December weather forecast
Layton, UT

Weather in December

The first month of the winter, December, is also a wintry month in Layton, Utah, with an average temperature fluctuating between 23.5°F (-4.7°C) and 34°F (1.1°C).

Temperature

In December, the average high-temperature drops from a frosty 45.5°F (7.5°C) in November to a cold 34°F (1.1°C). In Layton, in December, the average low-temperature is 23.5°F (-4.7°C).

Humidity

The average relative humidity in December in Layton is 77%.

Rainfall

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

Snowfall

January through May, September through December are months with snowfall. In Layton, 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 17min of daylight, December has the shortest days of the year in Layton.
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 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 in Layton. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Layton?

In December, the average high-temperature is 34°F (1.1°C), and the average low-temperature is 23.5°F (-4.7°C).

What is the average humidity in December in Layton?

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

How much does it rain in Layton in December?

In December, the rain falls for 7.8 days. Throughout December, 1.5" (38mm) of precipitation is accumulated.

How many days does it snow in December in Layton?

In Layton, 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?

With an average of 9h and 17min of daylight, December has the shortest days of the year.

How many hours of daylight does Layton have in December?

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

What time are sunrise and sunset in December in Layton?

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 Layton, Utah, sunrise is at 7:52 am and sunset at 5:09 pm MST.

How long on average sun shines in December in Layton?

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

What is the month with the lowest UV index in Layton?

The months with the lowest UV index in Layton, Utah, 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 Layton, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
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 17min

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 17min).

  • Average sunshine in December: 6h and 6min

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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