December weather forecastSouth Salt Lake, UT
December
Weather in December
The first month of the winter, December, is also a wintry month in South Salt Lake, Utah, with temperature in the range of an average low of 18.5°F (-7.5°C) and an average high of 32°F (0°C).Temperature
With December's arrival, South Salt Lake's weather changes as the average high-temperature falls from a frosty 44.1°F (6.7°C) in November to a wintry 32°F (0°C). An average low-temperature of 18.5°F (-7.5°C) is anticipated throughout the nights during December.Humidity
In December, the average relative humidity is 80%.Rainfall
In South Salt Lake, in December, it is raining for 11 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 120.5 rainfall days, and 18.66" (474mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in South Salt Lake. In South Salt Lake, in December, snow falls for 13 days, with typically accumulated 12.52" (318mm) of snow. In South Salt Lake, during the entire year, snow falls for 62.9 days and aggregates up to 59.69" (1516mm) 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 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 South Salt Lake, the average sunshine in December is 5.8h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, UT
- Average daylight in December: 9h and 18min
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 48min
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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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
South Salt Lake, 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).
