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
With an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 9.3°F (-12.6°C), December is the coldest month.Humidity
The average relative humidity in December is 78%.Rainfall
In Altonah, in December, during 5.7 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Altonah, there are 98.4 rainfall days, and 11.54" (293mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Altonah, Utah. In Altonah, during December, snow falls for 11.6 days and regularly aggregates up to 5" (127mm) of snow. In Altonah, during the entire year, snow falls for 87 days and aggregates up to 51.73" (1314mm) of snow.Daylight
The month with the shortest days in Altonah is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:25 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:04 pm MST.
Sunshine
In December, the average sunshine in Altonah is 6.4h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Altonah. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What month is the coldest in Altonah?
How cold is December in Altonah?
What is the average humidity in December in Altonah?
How many days does it rain in December in Altonah?
How much does it snow in Altonah in December?
What is the month with the shortest days in Altonah?
How many hours of daylight does Altonah have in December?
What time are sunrise and sunset in December in Altonah?
How many hours of sunshine does Altonah have in December?
What is the month with the lowest UV index in Altonah?
What is the UV index reading in December in Altonah?
Average temperature in December
Altonah, UT
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 9.3°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in December
Altonah, UT
- Average pressure in December: 30.22"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Altonah, UT
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Altonah, UT
- Average humidity in December: 78%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June and July (44%).
Average rainfall in December
Altonah, UT
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Altonah, UT
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in December
Altonah, UT
- Average snowfall in December: 5"
The month with the highest snowfall is March (10.24").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Altonah, UT
- Average snowfall days in December: 11.6 days
The month with the highest number of snowfall days is March (13.1 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Altonah, 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in December
Altonah, UT
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Altonah, UT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Altonah, UT
- Average cloud cover in December: 33
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 13).
Average visibility in December
Altonah, 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).
Altonah, Utah, USA
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