December weather forecast
Whiterocks, UT

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Weather in December

December, the first month of the winter in Whiterocks, is also a subzero cold month, with an average temperature ranging between min 15.1°F (-9.4°C) and max 31.1°F (-0.5°C).

Temperature

The arrival of December corresponds with a shift in temperature, down from a chilly 44.1°F (6.7°C) in November to a subzero cold 31.1°F (-0.5°C). In Whiterocks, an average low-temperature of 15.1°F (-9.4°C) is recorded during December nights.

Humidity

In December, the average relative humidity is 74%.

Rainfall

In Whiterocks, Utah, during December, the rain falls for 3.4 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, there are 74.4 rainfall days, and 5.94" (151mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Whiterocks, Utah. In Whiterocks, in December, during 5.1 snowfall days, 2.56" (65mm) of snow is typically accumulated. Throughout the year, in Whiterocks, there are 30.9 snowfall days, and 14.76" (375mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Whiterocks, Utah.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:53 pm. On the last day of December, in Whiterocks, Utah, sunrise is at 7:42 am and sunset at 5:03 pm MST.

Sunshine

In December, the average sunshine in Whiterocks is 6.8h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Whiterocks. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

How cold is it in Whiterocks in December?

The high-temperature, in December, in Whiterocks, records 31.1°F (-0.5°C), while the low-temperature is 15.1°F (-9.4°C).

What is the average humidity in December in Whiterocks?

In December, the average relative humidity in Whiterocks, Utah, is 74%.

How much does it rain in Whiterocks in December?

In Whiterocks, in December, it is raining for 3.4 days, with typically 0.35" (9mm) of accumulated precipitation.

How much does it snow in Whiterocks in December?

In Whiterocks, Utah, in December, during 5.1 snowfall days, 2.56" (65mm) of snow is typically accumulated.

What is the month with the shortest days in Whiterocks?

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

How many hours of daylight does Whiterocks have in December?

In Whiterocks, the average day length in December is 9h and 20min.

When are sunrise and sunset in December in Whiterocks?

On the first day of December in Whiterocks, sunrise is at 7:24 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:03 pm MST.

How many hours of sunshine does Whiterocks have in December?

The average sunshine duration in December is 6.8h.

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

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Whiterocks.

How high is the UV index in December in Whiterocks?

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

Average temperature in December - Whiterocks, UT
  • Average high temperature in December: 31.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 15.1°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

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Average pressure in December
Whiterocks, UT

Average pressure in December - Whiterocks, 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 (29.86"Hg).

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Average wind speed in December
Whiterocks, UT

Average wind speed in December - Whiterocks, UT
  • Average wind speed in December: 4.1mph

The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is January (3.8mph).

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Average humidity in December
Whiterocks, UT

Average humidity in December - Whiterocks, UT
  • Average humidity in December: 74%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (31%).

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Average rainfall in December
Whiterocks, UT

Average rainfall in December - Whiterocks, UT
  • Average rainfall in December: 0.35"

The wettest months (with the highest rainfall) are March and May (0.67").
The driest month (with the least rainfall) is November (0.24").

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Average rainfall days in December
Whiterocks, UT

Average rainfall days in December - Whiterocks, UT
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is July (9.4 days).
The month with the least rainy days is November (2.3 days).

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Average snowfall in December
Whiterocks, UT

Average snowfall in December - Whiterocks, UT
  • Average snowfall in December: 2.56"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Whiterocks, UT

Average snowfall days in December - Whiterocks, UT
  • Average snowfall days in December: 5.1 days

The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Whiterocks, 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: 6h and 5min

The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).

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Average sunshine days in December
Whiterocks, UT

Average sunshine days in December - Whiterocks, UT
  • Average sunshine days in December: 24.1 days

The month with the most sunshine days is November (25.8 days).
The month with the least sunshine days is July (16.8 days).

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Average UV index in December
Whiterocks, UT

Average UV index in December - Whiterocks, 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, October, November and December (UV index 2).

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Average cloud cover in December
Whiterocks, UT

Average cloud cover in December - Whiterocks, UT
  • Average cloud cover in December: 25

The month with the most cloud cover is February (Cloud cover 27).
The months with the least cloud cover are August and September (Cloud cover 11).

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Average visibility in December
Whiterocks, UT

Average visibility in December - Whiterocks, UT
  • Average visibility in December: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Whiterocks, Utah, USA

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