December weather forecast
Salt Lake City, UT

A stunning autumn panorama of the Salt Lake City landscape in Utah
A stunning autumn panorama of the Salt Lake City landscape in Utah

Weather in December

The first month of the winter, December, is still a cold month in Salt Lake City, Utah, with temperature in the range of an average high of 34.3°F (1.3°C) and an average low of 22.3°F (-5.4°C).

Temperature

In December, the average high-temperature drops from a chilly 46.2°F (7.9°C) in November to a cold 34.3°F (1.3°C). In Salt Lake City, the average low-temperature is 22.3°F (-5.4°C).

Humidity

In December, the average relative humidity in Salt Lake City is 77%.

Rainfall

In Salt Lake City, during 6.3 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, in Salt Lake City, there are 71.6 rainfall days, and 4.21" (107mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Salt Lake City are January through April, October through December. In Salt Lake City, during December, snow falls for 5.1 days and regularly aggregates up to 1.65" (42mm) of snow. In Salt Lake City, during the entire year, snow falls for 25.8 days and aggregates up to 10.39" (264mm) of snow.

Daylight

With an average of 9h and 19min 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 Salt Lake City, sunrise is at 7:51 am and sunset at 5:09 pm MST.

Sunshine

In December, the average sunshine is 6.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Salt Lake City. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Salt Lake City?

The average high-temperature, in December, is 34.3°F (1.3°C), while the average low-temperature is 22.3°F (-5.4°C).

What is the average humidity in December in Salt Lake City?

In December, the average relative humidity is 77%.

How many days does it rain in December in Salt Lake City?

In Salt Lake City, Utah, in December, during 6.3 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

How much does it snow in Salt Lake City in December?

In Salt Lake City, Utah, in December, during 5.1 snowfall days, 1.65" (42mm) of snow is typically accumulated.

What is the month with the shortest days in Salt Lake City?

December has the shortest days of the year in Salt Lake City, with an average of 9h and 19min of daylight.

What is the average length of the day in December in Salt Lake City?

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

What time are sunrise and sunset in December in Salt Lake City?

On the first day of December in Salt Lake City, sunrise is at 7:32 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:09 pm MST.

How many hours of sunshine does Salt Lake City have in December?

In Salt Lake City, the average sunshine duration in December is 6.1h.

What is the month with the lowest UV index in Salt Lake City?

The months with the lowest UV index in Salt Lake City are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Salt Lake City?

In Salt Lake City, Utah, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Salt Lake City, UT

Average temperature in December - Salt Lake City, UT
  • Average high temperature in December: 34.3°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 (34°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in December
Salt Lake City, UT

Average pressure in December - Salt Lake City, UT
  • Average pressure in December: 30.22"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in December
Salt Lake City, UT

Average wind speed in December - Salt Lake City, UT
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in December
Salt Lake City, UT

Average humidity in December - Salt Lake City, UT
  • Average humidity in December: 77%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in December
Salt Lake City, UT

Average rainfall in December - Salt Lake City, UT
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is March (0.51").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in December
Salt Lake City, UT

Average rainfall days in December - Salt Lake City, UT
  • Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is April (8.9 days).
The month with the least rainy days is June (4 days).

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Average snowfall in December
Salt Lake City, UT

Average snowfall in December - Salt Lake City, UT
  • Average snowfall in December: 1.65"

The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Salt Lake City, UT

Average snowfall days in December - Salt Lake City, UT
  • Average snowfall days in December: 5.1 days

The months with the highest number of snowfall days are January and February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Salt Lake City, UT

Average daylight in December / Average sunshine in December - Salt Lake City, UT
  • Average daylight in December: 9h and 19min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in December: 6h and 6min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

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Average sunshine days in December
Salt Lake City, UT

Average sunshine days in December - Salt Lake City, UT
  • Average sunshine days in December: 21.7 days

The month with the most sunshine days is June (23.8 days).
The month with the least sunshine days is February (19 days).

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Average UV index in December
Salt Lake City, UT

Average UV index in December - Salt Lake City, UT
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Salt Lake City, UT

Average cloud cover in December - Salt Lake City, UT
  • Average cloud cover in December: 37

The months with the most cloud cover are January and February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in December
Salt Lake City, UT

Average visibility in December - Salt Lake City, UT
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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