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
In December, the average high-temperature in Syracuse decreases from a chilly 45.5°F (7.5°C) in November to a wintry 34°F (1.1°C). Syracuse temperatures generally rest at a low of 23.5°F (-4.7°C) during the December nights.Humidity
In December, the average relative humidity is 77%.Rainfall
In Syracuse, during December, the rain falls for 7.8 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Syracuse, during the entire year, the rain falls for 98.9 days and collects up to 13.58" (345mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Syracuse, in December, snow falls for 11.3 days, with typically accumulated 8.78" (223mm) of snow. In Syracuse, during the entire year, snow falls for 54.4 days and aggregates up to 44.84" (1139mm) 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 December, sunrise is at 7:34 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:09 pm MST.
Sunshine
In Syracuse, the average sunshine in December is 6.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Syracuse?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Syracuse?
Average temperature in December
Syracuse, UT
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 23.5°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Syracuse, UT
- Average pressure in December: 30.23"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Syracuse, UT
- Average wind speed in December: 5.7mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in December
Syracuse, UT
- Average humidity in December: 77%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (38%).
Average rainfall in December
Syracuse, UT
- Average rainfall in December: 1.5"
The wettest months (with the highest rainfall) are January and February (1.61").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in December
Syracuse, UT
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is April (12.3 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Syracuse, UT
- Average snowfall in December: 8.78"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Syracuse, UT
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Syracuse, UT
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 1min
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: 5h and 36min).
Average sunshine days in December
Syracuse, UT
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in December
Syracuse, UT
- Average UV index in December: 2
The months with the highest UV index are June and 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
Syracuse, UT
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Syracuse, 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).
Syracuse, Utah, USA
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