Death Valley National Park
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Death Valley National Park, CA

Amargosa Range
Amargosa Range's Zabriskie point located in the Death Valley National Park IN California
December, the first month of the winter, in Death Valley National Park, is still a comfortable month, with average temperature ranging between max 65.1°F (18.4°C) and min 38.3°F (3.5°C).

Temperature

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

Rainfall

In Death Valley National Park, during December, the rain falls for 3 days and regularly aggregates up to 0.3" (7.6mm) of precipitation. In Death Valley National Park, during the entire year, the rain falls for 20 days and collects up to 2.4" (60mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 9.7h of daylight.

Sunshine

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

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Death Valley National Park. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for the ordinary person.
In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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.

What is the coldest month in Death Valley National Park?

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

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

In December, the average high-temperature is 65.1°F (18.4°C), and 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, during December, the rain falls for 3 days and regularly aggregates up to 0.3" (7.6mm) of precipitation.

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

December has the shortest days of the year, with an average of 9.7h of daylight.

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

In Death Valley National Park, the average length of the day in December is 9.7h.

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

The month with the least sunshine in Death Valley National Park is December, with an average of 6h of sunshine.

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

The average sunshine in December in Death Valley National Park is 6h.

When is the lowest UV index in Death Valley National Park?

The month with the lowest UV index in Death Valley National Park is December, with an average maximum UV index of 2.

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

In Death Valley National Park, California, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
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).

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 lowest rainfall) is May (0").

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

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

Average daylight in December / Average sunshine in December - Death Valley National Park, CA
  • Average daylight in December: 9.7h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in December: 6h

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

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

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).