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December Weather in Troy, United States

Last updated: June 24, 2025

In Troy, United States, the average temperature in December hovers around 7°C (45°F). Temperatures can vary significantly, with a minimum of -11°C (13°F) and a maximum of 24°C (75°F). Expect 123 mm (4.8 in) of precipitation spread over about 10 days, and be ready for high humidity levels at 88%.

December Temperature in Troy

In December in Troy, the average temperature is 7°C (45°F). The maximum can reach 24°C (75°F), while the minimum can drop to as low as -11°C (13°F). It’s a month of varied temperatures, so travelers should pack layers to accommodate both the warmth of the day and the chill of the night.

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 7°C (45°F), with highs reaching up to 24°C (75°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec404353597178817975634945
Data source: Temperature data for Troy generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Troy

In Troy in December, the total precipitation amount is 123 mm (4.8 in) over the course of 10 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 123 mm (4.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10516818514311911412110993114102123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Troy

In Troy in December humidity is 88%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through a heavy, thick atmosphere that clings to your skin.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%84%80%82%83%80%76%75%75%85%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)105 mm (4.1 inches)86%moderate
February Weather6°C (43°F)168 mm (6.6 inches)84%high
March Weather12°C (53°F)184 mm (7.3 inches)84%high
April Weather15°C (60°F)143 mm (5.6 inches)80%very high
May Weather22°C (71°F)119 mm (4.7 inches)82%extreme
June Weather26°C (78°F)114 mm (4.5 inches)83%extreme
July Weather27°C (81°F)121 mm (4.7 inches)79%extreme
August Weather26°C (79°F)108 mm (4.3 inches)76%very high
September Weather24°C (75°F)93 mm (3.7 inches)75%very high
October Weather17°C (63°F)114 mm (4.5 inches)74%high
November Weather9°C (49°F)102 mm (4.0 inches)85%moderate
December Weather7°C (45°F)123 mm (4.8 inches)88%moderate

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