December weather forecast
East Millcreek, UT

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Weather in December

The first month of the winter, December, is still a cold month in East Millcreek, Utah, with an average temperature fluctuating between 18.5°F (-7.5°C) and 32°F (0°C).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 44.1°F (6.7°C) to an icy 32°F (0°C). East Millcreek witnesses an average low-temperature of 18.5°F (-7.5°C) throughout the month of December.

Humidity

In East Millcreek, the average relative humidity in December is 80%.

Rainfall

In East Millcreek, during December, the rain falls for 11 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 120.5 rainfall days, and 18.66" (474mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In East Millcreek, in December, during 13 snowfall days, 12.52" (318mm) of snow is typically accumulated. Throughout the year, there are 62.9 snowfall days, and 59.69" (1516mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in East Millcreek.
On the first day of the month, sunrise is at 7:32 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:51 am and sunset at 5:10 pm MST.

Sunshine

In December, the average sunshine is 5.8h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 1 in December translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature, in December, in East Millcreek, records 32°F (0°C), while the low-temperature is 18.5°F (-7.5°C).

What is the average humidity in December?

In December, the average relative humidity in East Millcreek is 80%.

How many days does it rain in December?

In East Millcreek, in December, during 11 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 13 days. Throughout December, 12.52" (318mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In East Millcreek, the average day length in December is 9h and 19min.

When is the sunrise / sunset in December?

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 7:51 am and sunset at 5:10 pm MST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.8h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In East Millcreek, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average max. wind speed
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
East Millcreek, UT

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

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in December: 18.5°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in December
East Millcreek, UT

Average pressure in December - East Millcreek, 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
East Millcreek, UT

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

The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).

Average humidity in December
East Millcreek, UT

Average humidity in December - East Millcreek, UT
  • Average humidity in December: 80%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (38%).

Average rainfall in December
East Millcreek, UT

Average rainfall in December - East Millcreek, UT
  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is February (2.4").
The driest month (with the least rainfall) is June (0.67").

Average rainfall days in December
East Millcreek, UT

Average rainfall days in December - East Millcreek, UT
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is April (13.9 days).
The month with the least rainy days is June (6.9 days).

Average snowfall in December
East Millcreek, UT

Average snowfall in December - East Millcreek, UT
  • Average snowfall in December: 12.52"

The month with the highest snowfall is January (14.25").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
East Millcreek, UT

Average snowfall days in December - East Millcreek, UT
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
East Millcreek, UT

Average daylight in December / Average sunshine in December - East Millcreek, 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 5min

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 30min).

Average sunshine days in December
East Millcreek, UT

Average sunshine days in December - East Millcreek, UT
  • Average sunshine days in December: 14.6 days

The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (10.5 days).

Average UV index in December
East Millcreek, UT

Average UV index in December - East Millcreek, 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
East Millcreek, UT

Average cloud cover in December - East Millcreek, UT
  • Average cloud cover in December: 39

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in December
East Millcreek, UT

Average visibility in December - East Millcreek, 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).

East Millcreek, Utah, USA

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