December weather forecast
Death Valley National Park, CA

Amargosa Range
Amargosa Range's Zabriskie point located in the Death Valley National Park in California

Weather in December

December, the first month of the winter in Death Valley National Park, is still a comfortable month, with an average temperature varying between 65.1°F (18.4°C) and 38.3°F (3.5°C).

Temperature

With an average high-temperature of 65.1°F (18.4°C) and an average low-temperature of 38.3°F (3.5°C), December is the coldest month.

Rainfall

In December, the rain falls for 3 days. Throughout December, 0.31" (8mm) of precipitation is accumulated. In Death Valley National Park, during the entire year, the rain falls for 20 days and collects up to 2.36" (60mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 9h and 43min of daylight.
On the first day of December in Death Valley National Park, California, sunrise is at 6:41 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:42 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 6h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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 Death Valley National Park?

With an average high-temperature of 65.1°F (18.4°C) and an average low-temperature of 38.3°F (3.5°C), December is the coldest month in Death Valley National Park.

What is the temperature in December in Death Valley National Park?

The average high-temperature, in December, is 65.1°F (18.4°C), while the average low-temperature is 38.3°F (3.5°C).

How many days does it rain in December in Death Valley National Park?

In Death Valley National Park, in December, it is raining for 3 days, with typically 0.31" (8mm) of accumulated precipitation.

What is the month with the shortest days in Death Valley National Park?

With an average of 9h and 43min of daylight, December has the shortest days of the year in Death Valley National Park.

How many hours of daylight does Death Valley National Park have in December?

The average day length in December in Death Valley National Park, California, is 9h and 43min.

When is the sunrise / sunset in December in Death Valley National Park?

In December, on the first day of the month, sunrise is at 6:41 am and sunset at 4:33 pm. On the last day of the month, in Death Valley National Park, sunrise is at 6:59 am and sunset at 4:42 pm PST.

What is the month with the least sunshine in Death Valley National Park?

With an average of 6h of sunshine, December has the least sunshine of the year in Death Valley National Park.

How long on average sun shines in December in Death Valley National Park?

In Death Valley National Park, the average sunshine duration in December is 6h.

What is the month with the lowest UV index in Death Valley National Park?

With an average maximum UV index of 2, December is the month with the lowest UV index.

What is the UV index intensity in December in Death Valley National Park?

In December, the average daily maximum UV index in Death Valley National Park is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average rainfall days
Average sunshine
Average UV index

Average temperature in December
Death Valley National Park, CA

Average temperature in December - Death Valley National Park, CA
  • Average high temperature in December: 65.2°F

The warmest month (with the highest average high temperature) is July (116.5°F).
The month with the lowest average high temperature is December (65.2°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (88°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

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Average rainfall in December
Death Valley National Park, CA

Average rainfall in December - Death Valley National Park, CA
  • Average rainfall in December: 0.3"

The wettest month (with the highest rainfall) is February (0.5").
The driest month (with the least rainfall) is May (0").

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Average rainfall days in December
Death Valley National Park, CA

Average rainfall days in December - Death Valley National Park, CA
  • Average rainfall days in December: 3 days

The months with the highest number of rainy days are January, February, March and December (3 days).
The months with the least rainy days are June and July (0 days).

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Average daylight in December /
Average sunshine in December
Death Valley National Park, CA

Average daylight in December / Average sunshine in December - Death Valley National Park, CA
  • Average daylight in December: 9h and 43min

The month with the longest days is June (Average daylight: 14h and 37min).
The month with the shortest days is December (Average daylight: 9h and 43min).

  • Average sunshine in December: 6h

The months with the most sunshine are June and July (Average sunshine: 13h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average UV index in December
Death Valley National Park, CA

Average UV index in December - Death Valley National Park, CA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 10).
The month with the lowest UV index is December (UV index 2).

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