December weather forecastWellington, UT
December
Weather in December
December, the first month of the winter in Wellington, is also a subzero cold month, with an average temperature fluctuating between 15.6°F (-9.1°C) and 31.6°F (-0.2°C).Temperature
In Wellington, January and December are characterised by the lowest temperatures, recording an average high of 31.6°F (-0.2°C).Humidity
In December, the average relative humidity is 75%.Rainfall
In Wellington, in December, during 6.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 95.3 rainfall days, and 8.66" (220mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 11.5 days and typically aggregates up to 7.87" (200mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 4:59 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:09 pm MST.
Sunshine
In December, the average sunshine in Wellington is 6.6h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wellington, UT
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The months with the lowest average high temperature are January and December (31.6°F).
- Average low temperature in December: 15.6°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Wellington, UT
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Wellington, UT
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in December
Wellington, UT
- Average humidity in December: 75%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (32%).
Average rainfall in December
Wellington, UT
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is March (1.14").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Wellington, UT
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is April (12.1 days).
The month with the least rainy days is November (5.1 days).
Average snowfall in December
Wellington, UT
- Average snowfall in December: 7.87"
The month with the highest snowfall is December (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Wellington, UT
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wellington, UT
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 6h and 36min
The months with the most sunshine are June and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in December
Wellington, UT
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is June (22.1 days).
The month with the least sunshine days is April (13 days).
Average UV index in December
Wellington, UT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Wellington, UT
- Average cloud cover in December: 30
The month with the most cloud cover is January (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 11).
Average visibility in December
Wellington, 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).





