December weather forecastTropic, UT
December
Weather in December
The first month of the winter, December, is also an icy month in Tropic, Utah, with temperature in the range of an average high of 34.3°F (1.3°C) and an average low of 17.2°F (-8.2°C).Temperature
December involves a decrease in temperature, down from a chilly 45.9°F (7.7°C) in November to an icy 34.3°F (1.3°C). Tropic encounters a steady low-temperature average of 17.2°F (-8.2°C) throughout the month of December.Humidity
The average relative humidity in December is 72%.Rainfall
In Tropic, during December, the rain falls for 3.4 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Tropic, during the entire year, the rain falls for 64.4 days and collects up to 7.99" (203mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 8.5 days. Throughout December, 5.31" (135mm) of snow is accumulated. In Tropic, during the entire year, snow falls for 40.5 days and aggregates up to 29.09" (739mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:25 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:20 pm MST.
Sunshine
In December, the average sunshine in Tropic is 6.7h.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 minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. 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
Tropic, UT
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in December: 17.2°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in December
Tropic, UT
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Tropic, UT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in December
Tropic, UT
- Average humidity in December: 72%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is June (27%).
Average rainfall in December
Tropic, UT
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Tropic, UT
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is November (1.8 days).
Average snowfall in December
Tropic, UT
- Average snowfall in December: 5.31"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tropic, UT
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is December (8.5 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tropic, UT
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 42min
The months with the most sunshine are June and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in December
Tropic, UT
- Average sunshine days in December: 22.6 days
The month with the most sunshine days is November (25.4 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in December
Tropic, UT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Tropic, UT
- Average cloud cover in December: 28
The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in December
Tropic, UT
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
