December weather forecastSpanish Fork, UT
December
Weather in December
Rounding off the year, December sees Spanish Fork plunged back into winter. The frosty month is characterized by temperatures averaging between 16.2⁰F and a chilly 32.4⁰F. The city glistens under a layer of fresh snow, transforming into a winter wonderland. Residents huddle indoors as the city celebrates the holidays under a blanket of snow. The short, frosty days and long, cold nights mark the end of the year, rounding off the seasonal weather cycle in Spanish Fork.Temperature
December, having an average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 16.2°F (-8.8°C), is the coldest month in Spanish Fork, Utah.Humidity
In December, the average relative humidity in Spanish Fork, Utah, is 80%.Rainfall
The months with the most rainfall are January and December, with an average 1.46" (37mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Spanish Fork, Utah, in December, during 12.2 snowfall days, 6.77" (172mm) of snow is typically accumulated. Throughout the year, there are 54.1 snowfall days, and 33.5" (851mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:11 pm MST.
Sunshine
In Spanish Fork, the average sunshine in December is 5.9h.UV index
The months with the lowest UV index in Spanish Fork are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Spanish Fork, UT
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Spanish Fork, UT
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Spanish Fork, UT
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).
Average humidity in December
Spanish Fork, UT
- Average humidity in December: 80%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (39%).
Average rainfall in December
Spanish Fork, UT
- Average rainfall in December: 1.46"
The wettest months (with the highest rainfall) are January and December (1.46").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in December
Spanish Fork, UT
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is June (6 days).
Average snowfall in December
Spanish Fork, UT
- Average snowfall in December: 6.77"
The month with the highest snowfall is January (8.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Spanish Fork, UT
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is December (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Spanish Fork, UT
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in December
Spanish Fork, UT
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is June (21.3 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in December
Spanish Fork, 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, November and December (UV index 2).
Average cloud cover in December
Spanish Fork, UT
- Average cloud cover in December: 38
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Spanish Fork, 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).
