December weather forecast
La Mirada, CA

Weather in December

The first month of the winter, December, is still a comfortable month in La Mirada, California, with an average temperature ranging between min 50.9°F (10.5°C) and max 64.9°F (18.3°C).

Temperature

With an average high-temperature of 64.9°F (18.3°C) and an average low-temperature of 50.9°F (10.5°C), December is the coldest month.

Humidity

The average relative humidity in December is 53%.

Rainfall

December is the month with the most rainfall in La Mirada. Rain falls for 5.5 days and accumulates 1.54" (39mm) of precipitation.

Daylight

With an average of 9h and 56min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:39 am and sunset at 4:43 pm. On the last day of December, sunrise is at 6:56 am and sunset at 4:53 pm PST.

Sunshine

February and December, with an average of 6.7h of sunshine, are months with the least sunshine in La Mirada.

UV index

February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in La Mirada. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the coldest month in La Mirada?

December is the coldest month, with an average high-temperature of 64.9°F (18.3°C) and an average low-temperature of 50.9°F (10.5°C).

What is the temperature in December in La Mirada?

In December, in La Mirada, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 50.9°F (10.5°C). in September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the average humidity in December in La Mirada?

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

What is the rainiest month in La Mirada?

The month with the most rainfall in La Mirada is December, when the rain falls for 5.5 days and typically aggregates up to 1.54" (39mm) of precipitation.

How many days does it rain in December in La Mirada?

In La Mirada, during December, the rain falls for 5.5 days and regularly aggregates up to 1.54" (39mm) of precipitation.

What is the month with the shortest days in La Mirada?

December has the shortest days of the year in La Mirada, California, with an average of 9h and 56min of daylight.

What is the average length of the day in December in La Mirada?

In December, the average day length in La Mirada is 9h and 56min.

When are sunrise and sunset in December in La Mirada?

On the first day of December, sunrise is at 6:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:53 pm PST.

What are the months with the least sunshine in La Mirada?

February and December, with an average of 6.7h of sunshine, are months with the least sunshine.

How long on average sun shines in December in La Mirada?

In December, the average sunshine duration in La Mirada is 6.7h.

What is the month with the lowest UV index in La Mirada?

February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in La Mirada, California.

What is the UV index intensity in December in La Mirada?

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
La Mirada, CA

Average temperature in December - La Mirada, CA
  • Average high temperature in December: 64.9°F

The warmest month (with the highest average high temperature) is August (84.7°F).
The month with the lowest average high temperature is December (64.9°F).

  • Average low temperature in December: 50.9°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (50.4°F).

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Average pressure in December
La Mirada, CA

Average pressure in December - La Mirada, 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 (29.88"Hg).

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Average wind speed in December
La Mirada, CA

Average wind speed in December - La Mirada, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is October (4.7mph).

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Average humidity in December
La Mirada, CA

Average humidity in December - La Mirada, CA
  • Average humidity in December: 53%

The month with the highest relative humidity is June (64%).
The month with the lowest relative humidity is November (49%).

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Average rainfall in December
La Mirada, CA

Average rainfall in December - La Mirada, CA
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
La Mirada, CA

Average rainfall days in December - La Mirada, CA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).

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Average daylight in December /
Average sunshine in December
La Mirada, CA

Average daylight in December / Average sunshine in December - La Mirada, CA
  • Average daylight in December: 9h and 56min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in December: 6h and 42min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).

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Average sunshine days in December
La Mirada, CA

Average sunshine days in December - La Mirada, CA
  • Average sunshine days in December: 23.7 days

The month with the most sunshine days is August (26.4 days).
The month with the least sunshine days is February (21.8 days).

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Average UV index in December
La Mirada, CA

Average UV index in December - La Mirada, CA
  • Average UV index in December: 4

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

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Average cloud cover in December
La Mirada, CA

Average cloud cover in December - La Mirada, CA
  • Average cloud cover in December: 22

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in December
La Mirada, CA

Average visibility in December - La Mirada, 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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