December weather forecastHeist, UT
December
Weather in December
The first month of the winter, December, is also an icy month in Heist, Utah, with temperature in the range of an average low of 25.5°F (-3.6°C) and an average high of 41.5°F (5.3°C).Temperature
December brings the lowest temperatures, with an average high of 41.5°F (5.3°C) and an average low of 25.5°F (-3.6°C).Humidity
In Heist, Utah, the average relative humidity in December is 63%.Rainfall
In Heist, in December, during 6.1 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Heist, during the entire year, the rain falls for 75.1 days and collects up to 11.26" (286mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Heist, Utah, in December, during 4.9 snowfall days, 4.09" (104mm) of snow is typically accumulated. Throughout the year, in Heist, there are 21 snowfall days, and 20.12" (511mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 5:16 pm. On the last day of December, in Heist, sunrise is at 7:50 am and sunset at 5:26 pm MST.
Sunshine
December has the least sunshine of the year in Heist, with an average of 6.5h of sunshine.UV index
The months with the lowest UV index in Heist are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Heist, UT
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in December
Heist, UT
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Heist, UT
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are January, November and December (7.1mph).
Average humidity in December
Heist, UT
- Average humidity in December: 63%
The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is June (20%).
Average rainfall in December
Heist, UT
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Heist, UT
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is July (10.5 days).
The month with the least rainy days is June (3.1 days).
Average snowfall in December
Heist, UT
- Average snowfall in December: 4.09"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Heist, UT
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is December (4.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heist, 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 30min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Heist, UT
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is June (25.4 days).
The months with the least sunshine days are July and August (18.3 days).
Average UV index in December
Heist, UT
- Average UV index in December: 2
The months with the highest UV index are May, 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
Heist, UT
- Average cloud cover in December: 28
The month with the most cloud cover is December (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Heist, UT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
