December weather forecast
Cottonwood Heights, UT

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Weather in December

December in Cottonwood Heights is immersed in a wintry chill and a festive holiday spirit. It records the highest snowfall with 10.55" (268mm) coating the city, reinforcing the onset of winter. Amidst shorter days and longer nights, the city is adorned with holiday lights, adding a sparkle to the snowy landscape. Prepare for chilly temperatures, frequent snow, and frosty winds with which the year concludes. Entering the new year, expect the wintery conditions to stick around.

Temperature

A change in temperatures is noted in Cottonwood Heights as November gives way to December, with average highs reducing from a frosty 44.4°F (6.9°C) to an icy 32.4°F (0.2°C). Cottonwood Heights observes an average low-temperature of 18°F (-7.8°C) during December nights.

Humidity

In Cottonwood Heights, the average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 10.4 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. Throughout the year, in Cottonwood Heights, Utah, there are 118.7 rainfall days, and 16.34" (415mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Cottonwood Heights are January through May, October through December. In Cottonwood Heights, during December, snow falls for 13.4 days and regularly aggregates up to 10.55" (268mm) of snow. In Cottonwood Heights, during the entire year, snow falls for 62.8 days and aggregates up to 51.65" (1312mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:32 am and sunset at 5:00 pm. On the last day of December, in Cottonwood Heights, sunrise is at 7:50 am and sunset at 5:10 pm MST.

Sunshine

In Cottonwood Heights, Utah, the average sunshine in December is 5.7h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Cottonwood Heights?

The high-temperature, in December, in Cottonwood Heights, is 32.4°F (0.2°C), while the low-temperature averages to 18°F (-7.8°C).

What is the average humidity in December in Cottonwood Heights?

The average relative humidity in December in Cottonwood Heights, Utah, is 81%.

How much does it rain in Cottonwood Heights in December?

In Cottonwood Heights, in December, during 10.4 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

How much does it snow in Cottonwood Heights in December?

In December, in Cottonwood Heights, it is snowing for 13.4 days. Throughout December, 10.55" (268mm) of snow is accumulated.

What is the month with the shortest days in Cottonwood Heights?

December has the shortest days of the year in Cottonwood Heights, Utah, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Cottonwood Heights?

In Cottonwood Heights, the average day length in December is 9h and 19min.

What time are sunrise and sunset in December in Cottonwood Heights?

On the first day of December in Cottonwood Heights, Utah, sunrise is at 7:32 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:10 pm MST.

How many hours of sunshine does Cottonwood Heights have in December?

In Cottonwood Heights, the average sunshine duration in December is 5.7h.

When is the lowest UV index in Cottonwood Heights?

December is the month with the lowest UV index in Cottonwood Heights, Utah, with an average maximum UV index of 1.

What is the UV index intensity in December in Cottonwood Heights?

In December, the average daily maximum UV index in Cottonwood Heights, Utah, is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Cottonwood Heights, UT

Average temperature in December - Cottonwood Heights, UT
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 18°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in December
Cottonwood Heights, UT

Average pressure in December - Cottonwood Heights, UT
  • Average pressure in December: 30.22"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Cottonwood Heights, UT

Average wind speed in December - Cottonwood Heights, UT
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is March (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).

Average humidity in December
Cottonwood Heights, UT

Average humidity in December - Cottonwood Heights, UT
  • Average humidity in December: 81%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (38%).

Average rainfall in December
Cottonwood Heights, UT

Average rainfall in December - Cottonwood Heights, UT
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is February (1.97").
The driest month (with the least rainfall) is June (0.67").

Average rainfall days in December
Cottonwood Heights, UT

Average rainfall days in December - Cottonwood Heights, UT
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is June (7.3 days).

Average snowfall in December
Cottonwood Heights, UT

Average snowfall in December - Cottonwood Heights, UT
  • Average snowfall in December: 10.55"

The month with the highest snowfall is January (11.97").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cottonwood Heights, UT

Average snowfall days in December - Cottonwood Heights, UT
  • Average snowfall days in December: 13.4 days

The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Cottonwood Heights, UT

Average daylight in December / Average sunshine in December - Cottonwood Heights, UT
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in December
Cottonwood Heights, UT

Average sunshine days in December - Cottonwood Heights, UT
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is June (20.1 days).
The month with the least sunshine days is February (10.7 days).

Average UV index in December
Cottonwood Heights, UT

Average UV index in December - Cottonwood Heights, UT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Cottonwood Heights, UT

Average cloud cover in December - Cottonwood Heights, UT
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in December
Cottonwood Heights, UT

Average visibility in December - Cottonwood Heights, UT
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Cottonwood Heights, Utah, USA

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