December weather forecast
Granite, UT

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Weather in December

December, the first month of the winter in Granite, is still a cold month, with an average temperature ranging between max 32°F (0°C) and min 17.6°F (-8°C).

Temperature

During January and December, Granite experiences its lowest temperatures, averaging a high-temperature of 32°F (0°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 9.3 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. In Granite, Utah, during the entire year, the rain falls for 99.8 days and collects up to 8.58" (218mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Granite, in December, during 12.5 snowfall days, 5.63" (143mm) of snow is typically accumulated. Throughout the year, there are 57.3 snowfall days, and 27.2" (691mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:32 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:10 pm MST.

Sunshine

The average sunshine in December is 5.7h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

Granite experiences its coldest period in January and December, averaging a high-temperature of 32°F (0°C).

How cold is December?

An average high-temperature, in December, in Granite, is 32°F (0°C) and the average low-temperature is 17.6°F (-8°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How many days does it rain in December?

In Granite, in December, it is raining for 9.3 days, with typically 0.79" (20mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 12.5 days. Throughout December, 5.63" (143mm) of snow is accumulated.

What is the month with the shortest days?

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?

The average day length in December is 9h and 20min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:32 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:10 pm MST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.7h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Granite, UT

Average temperature in December - Granite, UT
  • Average high temperature in December: 32°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The months with the lowest average high temperature are January and December (32°F).

  • Average low temperature in December: 17.6°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Granite, UT

Average pressure in December - Granite, UT
  • Average pressure in December: 30.22"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Granite, UT

Average wind speed in December - Granite, UT
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is March (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).

Average humidity in December
Granite, UT

Average humidity in December - Granite, UT
  • Average humidity in December: 81%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is July (38%).

Average rainfall in December
Granite, UT

Average rainfall in December - Granite, UT
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is February (1.1").
The driest month (with the least rainfall) is June (0.35").

Average rainfall days in December
Granite, UT

Average rainfall days in December - Granite, UT
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is April (12 days).
The month with the least rainy days is June (5.1 days).

Average snowfall in December
Granite, UT

Average snowfall in December - Granite, UT
  • Average snowfall in December: 5.63"

The month with the highest snowfall is February (6.97").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Granite, UT

Average snowfall days in December - Granite, UT
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in December
Granite, UT

Average sunshine days in December - Granite, UT
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is June (21.6 days).
The month with the least sunshine days is February (12.7 days).

Average UV index in December
Granite, UT

Average UV index in December - Granite, UT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Granite, UT

Average cloud cover in December - Granite, UT
  • Average cloud cover in December: 41

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in December
Granite, UT

Average visibility in December - Granite, UT
  • Average visibility in December: 5mi

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

Granite, Utah, USA

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