December weather forecast
Tremonton, UT

Share

Weather in December

The first month of the winter, December, is still a freezing cold month in Tremonton, Utah, with an average temperature fluctuating between 31.1°F (-0.5°C) and 19°F (-7.2°C).

Temperature

Welcoming December, Tremonton observes a shift in the average high-temperature, falling from November's frosty 44.1°F (6.7°C) to a freezing cold 31.1°F (-0.5°C). December in Tremonton sees the temperature falling to a mean low of 19°F (-7.2°C).

Humidity

In Tremonton, the average relative humidity in December is 82%.

Rainfall

In Tremonton, in December, during 11.1 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Tremonton, during the entire year, the rain falls for 120 days and collects up to 15.43" (392mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Tremonton, during December, snow falls for 13.4 days and regularly aggregates up to 9.29" (236mm) of snow. Throughout the year, there are 61.2 snowfall days, and 42.91" (1090mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:55 am and sunset at 5:08 pm MST.

Sunshine

In December, the average sunshine is 5.7h.

UV index

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Tremonton, records 31.1°F (-0.5°C), while the low-temperature is 19°F (-7.2°C).

What is the average humidity in December?

The average relative humidity in December is 82%.

How many days does it rain in December?

In Tremonton, Utah, in December, it is raining for 11.1 days, with typically 1.61" (41mm) of accumulated precipitation.

How much does it snow in December?

In Tremonton, in December, during 13.4 snowfall days, 9.29" (236mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

How many hours of daylight does Tremonton have in December?

In Tremonton, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:36 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 5:08 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 5.7h.

What is the UV index intensity in December?

In December, the average daily maximum UV index in Tremonton is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Tremonton, UT

Average temperature in December - Tremonton, UT
  • Average high temperature in December: 31.1°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in December: 19°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in December
Tremonton, UT

Average pressure in December - Tremonton, UT
  • Average pressure in December: 30.24"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Tremonton, UT

Average wind speed in December - Tremonton, UT
  • Average wind speed in December: 4.6mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in December
Tremonton, UT

Average humidity in December - Tremonton, UT
  • Average humidity in December: 82%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (34%).

Average rainfall in December
Tremonton, UT

Average rainfall in December - Tremonton, UT
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in December
Tremonton, UT

Average rainfall days in December - Tremonton, UT
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is July (5.5 days).

Average snowfall in December
Tremonton, UT

Average snowfall in December - Tremonton, UT
  • Average snowfall in December: 9.29"

The month with the highest snowfall is January (13.03").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Tremonton, UT

Average snowfall days in December - Tremonton, UT
  • Average snowfall days in December: 13.4 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Tremonton, UT
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 5h and 4min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in December
Tremonton, UT

Average sunshine days in December - Tremonton, UT
  • Average sunshine days in December: 13.2 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is February (10.1 days).

Average UV index in December
Tremonton, UT

Average UV index in December - Tremonton, UT
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Tremonton, UT

Average cloud cover in December - Tremonton, UT
  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in December
Tremonton, UT

Average visibility in December - Tremonton, 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).

Tremonton, Utah, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location