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
Smithfield's December weather, with an average high temperature of 29.3°F (-1.5°C) and an average low temperature of 16°F (-8.9°C), tends to be the coldest of the year.Humidity
The average relative humidity in December is 85%.Rainfall
In Smithfield, in December, it is raining for 10.7 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 135.6 rainfall days, and 18.54" (471mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Smithfield, during December, snow falls for 16.3 days and regularly aggregates up to 12.17" (309mm) of snow. Throughout the year, there are 78.7 snowfall days, and 56.69" (1440mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:54 am and sunset at 5:06 pm MST.
Sunshine
In Smithfield, the average sunshine in December is 5.4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is 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 Smithfield 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?
How high is the UV index in December?
Average temperature in December
Smithfield, UT
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in December
Smithfield, UT
- Average pressure in December: 30.24"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Smithfield, UT
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in December
Smithfield, UT
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (37%).
Average rainfall in December
Smithfield, UT
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is January (2.2").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in December
Smithfield, UT
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is July (7.5 days).
Average snowfall in December
Smithfield, UT
- Average snowfall in December: 12.17"
The month with the highest snowfall is January (16.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Smithfield, UT
- Average snowfall days in December: 16.3 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Smithfield, UT
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Smithfield, UT
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Smithfield, UT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Smithfield, UT
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Smithfield, UT
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Smithfield, Utah, USA
Weather forecast for your location
2. Allow the app to use your location