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 Vail, the coldest months are January and December, registering an average high-temperature of 24.1°F (-4.4°C).Humidity
The average relative humidity in December in Vail is 85%.Rainfall
In December, the rain falls for 3.9 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 82.8 rainfall days, and 14.8" (376mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In December, it is snowing for 15 days. Throughout December, 10.08" (256mm) of snow is accumulated. Throughout the year, there are 107.8 snowfall days, and 77.72" (1974mm) 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 7:07 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:51 pm MST.
Sunshine
The average sunshine in December in Vail is 5.8h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Vail have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Vail, CO
- Average high temperature in December: 24.1°F
The warmest month (with the highest average high temperature) is July (70.3°F).
The months with the lowest average high temperature are January and December (24.1°F).
- Average low temperature in December: 3°F
The month with the highest average low temperature is July (41.4°F).
The coldest month (with the lowest average low temperature) is January (1.2°F).
Average pressure in December
Vail, CO
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).
Average wind speed in December
Vail, CO
- Average wind speed in December: 4.9mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Vail, CO
- Average humidity in December: 85%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is June (51%).
Average rainfall in December
Vail, CO
- Average rainfall in December: 1.22"
The wettest months (with the highest rainfall) are May and July (1.77").
The driest month (with the least rainfall) is November (0.71").
Average rainfall days in December
Vail, CO
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (1.6 days).
Average snowfall in December
Vail, CO
- Average snowfall in December: 10.08"
The month with the highest snowfall is February (11.38").
The month with the least snowfall is July (0.12").
Average snowfall days in December
Vail, CO
- Average snowfall days in December: 15 days
The month with the highest number of snowfall days is February (16 days).
The month with the least snowfall days is July (0.3 days).
Average daylight in December /
Average sunshine in December
Vail, CO
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 5h and 5min
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 30min).
Average sunshine days in December
Vail, CO
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Vail, CO
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Vail, CO
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in December
Vail, CO
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Vail, Colorado, USA
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