December weather forecast
South Jordan, UT

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Weather in December

Finally, rounding up the year, December lands South Jordan right into the winter season. With an average snowfall of 9.49" (241mm), December introduces significant signs of winter. The climate during December becomes the second coldest throughout the year after January. The visibility wavers to around 5 miles due to the weather conditions. On the whole, the South Jordan city in December is a wintery scene, complete with snowfall, chilling temperatures, and the joys of the holiday season.

Temperature

The transition into December in South Jordan indicates a reduction in the average high-temperature, down to a cold 33.1°F (0.6°C) from November's frosty 45.3°F (7.4°C). South Jordan's nights in December experience an average temperature drop to a freezing cold 19°F (-7.2°C).

Humidity

The average relative humidity in December in South Jordan, Utah, is 80%.

Rainfall

The wettest months are February, March and December, with an average 2.05" (52mm) of rainfall.

Snowfall

January through May, October through December are months with snowfall in South Jordan, Utah. In December, in South Jordan, it is snowing for 12.2 days. Throughout December, 9.49" (241mm) of snow is accumulated. Throughout the year, in South Jordan, there are 54.7 snowfall days, and 43.35" (1101mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in South Jordan.
On the first day of December in South Jordan, sunrise is at 7:32 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:11 pm MST.

Sunshine

In South Jordan, the average sunshine in December is 5.7h.

UV index

December is the month with the lowest UV index in South Jordan, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

How cold is December in South Jordan?

The high-temperature, in December, in South Jordan, is 33.1°F (0.6°C), while the low-temperature averages to 19°F (-7.2°C).

What is the average humidity in December in South Jordan?

In December, the average relative humidity in South Jordan is 80%.

What is the wettest month in South Jordan?

The wettest months in South Jordan, Utah, are February, March and December, with an average 2.05" (52mm) of rainfall.

How much does it rain in South Jordan in December?

In South Jordan, Utah, in December, during 12 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

How much does it snow in South Jordan in December?

In South Jordan, Utah, in December, during 12.2 snowfall days, 9.49" (241mm) of snow is typically accumulated.

What is the month with the shortest days in South Jordan?

The month with the shortest days in South Jordan is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December in South Jordan?

The average day length in December in South Jordan, Utah, is 9h and 20min.

When are sunrise and sunset in December in South Jordan?

On the first day of December in South Jordan, sunrise is at 7:32 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:11 pm MST.

How long on average sun shines in December in South Jordan?

In South Jordan, the average sunshine duration in December is 5.7h.

What is the month with the lowest UV index in South Jordan?

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

What is the UV index intensity in December in South Jordan?

In December, the average daily maximum UV index in South Jordan, Utah, is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
South Jordan, UT

Average temperature in December - South Jordan, UT
  • Average high temperature in December: 33.1°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in December: 19°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in December
South Jordan, UT

Average pressure in December - South Jordan, 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).

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Average wind speed in December
South Jordan, UT

Average wind speed in December - South Jordan, UT
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

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Average humidity in December
South Jordan, UT

Average humidity in December - South Jordan, 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 (37%).

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Average rainfall in December
South Jordan, UT

Average rainfall in December - South Jordan, UT
  • Average rainfall in December: 2.05"

The wettest months (with the highest rainfall) are February, March and December (2.05").
The driest month (with the least rainfall) is June (0.63").

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Average rainfall days in December
South Jordan, UT

Average rainfall days in December - South Jordan, UT
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is April (13.7 days).
The month with the least rainy days is June (7 days).

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Average snowfall in December
South Jordan, UT

Average snowfall in December - South Jordan, UT
  • Average snowfall in December: 9.49"

The month with the highest snowfall is January (11.18").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
South Jordan, UT

Average snowfall days in December - South Jordan, UT
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (13.3 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
South Jordan, UT

Average daylight in December / Average sunshine in December - South Jordan, 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 24min).

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Average sunshine days in December
South Jordan, UT

Average sunshine days in December - South Jordan, UT
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is June (20.3 days).
The month with the least sunshine days is February (11.2 days).

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Average UV index in December
South Jordan, UT

Average UV index in December - South Jordan, UT
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
South Jordan, UT

Average cloud cover in December - South Jordan, UT
  • Average cloud cover in December: 40

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

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Average visibility in December
South Jordan, UT

Average visibility in December - South Jordan, 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).

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South Jordan, Utah, USA

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