December weather forecast
Capitol Reef National Park, UT

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Natural sandstone formation in the Cathedral Wash, within the Capitol Reef National Park, Utah
Natural sandstone formation in the Cathedral Wash, within the Capitol Reef National Park, Utah

Weather in December

To round off the year, December at Capitol Reef National Park brings the return of substantial cold, with temperatures oscillating between 10°F (-12.2°C) to 39°F (3.9°C). As the winter solstice approaches, daylight hours dwindle to about 9.5 hours a day. The sun graces the sky for a reduced six hours, and the UV index touches the lower limit of 2. The year concludes with an average rainfall figure of 0.5" (13mm) across seven days. Winter enthusiasts find December's frosty ambiance favorable, marking a serene end to the year in the park.

Temperature

Onset of December comes with a temperature decline, the average high falling from a cool 50°F (10°C) in November to a wintry 39.2°F (4°C). Capitol Reef National Park documents a marked decrease from day to night, with an average low of 10.4°F (-12°C) throughout December.

Rainfall

In December, the rain falls for 7 days. Throughout December, 0.47" (12mm) of precipitation is accumulated. Throughout the year, there are 79 rainfall days, and 7.99" (203mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 5:04 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:14 pm MST.

Sunshine

The months with the least sunshine are January and December, with an average of 6h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The high-temperature during December is 39.2°F (4°C) and the low-temperature is 10.4°F (-12°C).

How many days does it rain in December?

In Capitol Reef National Park, in December, during 7 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

What is the month with the shortest days in Capitol Reef National Park?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does Capitol Reef National Park have in December?

The average day length in December is 9h and 33min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:14 pm MST.

What is the month with the least sunshine?

The months with the least sunshine are January and December, with an average of 6h of sunshine.

How long on average sun shines in December?

In Capitol Reef National Park, the average sunshine duration in December is 6h.

What are the months with the lowest UV index?

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

In Capitol Reef National Park, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Capitol Reef National Park, UT

Average temperature in December - Capitol Reef National Park, UT
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in December: 10°F

The month with the highest average low temperature is July (52°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average rainfall in December
Capitol Reef National Park, UT

Average rainfall in December - Capitol Reef National Park, UT
  • Average rainfall in December: 0.5"

The wettest month (with the highest rainfall) is August (1.4").
The driest months (with the least rainfall) are February and April (0.4").

Average rainfall days in December
Capitol Reef National Park, UT

Average rainfall days in December - Capitol Reef National Park, UT
  • Average rainfall days in December: 7 days

The months with the highest number of rainy days are March and August (8 days).
The month with the least rainy days is June (5 days).

Average daylight in December /
Average sunshine in December
Capitol Reef National Park, UT

Average daylight in December / Average sunshine in December - Capitol Reef National Park, UT
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 6h

The month with the most sunshine is June (Average sunshine: 12h).
The months with the least sunshine are January and December (Average sunshine: 6h).

Average UV index in December
Capitol Reef National Park, UT

Average UV index in December - Capitol Reef National Park, UT
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 11).
The months with the lowest UV index are January and December (UV index 2).

Capitol Reef National Park, Utah, USA

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