December weather forecastCisco, UT
December
Weather in December
December, the first month of the winter in Cisco, is still a cold month, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 34.9°F (1.6°C).Temperature
The transition into December indicates a reduction in the average high-temperature, down to a wintry 34.9°F (1.6°C) from November's frosty 47.3°F (8.5°C). During December, Cisco consistently records a temperature low averaging a freezing cold 19.8°F (-6.8°C).Humidity
In Cisco, the average relative humidity in December is 71%.Rainfall
In Cisco, during December, the rain falls for 5 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Cisco, during the entire year, the rain falls for 117.7 days and collects up to 15.83" (402mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall. Snow falls for 4.4 days and accumulates 2.17" (55mm) of snow.Daylight
December has the shortest days of the year in Cisco, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:55 pm. On the last day of December, in Cisco, sunrise is at 7:35 am and sunset at 5:05 pm MST.
Sunshine
In Cisco, the average sunshine in December is 6.6h.UV index
In December, the average daily maximum UV index in Cisco, Utah, is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cisco, UT
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in December
Cisco, UT
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Cisco, UT
- Average wind speed in December: 5.1mph
The windiest months (with the highest average wind speed) are April and June (8mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in December
Cisco, UT
- Average humidity in December: 71%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is June (29%).
Average rainfall in December
Cisco, UT
- Average rainfall in December: 0.59"
The wettest months (with the highest rainfall) are July and August (3.15").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in December
Cisco, UT
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Cisco, UT
- Average snowfall in December: 2.17"
The month with the highest snowfall is December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Cisco, UT
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is January (4.8 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
Cisco, UT
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in December
Cisco, UT
- Average sunshine days in December: 22.6 days
The months with the most sunshine days are January and November (23 days).
The month with the least sunshine days is July (8 days).
Average UV index in December
Cisco, UT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Cisco, UT
- Average cloud cover in December: 29
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in December
Cisco, 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).





