°F

The month with the highest average low temperature is August (64.6°F).
The coldest months (with the lowest average low temperature) are February and December (49.1°F).

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Average pressure in December
Calabasas, CA

Average pressure in December - Calabasas, CA
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is January (30.11").
Months with the lowest atmospheric pressure are June and September (29.9").

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Average wind speed in December
Calabasas, CA

Average wind speed in December - Calabasas, CA
  • Average wind speed in December: 6.2mph

The windiest months (with the highest average wind speed) are April and December (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
Calabasas, CA

Average humidity in December - Calabasas, CA
  • Average humidity in December: 56%

The month with the highest relative humidity is June (67%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in December
Calabasas, CA

Average rainfall in December - Calabasas, CA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is February (1.97").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Calabasas, CA

Average rainfall days in December - Calabasas, CA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.2 days).

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Average daylight in December /
Average sunshine in December
Calabasas, CA

Average daylight in December / Average sunshine in December - Calabasas, CA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 6.8h

Months with the most sunshine are June, July and August (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in December
Calabasas, CA

Average sunshine days in December - Calabasas, CA
  • Average sunshine days in December: 24.5 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (21.2 days).

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Average UV index in December
Calabasas, CA

Average UV index in December - Calabasas, CA
  • Average UV index in December: 4

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in December
Calabasas, CA

Average cloud cover in December - Calabasas, CA
  • Average cloud cover in December: 21

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in December
Calabasas, CA

Average visibility in December - Calabasas, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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