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
January and December, when the average high-temperature reaches 28.9°F (-1.7°C), are the coldest months.Humidity
In Altamont, Utah, the average relative humidity in December is 78%.Rainfall
In December, the rain falls for 9.1 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. Throughout the year, in Altamont, there are 124.1 rainfall days, and 12.87" (327mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Altamont, in December, snow falls for 11.3 days, with typically accumulated 6.97" (177mm) of snow. Throughout the year, in Altamont, there are 55.2 snowfall days, and 33.5" (851mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Altamont.On the first day of the month, sunrise is at 7:25 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:05 pm MST.
Sunshine
The average sunshine in December is 6.6h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
What time of the year is the coldest in Altamont?
How cold is December in Altamont?
What is the average humidity in December in Altamont?
How many days does it rain in December in Altamont?
How much does it snow in Altamont in December?
What is the month with the shortest days in Altamont?
What is the average length of the day in December in Altamont?
When is the sunrise / sunset in December in Altamont?
How many hours of sunshine does Altamont have in December?
What are the months with the lowest UV index in Altamont?
How high is the UV index in December in Altamont?
Average temperature in December
Altamont, UT
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The months with the lowest average high temperature are January and December (28.9°F).
- Average low temperature in December: 12.9°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 (11.7°F).
Average pressure in December
Altamont, UT
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Altamont, UT
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Altamont, UT
- Average humidity in December: 78%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (36%).
Average rainfall in December
Altamont, UT
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (1.65").
The driest month (with the least rainfall) is November (0.71").
Average rainfall days in December
Altamont, UT
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (6.2 days).
Average snowfall in December
Altamont, UT
- Average snowfall in December: 6.97"
The month with the highest snowfall is February (7.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Altamont, UT
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Altamont, 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 24min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Altamont, UT
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in December
Altamont, UT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Altamont, UT
- Average cloud cover in December: 30
The month with the most cloud cover is February (Cloud cover 33).
The months with the least cloud cover are June and September (Cloud cover 13).
Average visibility in December
Altamont, UT
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Altamont, Utah, USA
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