December weather forecastMendon, UT
December
Weather in December
December, the first month of the winter in Mendon, is also a subzero cold month, with an average temperature ranging between max 28.8°F (-1.8°C) and min 15.3°F (-9.3°C).Temperature
The yearly lowest temperatures occur in January and December, averaging a high-temperature of 28.8°F (-1.8°C).Humidity
In Mendon, the average relative humidity in December is 85%.Rainfall
In Mendon, in December, it is raining for 11 days, with typically 2.05" (52mm) of accumulated precipitation. In Mendon, Utah, during the entire year, the rain falls for 122.8 days and collects up to 16.89" (429mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 16.3 days. Throughout December, 12.91" (328mm) of snow is accumulated. Throughout the year, in Mendon, there are 77.8 snowfall days, and 58.86" (1495mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:58 pm. On the last day of December, in Mendon, sunrise is at 7:54 am and sunset at 5:07 pm MST.
Sunshine
The average sunshine in December in Mendon, Utah, is 5.4h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mendon, UT
- Average high temperature in December: 28.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The months with the lowest average high temperature are January and December (28.8°F).
- Average low temperature in December: 15.3°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in December
Mendon, UT
- Average pressure in December: 30.24"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Mendon, UT
- Average wind speed in December: 4.4mph
The windiest months (with the highest average wind speed) are April and June (5.8mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in December
Mendon, UT
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Mendon, UT
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is January (2.36").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
Mendon, UT
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (6 days).
Average snowfall in December
Mendon, UT
- Average snowfall in December: 12.91"
The month with the highest snowfall is January (16.18").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Mendon, UT
- Average snowfall days in December: 16.3 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Mendon, UT
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Mendon, UT
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is June (21.6 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Mendon, UT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Mendon, UT
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Mendon, UT
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
