December weather forecast
Soma, UT

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Weather in December

December, the first month of the winter in Soma, is also a wintry month, with an average temperature ranging between min 17.8°F (-7.9°C) and max 33.8°F (1°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, from a frosty 46.8°F (8.2°C) to a wintry 33.8°F (1°C). During the nights in December, Soma observes an average low-temperature of 17.8°F (-7.9°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In December, in Soma, the rain falls for 8.5 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, in Soma, there are 99.7 rainfall days, and 11.61" (295mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 12.1 days. Throughout December, 7.95" (202mm) of snow is accumulated. In Soma, during the entire year, snow falls for 56.2 days and aggregates up to 40.47" (1028mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 5:05 pm. On the last day of December, in Soma, sunrise is at 7:49 am and sunset at 5:14 pm MST.

Sunshine

The average sunshine in December in Soma, Utah, is 6.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Soma?

An average high-temperature, in December, in Soma, is 33.8°F (1°C) and the average low-temperature is 17.8°F (-7.9°C).

What is the average humidity in December in Soma?

In December, the average relative humidity in Soma, Utah, is 78%.

How much does it rain in Soma in December?

In Soma, during December, the rain falls for 8.5 days and regularly aggregates up to 1.18" (30mm) of precipitation.

How much does it snow in Soma in December?

In Soma, in December, during 12.1 snowfall days, 7.95" (202mm) of snow is typically accumulated.

What is the month with the shortest days in Soma?

December has the shortest days of the year in Soma, Utah, with an average of 9h and 24min of daylight.

How many hours of daylight does Soma have in December?

In December, the average day length in Soma is 9h and 26min.

When are sunrise and sunset in December in Soma?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 5:05 pm. On the last day of the month, in Soma, Utah, sunrise is at 7:49 am and sunset at 5:14 pm MST.

How many hours of sunshine does Soma have in December?

The average sunshine duration in December is 6.1h.

What is the month with the lowest UV index in Soma?

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

What is the UV index intensity in December in Soma?

In Soma, Utah, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Soma, UT

Average temperature in December - Soma, UT
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 17.8°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Soma, UT

Average pressure in December - Soma, UT
  • Average pressure in December: 30.2"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Soma, UT

Average wind speed in December - Soma, UT
  • Average wind speed in December: 4.8mph

The windiest months (with the highest average wind speed) are April and June (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

Average humidity in December
Soma, UT

Average humidity in December - Soma, UT
  • Average humidity in December: 78%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is June (34%).

Average rainfall in December
Soma, UT

Average rainfall in December - Soma, UT
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is March (1.57").
The driest month (with the least rainfall) is June (0.43").

Average rainfall days in December
Soma, UT

Average rainfall days in December - Soma, UT
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is April (11.7 days).
The month with the least rainy days is June (5.3 days).

Average snowfall in December
Soma, UT

Average snowfall in December - Soma, UT
  • Average snowfall in December: 7.95"

The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Soma, UT

Average snowfall days in December - Soma, UT
  • Average snowfall days in December: 12.1 days

The month with the highest number of snowfall days is December (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Soma, UT

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 6h and 1min

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 48min).

Average sunshine days in December
Soma, UT

Average sunshine days in December - Soma, UT
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is June (22 days).
The month with the least sunshine days is February (13.9 days).

Average UV index in December
Soma, UT

Average UV index in December - Soma, 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).

Average cloud cover in December
Soma, UT

Average cloud cover in December - Soma, UT
  • Average cloud cover in December: 37

The months with the most cloud cover are January and December (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in December
Soma, UT

Average visibility in December - Soma, 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).

Soma, Utah, USA

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