December weather forecast
Murrieta, CA

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The dense city of Murrieta in California, with a far view of hills and snow-covered mountains
The dense city of Murrieta in California, with a far view of hills and snow-covered mountains

Weather in December

December marks the height of winter in Murrieta with temperatures descending to a low of 43.5°F (6.4°C). This month sees the highest rainfall of the year with an average of 1.81" (46mm). The city situates itself for the year-end festivities with frosty mornings and chilly evenings. While the daylight hours are the shortest, the festive cheer keeps the city's atmosphere lively and vibrant.

Temperature

December, characterized by an average high temperature of 61.7°F (16.5°C) and a low temperature of 43.5°F (6.4°C), is generally the coldest month in Murrieta, California.

Humidity

In Murrieta, the average relative humidity in December is 58%.

Rainfall

The month with the most rainfall in Murrieta is December, when the rain falls for 6.5 days and typically aggregates up to 1.81" (46mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 6:35 am and sunset at 4:40 pm. On the last day of December, sunrise is at 6:53 am and sunset at 4:51 pm PST.

Sunshine

With an average of 6.5h of sunshine, December has the least sunshine of the year in Murrieta.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the coldest time of year in Murrieta?

Murrieta's December weather, marked by an average high temperature of 61.7°F (16.5°C) and an average low temperature of 43.5°F (6.4°C), is the coldest in the year.

What are the temperatures in Murrieta in December?

In Murrieta, 61.7°F (16.5°C) is the average high-temperature and 43.5°F (6.4°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Murrieta?

The average relative humidity in December in Murrieta is 58%.

What is the wettest month in Murrieta?

December is the month with the most rainfall in Murrieta, California. Rain falls for 6.5 days and accumulates 1.81" (46mm) of precipitation.

How many days does it rain in December in Murrieta?

In December, in Murrieta, the rain falls for 6.5 days. Throughout December, 1.81" (46mm) of precipitation is accumulated.

What is the month with the shortest days in Murrieta?

The month with the shortest days in Murrieta, California, is December, with an average of 10h and 0min of daylight.

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

In December, the average day length is 9h and 58min.

What time are sunrise and sunset in December in Murrieta?

On the first day of December in Murrieta, sunrise is at 6:35 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:51 pm PST.

What is the month with the least sunshine in Murrieta?

December has the least sunshine of the year in Murrieta, with an average of 6.5h of sunshine.

How many hours of sunshine does Murrieta have in December?

In December, the average sunshine duration in Murrieta, California, is 6.5h.

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

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

How high is the UV index in December in Murrieta?

The average daily maximum UV index in December in Murrieta, California, is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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
Murrieta, CA

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

The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in December: 43.5°F

The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is February (43.3°F).

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Average pressure in December
Murrieta, CA

Average pressure in December - Murrieta, 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 (29.86"Hg).

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Average wind speed in December
Murrieta, CA

Average wind speed in December - Murrieta, CA
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

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Average humidity in December
Murrieta, CA

Average humidity in December - Murrieta, CA
  • Average humidity in December: 58%

The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).

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Average rainfall in December
Murrieta, CA

Average rainfall in December - Murrieta, CA
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Murrieta, CA

Average rainfall days in December - Murrieta, CA
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is June (1.4 days).

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

Average daylight in December / Average sunshine in December - Murrieta, CA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in December
Murrieta, CA

Average sunshine days in December - Murrieta, CA
  • Average sunshine days in December: 23.4 days

The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in December
Murrieta, CA

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

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

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Average cloud cover in December
Murrieta, CA

Average cloud cover in December - Murrieta, CA
  • Average cloud cover in December: 26

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in December
Murrieta, CA

Average visibility in December - Murrieta, 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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Murrieta, California, USA

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