Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As November transitions to December, the average high-temperature in West Valley City, Utah, falls from a frosty 46.2°F (7.9°C) to an icy 34.2°F (1.2°C). The average temperature drops to a subzero cold 21.9°F (-5.6°C) during the night in the month of December.Humidity
The average relative humidity in December is 78%.Rainfall
The month with the most rainfall is December, when the rain falls for 9 days and typically aggregates up to 1.61" (41mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In West Valley City, Utah, in December, snow falls for 10 days, with typically accumulated 7.28" (185mm) of snow. Throughout the year, in West Valley City, Utah, there are 44.4 snowfall days, and 31.42" (798mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in West Valley City.On the first day of December in West Valley City, sunrise is at 7:33 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:10 pm MST.
Sunshine
In December, the average sunshine is 6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in West Valley City. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is it in West Valley City in December?
What is the average humidity in December in West Valley City?
What is the wettest month in West Valley City?
How much does it rain in West Valley City in December?
How much does it snow in West Valley City in December?
What is the month with the shortest days in West Valley City?
What is the average length of the day in December in West Valley City?
What time are sunrise and sunset in December in West Valley City?
How many hours of sunshine does West Valley City have in December?
What are the months with the lowest UV index in West Valley City?
How high is the UV index in December in West Valley City?
Average temperature in December
West Valley City, UT
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in December: 21.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
West Valley City, 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 (29.87"Hg).
Average wind speed in December
West Valley City, UT
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in December
West Valley City, UT
- Average humidity in December: 78%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (36%).
Average rainfall in December
West Valley City, UT
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is December (1.61").
The driest month (with the least rainfall) is June (0.35").
Average rainfall days in December
West Valley City, UT
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is April (12.2 days).
The month with the least rainy days is June (4.6 days).
Average snowfall in December
West Valley City, UT
- Average snowfall in December: 7.28"
The month with the highest snowfall is January (8.15").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
West Valley City, UT
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
West Valley 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: 6h and 0min
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 36min).
Average sunshine days in December
West Valley City, UT
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is June (23.6 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in December
West Valley City, UT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
West Valley City, UT
- Average cloud cover in December: 37
The months with the most cloud cover are January and February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
West Valley City, UT
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
West Valley City, Utah, USA
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