December weather forecast
Layton, UT

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Weather in December

December welcomes the peak of winter in Layton, Utah. The city experiences average temperatures from 23.5°F (-4.7°C) to 34°F (1.1°C), along with a significant snowfall of 8.78" (223mm). As the temperatures plummet, the city brims with holiday spirit in anticipation of Christmas and New Year celebrations. December, with its snow-clad picturesque landscapes and festive atmosphere, brings the year to a magical end.

Temperature

December comes with a decrease in the average high-temperature, falling from a chilly 45.5°F (7.5°C) in November to a wintry 34°F (1.1°C). December's average low-temperature reading in Layton settles at a subzero cold 23.5°F (-4.7°C).

Humidity

In Layton, the average relative humidity in December is 77%.

Rainfall

In Layton, in December, it is raining for 7.8 days, with typically 1.5" (38mm) of accumulated precipitation. In Layton, during the entire year, the rain falls for 98.9 days and collects up to 13.58" (345mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Layton, in December, snow falls for 11.3 days, with typically accumulated 8.78" (223mm) of snow. In Layton, during the entire year, snow falls for 54.4 days and aggregates up to 44.84" (1139mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Layton.
On the first day of December, sunrise is at 7:34 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.

Sunshine

In December, the average sunshine in Layton is 6.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

How cold is December in Layton?

Layton in December has an average high-temperature of 34°F (1.1°C) and an average low-temperature of 23.5°F (-4.7°C).

What is the average humidity in December in Layton?

In Layton, Utah, the average relative humidity in December is 77%.

How many days does it rain in December in Layton?

In Layton, Utah, during December, the rain falls for 7.8 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How many days does it snow in December in Layton?

In Layton, Utah, in December, during 11.3 snowfall days, 8.78" (223mm) of snow is typically accumulated.

What is the month with the shortest days in Layton?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Layton have in December?

In Layton, the average day length in December is 9h and 17min.

When are sunrise and sunset in December in Layton?

On the first day of December in Layton, sunrise is at 7:34 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 Layton have in December?

In December, the average sunshine duration in Layton is 6.1h.

What are the months with the lowest UV index in Layton?

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

How high is the UV index in December in Layton?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Layton, UT

Average temperature in December - Layton, UT
  • Average high temperature in December: 34°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 23.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in December
Layton, UT

Average pressure in December - Layton, UT
  • Average pressure in December: 30.23"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Layton, UT

Average wind speed in December - Layton, UT
  • Average wind speed in December: 5.7mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in December
Layton, UT

Average humidity in December - Layton, UT
  • Average humidity in December: 77%

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

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Average rainfall in December
Layton, UT

Average rainfall in December - Layton, UT
  • Average rainfall in December: 1.5"

The wettest months (with the highest rainfall) are January and February (1.61").
The driest months (with the least rainfall) are July and August (0.43").

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Average rainfall days in December
Layton, UT

Average rainfall days in December - Layton, UT
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is April (12.3 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in December
Layton, UT

Average snowfall in December - Layton, UT
  • Average snowfall in December: 8.78"

The month with the highest snowfall is January (11.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Layton, UT

Average snowfall days in December - Layton, UT
  • Average snowfall days in December: 11.3 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Layton, 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: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in December
Layton, UT

Average sunshine days in December - Layton, UT
  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is February (12.7 days).

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Average UV index in December
Layton, UT

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

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

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Average cloud cover in December
Layton, UT

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

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).

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Average visibility in December
Layton, UT

Average visibility in December - Layton, 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).

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Layton, Utah, USA

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