December weather forecastKoosharem, UT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Koosharem, Utah, with temperature in the range of an average low of 14°F (-10°C) and an average high of 30.4°F (-0.9°C).Temperature
A moderate decline in the average high-temperature is seen during December, decreasing from a wintry 41.4°F (5.2°C) in November to a subzero cold 30.4°F (-0.9°C). An average minimum temperature of 14°F (-10°C) is recorded during the month of December.Humidity
In December, the average relative humidity is 77%.Rainfall
In December, the rain falls for 2.9 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 71.2 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Koosharem, in December, during 11.1 snowfall days, 5.98" (152mm) of snow is typically accumulated. Throughout the year, there are 64.4 snowfall days, and 44.17" (1122mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:26 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:16 pm MST.
Sunshine
In December, the average sunshine is 6.1h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 in December translates into these instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Koosharem, UT
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 14°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Koosharem, UT
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Koosharem, UT
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in December
Koosharem, 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
Koosharem, UT
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (1.26").
The driest month (with the least rainfall) is June (0.43").
Average rainfall days in December
Koosharem, UT
- Average rainfall days in December: 2.9 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is November (1.7 days).
Average snowfall in December
Koosharem, UT
- Average snowfall in December: 5.98"
The month with the highest snowfall is March (8.07").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Koosharem, UT
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is December (11.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Koosharem, UT
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in December
Koosharem, UT
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in December
Koosharem, 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
Koosharem, UT
- Average cloud cover in December: 36
The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 12).
Average visibility in December
Koosharem, 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).
