December Weather in Park City, United States

Last updated: June 24, 2025

In Park City, United States, the average temperature in December hovers around -2°C (28°F). Expect chilly extremes, with minimums plummeting to -25°C (-12°F) and maximums reaching 17°C (64°F). This month usually brings about 29 mm (1.1 in) of precipitation over 7 days, coupled with a high average humidity of 87%. Stay warm and dry!

December Temperature in Park City

In December in Park City, the average temperature is -2°C (28°F). The maximum can reach 17°C (64°F), while the minimum can drop as low as -25°C (-12°F). Travelers should be prepared for a wide range of temperatures, from chilly conditions to much warmer days.

December Weather in Park City: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Park City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Park City, December typically has an average temperature of -2°C (28°F), with highs reaching up to 17°C (64°F) and lows dropping to around -25°C (-12°F).

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

December Precipitation in Park City

In Park City in December, the precipitation amount is 29 mm (1.1 in) over a span of 7 days.

December Precipitation Trends in Park City

The chart displays monthly precipitation patterns in Park City, 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 Park City, December typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 7 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 Park City

In Park City in December, humidity is 87%. With an average temperature of -2°C (28°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

December Average Humidity in Park City

This chart illustrates the average monthly humidity levels in Park City, 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 Park City is approximately 87%, 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 Park City

In Park City in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Park City, you can visit Hourly UV Index in Park City.

Maximum UV Index Levels in Park City for December

The chart shows the monthly maximum UV Index (UVI) for Park City 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 Park City typically reaches 2, which falls under the low exposure category.

Data source: Park City 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 Park City Compares to Other Months

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

This table compares monthly weather conditions in Park City, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	19 mm (0.7 inches)	85%	moderate
February Weather	-7°C (19°F)	49 mm (1.9 inches)	85%	moderate
March Weather	2°C (35°F)	36 mm (1.4 inches)	79%	high
April Weather	6°C (42°F)	68 mm (2.7 inches)	74%	very high
May Weather	12°C (54°F)	73 mm (2.9 inches)	76%	very high
June Weather	18°C (65°F)	63 mm (2.5 inches)	79%	extreme
July Weather	23°C (73°F)	22 mm (0.9 inches)	81%	very high
August Weather	21°C (71°F)	21 mm (0.8 inches)	80%	very high
September Weather	16°C (61°F)	46 mm (1.8 inches)	76%	very high
October Weather	7°C (44°F)	47 mm (1.9 inches)	74%	moderate
November Weather	1°C (35°F)	32 mm (1.3 inches)	81%	moderate
December Weather	-2°C (28°F)	29 mm (1.1 inches)	87%	low