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
Onset of December comes with a temperature decline, the average high falling from a chilly 46.8°F (8.2°C) in November to a wintry 33.8°F (1°C). The nighttime temperature dips to a subzero cold 17.8°F (-7.9°C) on average during December.Humidity
In Mona, the average relative humidity in December is 78%.Rainfall
In Mona, during December, the rain falls for 8.5 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Mona, during the entire year, the rain falls for 99.7 days and collects up to 11.61" (295mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Mona, in December, during 12.1 snowfall days, 7.95" (202mm) of snow is typically accumulated. Throughout the year, there are 56.2 snowfall days, and 40.47" (1028mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:12 pm MST.
Sunshine
In December, the average sunshine is 6.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mona. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mona have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index in Mona?
What is the UV index intensity in December in Mona?
Average temperature in December
Mona, UT
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 17.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Mona, UT
- Average pressure in December: 30.2"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Mona, UT
- Average wind speed in December: 4.8mph
The windiest months (with the highest average wind speed) are April and June (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
Mona, UT
- Average humidity in December: 78%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is June (34%).
Average rainfall in December
Mona, UT
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is March (1.57").
The driest month (with the least rainfall) is June (0.43").
Average rainfall days in December
Mona, UT
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is April (11.7 days).
The month with the least rainy days is June (5.3 days).
Average snowfall in December
Mona, UT
- Average snowfall in December: 7.95"
The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mona, UT
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is December (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mona, UT
- Average daylight in December: 9h and 2min
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 1min
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 48min).
Average sunshine days in December
Mona, UT
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is June (22 days).
The month with the least sunshine days is February (13.9 days).
Average UV index in December
Mona, UT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Mona, UT
- Average cloud cover in December: 37
The months with the most cloud cover are January and December (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Mona, 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).
Mona, Utah, USA
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