December Weather in Vail, United States

Last updated: June 24, 2025

In December, the average temperature in Vail, United States hovers around 11°C (51°F). Expect a temperature range that can dip as low as -3°C (27°F) and soar up to 25°C (78°F). Over the month, anticipate about 29 mm (1.1 in) of precipitation spread over 4 days, with an average humidity level of 81%, making it a season of refreshing yet moist conditions.

December Temperature in Vail

In December in Vail, the average temperature is 11°C (51°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as -3°C (27°F). Be sure to pack for a variety of weather conditions when traveling during this time!

December Weather in Vail: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Vail, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vail, December typically has an average temperature of 11°C (51°F), with highs reaching up to 25°C (78°F) and lows dropping to around -3°C (27°F).

Data source: Temperature data for Vail generated using information from the Copernicus Climate Change Service.

December Precipitation in Vail

In Vail in December, the precipitation amount is 29 mm (1.1 in) over a span of 4 days.

December Precipitation Trends in Vail

The chart displays monthly precipitation patterns in Vail, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Vail, December typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Vail

In Vail in December, humidity is 81%. With an average temperature of 11°C (51°F), this humidity feels like walking through a thick blanket of moisture, making travel uncomfortable and causing clothes to cling to the skin, while the crisp air adds a chill that contrasts sharply with the heavy, humid atmosphere.

December Average Humidity in Vail

This chart illustrates the average monthly humidity levels in Vail, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Vail is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Vail

In Vail in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Vail.

Maximum UV Index Levels in Vail for December

The chart shows the monthly maximum UV Index (UVI) for Vail in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Vail typically reaches 5, which falls under the moderate exposure category.

Data source: Vail December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Vail Compares to Other Months

Weather in Vail varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Vail, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Vail, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	24 mm (0.9 inches)	74%	moderate
February Weather	11°C (52°F)	36 mm (1.4 inches)	71%	high
March Weather	15°C (59°F)	17 mm (0.7 inches)	60%	very high
April Weather	20°C (68°F)	4 mm (0.1 inches)	43%	extreme
May Weather	23°C (75°F)	4 mm (0.1 inches)	32%	extreme
June Weather	29°C (85°F)	9 mm (0.3 inches)	28%	extreme
July Weather	29°C (84°F)	66 mm (2.6 inches)	38%	extreme
August Weather	28°C (83°F)	57 mm (2.3 inches)	60%	extreme
September Weather	26°C (79°F)	32 mm (1.3 inches)	72%	extreme
October Weather	21°C (70°F)	13 mm (0.5 inches)	66%	very high
November Weather	16°C (61°F)	16 mm (0.6 inches)	74%	high
December Weather	11°C (51°F)	29 mm (1.1 inches)	81%	moderate