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

As November transitions into December, Farmington sees a drop in the average high-temperature, transitioning from a frosty 45.3°F (7.4°C) to an icy 33.6°F (0.9°C). In December, Farmington reports a consistent average low-temperature of 21.9°F (-5.6°C) during the nights.

Humidity

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

Rainfall

In Farmington, in December, it is raining for 11 days, with typically 1.97" (50mm) of accumulated precipitation. In Farmington, during the entire year, the rain falls for 96.6 days and collects up to 14.02" (356mm) of precipitation.

Snowfall

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

Daylight

December has the shortest days of the year, 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

In Farmington, the average sunshine in December 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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

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?

The average relative humidity in December in Farmington is 78%.

How much does it rain in December?

In December, in Farmington, the rain falls for 11 days. Throughout December, 1.97" (50mm) of precipitation is accumulated.

How many days does it snow in December?

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?

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

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

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, 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 in Farmington is 6.1h.

What is the month with the lowest UV index?

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

How high is the UV index in December in Farmington?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents 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
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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