December weather forecastSnowmass, CO
December
Weather in December
December, the first month of the winter in Snowmass, is still a freezing cold month, with an average temperature fluctuating between 27.9°F (-2.3°C) and 7.7°F (-13.5°C).Temperature
Snowmass's temperature records reveal December as the coldest month, marked by average highs of 27.9°F (-2.3°C) and lows of 7.7°F (-13.5°C).Humidity
In Snowmass, the average relative humidity in December is 83%.Rainfall
In Snowmass, during December, the rain falls for 8.2 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Snowmass, during the entire year, the rain falls for 119.7 days and collects up to 16.69" (424mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Snowmass, Colorado, during December, snow falls for 16.5 days and regularly aggregates up to 12.72" (323mm) of snow. Throughout the year, in Snowmass, there are 100.5 snowfall days, and 78.03" (1982mm) of snow is accumulated.Daylight
December has the shortest days of the year in Snowmass, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:54 pm MST.
Sunshine
In Snowmass, Colorado, the average sunshine in December is 6.2h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. 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
Snowmass, CO
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in December: 7.7°F
The month with the highest average low temperature is July (43.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Snowmass, CO
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is May (29.94"Hg).
Average wind speed in December
Snowmass, CO
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
Snowmass, CO
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (48%).
Average rainfall in December
Snowmass, CO
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is April (2.05").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
Snowmass, CO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is November (5.1 days).
Average snowfall in December
Snowmass, CO
- Average snowfall in December: 12.72"
The month with the highest snowfall is February (13.94").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Snowmass, CO
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is February (18.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Snowmass, CO
- 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 12min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in December
Snowmass, CO
- Average sunshine days in December: 13 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is April (7.3 days).
Average UV index in December
Snowmass, CO
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Snowmass, CO
- Average cloud cover in December: 36
The month with the most cloud cover is February (Cloud cover 43).
The months with the least cloud cover are June and September (Cloud cover 14).
Average visibility in December
Snowmass, CO
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
