December weather forecast and climate
Tarzana, CA

Weather in December

The first month of the winter, December, is also an enjoyable month in Tarzana, California, with average temperature fluctuating between 61.9°F (16.6°C) and 46.9°F (8.3°C).

Temperature

The coldest month is December, with an average high-temperature of 61.9°F (16.6°C) and an average low-temperature of 46.9°F (8.3°C).

Humidity

In December, the average relative humidity in Tarzana is 53%.

Rainfall

In Tarzana, during December, the rain falls for 4.7 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Tarzana, during the entire year, the rain falls for 42.7 days and collects up to 6.46" (164mm) of precipitation.

Snowfall

The only month with snowfall in Tarzana, California, is December. The month with the most snowfall days in Tarzana is December when snow falls for 0.1 days.

Daylight

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

Sunshine

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

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Tarzana, California. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Tarzana?

December is the coldest month in Tarzana, with an average high-temperature of 61.9°F (16.6°C) and an average low-temperature of 46.9°F (8.3°C).

What is the average humidity in December in Tarzana?

The average relative humidity in December in Tarzana, California, is 53%.

How many days does it rain in December in Tarzana?

In Tarzana, California, in December, during 4.7 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When does it snow the most in Tarzana?

The month with the most snowfall days in Tarzana, California, is December when snow falls for 0.1 days.

When does it start snowing in Tarzana?

December is the first month it typically snows in Tarzana. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Tarzana?

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

How many hours of daylight does Tarzana have in December?

The average length of the day in December in Tarzana is 9.9h.

What is the month with the least sunshine in Tarzana?

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

How long on average sun shines in December in Tarzana?

In December, the average sunshine in Tarzana is 6.8h.

What is the month with the lowest UV index in Tarzana?

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

What is the UV index intensity in December in Tarzana?

The average daily maximum UV index in December in Tarzana is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in December
Tarzana, CA

Average temperature in December - Tarzana, CA
  • Average high temperature in December: 61.9°F

The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (61.9°F).

  • Average low temperature in December: 46.9°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

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Average pressure in December
Tarzana, CA

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

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in December
Tarzana, CA

Average wind speed in December - Tarzana, CA
  • Average wind speed in December: 6.1mph

The windiest months (with the highest average wind speed) are January and December (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in December
Tarzana, CA

Average humidity in December - Tarzana, CA
  • Average humidity in December: 53%

The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in December
Tarzana, CA

Average rainfall in December - Tarzana, CA
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is February (1.22").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Tarzana, CA

Average rainfall days in December - Tarzana, CA
  • Average rainfall days in December: 4.7 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.4 days).

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Average snowfall days in December
Tarzana, CA

Average snowfall days in December - Tarzana, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Tarzana, 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 and July (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
Tarzana, CA

Average sunshine days in December - Tarzana, CA
  • Average sunshine days in December: 24.7 days

Months with the most sunshine days are August and October (27.3 days).
The month with the least sunshine days is February (22 days).

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Average UV index in December
Tarzana, CA

Average UV index in December - Tarzana, CA
  • Average UV index in December: 3

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Tarzana, CA

Average cloud cover in December - Tarzana, 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 4).

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Average visibility in December
Tarzana, CA

Average visibility in December - Tarzana, 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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