December weather forecast
Moroni, UT

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Weather in December

The first month of the winter, December, is still a freezing cold month in Moroni, Utah, with an average temperature fluctuating between 31.3°F (-0.4°C) and 13.1°F (-10.5°C).

Temperature

Moroni's coldest month, December, generally records average temperatures ranging from a high of 31.3°F (-0.4°C) to a low of 13.1°F (-10.5°C).

Humidity

The average relative humidity in December is 80%.

Rainfall

In Moroni, during December, the rain falls for 3.3 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 79.2 rainfall days, and 10.31" (262mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. December is the month with the most snowfall. Snow falls for 11.5 days and accumulates 6.46" (164mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:12 pm MST.

Sunshine

The average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are January, February, April, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 2 in December transforms into this advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

With average high temperatures of 31.3°F (-0.4°C) and lows of 13.1°F (-10.5°C), December is the coldest month in Moroni.

How cold is December?

Moroni in December has an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 13.1°F (-10.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in July is estimated at 80.6°F (27°C).

What is the average humidity in December in Moroni?

In Moroni, the average relative humidity in December is 80%.

How much does it rain in December?

In Moroni, Utah, in December, during 3.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

When does it snow the most in Moroni?

The month with the most snowfall is December, when snow falls for 11.5 days and typically aggregates up to 6.46" (164mm) of snow.

How many days does it snow in December?

In December, it is snowing for 11.5 days. Throughout December, 6.46" (164mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

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

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:28 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:12 pm MST.

How many hours of sunshine does Moroni have in December?

The average sunshine duration in December is 5.3h.

What is the month with the lowest UV index?

January, February, April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Moroni, UT

Average temperature in December - Moroni, UT
  • Average high temperature in December: 31.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in December: 13.1°F

The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

Average pressure in December
Moroni, UT

Average pressure in December - Moroni, UT
  • Average pressure in December: 30.19"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Moroni, UT

Average wind speed in December - Moroni, UT
  • Average wind speed in December: 5mph

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 (4.7mph).

Average humidity in December
Moroni, UT

Average humidity in December - Moroni, UT
  • Average humidity in December: 80%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is June (38%).

Average rainfall in December
Moroni, UT

Average rainfall in December - Moroni, UT
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is June (0.39").

Average rainfall days in December
Moroni, UT

Average rainfall days in December - Moroni, UT
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is December (3.3 days).

Average snowfall in December
Moroni, UT

Average snowfall in December - Moroni, UT
  • Average snowfall in December: 6.46"

The month with the highest snowfall is December (6.46").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Moroni, UT

Average snowfall days in December - Moroni, UT
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Moroni, 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: 5h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Moroni, UT

Average sunshine days in December - Moroni, UT
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (15.5 days).

Average UV index in December
Moroni, UT

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, April, October, November and December (UV index 2).

Average cloud cover in December
Moroni, UT

Average cloud cover in December - Moroni, UT
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 12).

Average visibility in December
Moroni, UT

Average visibility in December - Moroni, UT
  • Average visibility in December: 4mi

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

Moroni, Utah, USA

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