December weather forecast
Farmington, UT

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Weather in December

December drapes Farmington Utah, in an immaculate shroud of snow, marking the return of the festive winter season. The year signs off with a generous snowfall of around 9.09" (231mm) across nearly 12 serene, snowy days. Progressively colder than November, December gifts Farmington longer nights with shorter, cold days. The cityscape sparkles with festive lights that dance off the blanket of pristine white snow. The chill of the winter winds and the falling snowflakes set the mood for joyous year-end celebrations.

Temperature

With December's onset, the average high-temperature recedes from November's frosty 45.3°F (7.4°C) to a cold 33.6°F (0.9°C). Throughout December, Farmington witnesses a consistent average low-temperature of 21.9°F (-5.6°C).

Humidity

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

Rainfall

In Farmington, Utah, during December, the rain falls for 11 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, in Farmington, Utah, there are 96.6 rainfall days, and 14.02" (356mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Farmington are January through May, October through December. In Farmington, Utah, in December, during 11.9 snowfall days, 9.09" (231mm) of snow is typically accumulated. In Farmington, during the entire year, snow falls for 53.1 days and aggregates up to 45.12" (1146mm) of snow.

Daylight

The month with the shortest days in Farmington is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:33 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:52 am and sunset at 5:09 pm MST.

Sunshine

The average sunshine in December is 6.1h.

UV index

The months with the lowest UV index in Farmington are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the 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 Farmington?

The average high-temperature, in December, in Farmington, is 33.6°F (0.9°C), while the average low-temperature is 21.9°F (-5.6°C).

What is the average humidity in December in Farmington?

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

How many days does it rain in December in Farmington?

In Farmington, Utah, in December, during 11 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

How many days does it snow in December in Farmington?

In Farmington, in December, during 11.9 snowfall days, 9.09" (231mm) of snow is typically accumulated.

What is the month with the shortest days in Farmington?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Farmington?

The average day length in December in Farmington, Utah, is 9h and 17min.

What time are sunrise and sunset in December in Farmington?

In December, on the first day of the month, sunrise is at 7:33 am and sunset at 5:00 pm. On the last day of the month, in Farmington, Utah, sunrise is at 7:52 am and sunset at 5:09 pm MST.

How many hours of sunshine does Farmington have in December?

In December, the average sunshine duration is 6.1h.

When is the lowest UV index in Farmington?

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

What is the UV index intensity in December in Farmington?

In Farmington, Utah, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Farmington, UT

Average temperature in December - Farmington, UT
  • Average high temperature in December: 33.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in December
Farmington, UT

Average pressure in December - Farmington, 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).

Average wind speed in December
Farmington, UT

Average wind speed in December - Farmington, UT
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is March (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).

Average humidity in December
Farmington, UT

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

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (39%).

Average rainfall in December
Farmington, UT

Average rainfall in December - Farmington, UT
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is February (2.13").
The driest month (with the least rainfall) is August (0.16").

Average rainfall days in December
Farmington, UT

Average rainfall days in December - Farmington, UT
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.3 days).

Average snowfall in December
Farmington, UT

Average snowfall in December - Farmington, UT
  • Average snowfall in December: 9.09"

The month with the highest snowfall is January (11.22").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Farmington, UT

Average snowfall days in December - Farmington, UT
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 6h and 1min

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).

Average sunshine days in December
Farmington, UT

Average sunshine days in December - Farmington, UT
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (11.4 days).

Average UV index in December
Farmington, UT

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

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

Average cloud cover in December
Farmington, UT

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

The months with the most cloud cover are January and February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in December
Farmington, UT

Average visibility in December - Farmington, 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).

Farmington, Utah, USA

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