December weather forecast
Heber City, UT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Heber City, Utah, with an average temperature fluctuating between 10.8°F (-11.8°C) and 27.7°F (-2.4°C).

Temperature

December is the month when Heber City experiences its coldest temperatures, averaging a high of 27.7°F (-2.4°C) and a low of 10.8°F (-11.8°C).

Humidity

In December, the average relative humidity is 85%.

Rainfall

The wettest months in Heber City are February and December, with an average 2.52" (64mm) of rainfall.

Snowfall

January through June, September through December are months with snowfall in Heber City. December is the month with the most snowfall in Heber City. Snow falls for 16.4 days and accumulates 18.35" (466mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Heber City, Utah, sunrise is at 7:30 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:09 pm MST.

Sunshine

In Heber City, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What is the coldest time of year in Heber City?

The coldest period in Heber City, Utah, is December, when temperatures fluctuate between an average high of 27.7°F (-2.4°C) and a low of 10.8°F (-11.8°C).

How cold is it in Heber City in December?

The average high-temperature, in December, in Heber City, is 27.7°F (-2.4°C), while the average low-temperature is 10.8°F (-11.8°C).

What is the average humidity in December in Heber City?

The average relative humidity in December is 85%.

What is the rainiest month in Heber City?

The wettest months in Heber City are February and December, with an average 2.52" (64mm) of rainfall.

How many days does it rain in December in Heber City?

In Heber City, Utah, in December, it is raining for 8.2 days, with typically 2.52" (64mm) of accumulated precipitation.

What is the snowiest month in Heber City?

The month with the most snowfall in Heber City is December, when snow falls for 16.4 days and typically aggregates up to 18.35" (466mm) of snow.

How much does it snow in Heber City in December?

In Heber City, Utah, in December, during 16.4 snowfall days, 18.35" (466mm) of snow is typically accumulated.

What is the month with the shortest days in Heber City?

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

What is the average length of the day in December in Heber City?

In December, the average day length in Heber City, Utah, is 9h and 20min.

What time are sunrise and sunset in December in Heber City?

On the first day of December in Heber City, Utah, sunrise is at 7:30 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:09 pm MST.

How long on average sun shines in December in Heber City?

The average sunshine duration in December is 5.1h.

What is the month with the lowest UV index in Heber City?

The months with the lowest UV index in Heber City, Utah, are January through April, October through December, with an average maximum UV index of 2.

What is the UV index reading in December in Heber City?

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

Average temperature in December - Heber City, UT
  • Average high temperature in December: 27.7°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (27.7°F).

  • Average low temperature in December: 10.8°F

The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

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Average pressure in December
Heber City, UT

Average pressure in December - Heber City, UT
  • Average pressure in December: 30.21"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Heber City, UT

Average wind speed in December - Heber City, UT
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is June (6mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).

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Average humidity in December
Heber City, UT

Average humidity in December - Heber City, UT
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are July and August (45%).

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Average rainfall in December
Heber City, UT

Average rainfall in December - Heber City, UT
  • Average rainfall in December: 2.52"

The wettest months (with the highest rainfall) are February and December (2.52").
The driest months (with the least rainfall) are July and August (0.51").

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Average rainfall days in December
Heber City, UT

Average rainfall days in December - Heber City, UT
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is April (13.3 days).
The month with the least rainy days is June (5.3 days).

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Average snowfall in December
Heber City, UT

Average snowfall in December - Heber City, UT
  • Average snowfall in December: 18.35"

The month with the highest snowfall is December (18.35").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Heber City, UT

Average snowfall days in December - Heber City, UT
  • Average snowfall days in December: 16.4 days

The month with the highest number of snowfall days is February (17.4 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Heber City, UT

Average daylight in December / Average sunshine in December - Heber City, 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 1min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in December
Heber City, UT

Average sunshine days in December - Heber City, UT
  • Average sunshine days in December: 13 days

The month with the most sunshine days is June (24.1 days).
The month with the least sunshine days is February (9.3 days).

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Average UV index in December
Heber City, UT

Average UV index in December - Heber City, UT
  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in December
Heber City, UT

Average cloud cover in December - Heber City, UT
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 13).

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Average visibility in December
Heber City, UT

Average visibility in December - Heber City, UT
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Heber City, Utah, USA

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