December weather forecastMayfield, UT
December
Weather in December
December, the first month of the winter in Mayfield, is also an icy month, with temperature in the range of an average low of 17.2°F (-8.2°C) and an average high of 33.6°F (0.9°C).Temperature
The onset of December is marked by a decrease in temperature, transitioning from a frosty 45.5°F (7.5°C) in November to an icy 33.6°F (0.9°C). In Mayfield, an average low-temperature of 17.2°F (-8.2°C) is recorded during December nights.Humidity
In Mayfield, the average relative humidity in December is 77%.Rainfall
In Mayfield, in December, during 9.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in Mayfield, there are 108.6 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 12.7 days and typically aggregates up to 8.62" (219mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 5:04 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:14 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. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Boost your sun resistance with garments that are densely woven yet spacious. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mayfield, UT
- Average high temperature in December: 33.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 17.2°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Mayfield, UT
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Mayfield, UT
- Average wind speed in December: 4.9mph
The windiest months (with the highest average wind speed) are April and June (6.6mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in December
Mayfield, UT
- Average humidity in December: 77%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (32%).
Average rainfall in December
Mayfield, UT
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is June (0.35").
Average rainfall days in December
Mayfield, UT
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is April (12.9 days).
The month with the least rainy days is June (4.5 days).
Average snowfall in December
Mayfield, UT
- Average snowfall in December: 8.62"
The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mayfield, UT
- Average snowfall days in December: 12.7 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mayfield, UT
- Average daylight in December: 9h and 30min
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 30min).
- 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 54min).
Average sunshine days in December
Mayfield, UT
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is June (23 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in December
Mayfield, 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
Mayfield, UT
- Average cloud cover in December: 37
The months with the most cloud cover are January and December (Cloud cover 37).
The months with the least cloud cover are August and September (Cloud cover 10).
Average visibility in December
Mayfield, 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).





