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
The shift from November to December in Herriman involves a decrease in the average high-temperature, from a chilly 46.2°F (7.9°C) to a wintry 33.8°F (1°C). Throughout the month of December, Herriman witnesses an average temperature of 20.5°F (-6.4°C).Humidity
In Herriman, Utah, the average relative humidity in December is 79%.Rainfall
In Herriman, during December, the rain falls for 6.6 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, in Herriman, there are 86.1 rainfall days, and 6.61" (168mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall in Herriman, Utah. Snow falls for 9.8 days and accumulates 3.98" (101mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:32 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:51 am and sunset at 5:11 pm MST.
Sunshine
In December, the average sunshine in Herriman is 5.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
How cold is it in Herriman in December?
What is the average humidity in December in Herriman?
How many days does it rain in December in Herriman?
What is the snowiest month in Herriman?
How many days does it snow in December in Herriman?
What is the month with the shortest days in Herriman?
How many hours of daylight does Herriman have in December?
When is the sunrise / sunset in December in Herriman?
How many hours of sunshine does Herriman have in December?
When is the lowest UV index in Herriman?
What is the UV index reading in December in Herriman?
Average temperature in December
Herriman, UT
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 20.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Herriman, 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
Herriman, UT
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in December
Herriman, UT
- Average humidity in December: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (35%).
Average rainfall in December
Herriman, UT
- Average rainfall in December: 0.63"
The wettest months (with the highest rainfall) are March and April (0.71").
The driest month (with the least rainfall) is June (0.28").
Average rainfall days in December
Herriman, UT
- Average rainfall days in December: 6.6 days
The months with the highest number of rainy days are March and April (9.8 days).
The month with the least rainy days is November (5.2 days).
Average snowfall in December
Herriman, UT
- Average snowfall in December: 3.98"
The month with the highest snowfall is December (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Herriman, UT
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Herriman, 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: 5h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Herriman, UT
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is June (23.1 days).
The months with the least sunshine days are February and April (16.3 days).
Average UV index in December
Herriman, 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
Herriman, UT
- Average cloud cover in December: 39
The months with the most cloud cover are January and February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Herriman, 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 month with the lowest visibility is January (4mi).
Herriman, Utah, USA
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