December Weather in Troy, United States

Last updated: June 24, 2025

In December, the average temperature in Troy, United States hovers around 2°C (36°F), with extremes ranging from a brisk -20°C (-4°F) to a mild 23°C (74°F). Expect 35 mm (1.4 in) of precipitation over about 3 days, alongside an average humidity level of 84%, creating a cool and damp atmosphere.

December Temperature in Troy

In December in Troy, the average temperature is 2°C (36°F), with maximums reaching up to 23°C (74°F) and minimums dropping as low as -20°C (-4°F). Be prepared for a wide range of temperatures when traveling to Troy during this month.

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

The chart illustrates December temperature patterns in Troy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Troy, December typically has an average temperature of 2°C (36°F), with highs reaching up to 23°C (74°F) and lows dropping to around -20°C (-4°F).

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

December Precipitation in Troy

In Troy in December, the precipitation amount is 35 mm (1.4 in) over the course of 3 days.

December Precipitation Trends in Troy

The chart displays monthly precipitation patterns in Troy, 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 Troy, December typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 3 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 Troy

In Troy in December, humidity is 84%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while traveling.

December Average Humidity in Troy

This chart illustrates the average monthly humidity levels in Troy, 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 Troy is approximately 84%, 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 Troy

In Troy in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Troy, you can check the information here.

Maximum UV Index Levels in Troy for December

The chart shows the monthly maximum UV Index (UVI) for Troy 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 Troy typically reaches 3, which falls under the moderate exposure category.

Data source: Troy 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 Troy Compares to Other Months

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

This table compares monthly weather conditions in Troy, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	44 mm (1.7 inches)	76%	moderate
February Weather	-1°C (31°F)	33 mm (1.3 inches)	77%	moderate
March Weather	7°C (45°F)	93 mm (3.7 inches)	70%	high
April Weather	12°C (53°F)	82 mm (3.2 inches)	73%	very high
May Weather	18°C (65°F)	183 mm (7.2 inches)	82%	very high
June Weather	25°C (77°F)	126 mm (4.9 inches)	82%	extreme
July Weather	26°C (79°F)	94 mm (3.7 inches)	81%	extreme
August Weather	24°C (76°F)	112 mm (4.4 inches)	78%	very high
September Weather	22°C (71°F)	86 mm (3.4 inches)	71%	very high
October Weather	13°C (56°F)	130 mm (5.1 inches)	71%	high
November Weather	6°C (43°F)	43 mm (1.7 inches)	81%	moderate
December Weather	2°C (36°F)	35 mm (1.4 inches)	84%	moderate