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December Weather in Troy, United States

Last updated: June 24, 2025

In December, the average temperature in Troy, United States hovers around 12°C (54°F), with extremes ranging from a chilly -3°C (27°F) to a warm 28°C (83°F). Expect 70 mm (2.7 in) of precipitation spread over 8 days, and enjoy the high average humidity at 87%, creating a uniquely refreshing atmosphere.

December Temperature in Troy

In December in Troy, the average temperature is 12°C (54°F). The maximum can reach 28°C (83°F) and the minimum can be as low as -3°C (27°F). This diverse temperature range makes Troy an interesting destination for travelers seeking both mild weather and a touch of winter charm.

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 12°C (54°F), with highs reaching up to 28°C (83°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec505263677682868781705954
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 precipitation amount is 70 mm (2.7 in) spread over 8 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 70 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec61758295182846082841195270
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 87%. With an average temperature of 12°C (54°F), this humidity feels like a damp embrace, making it quite uncomfortable for traveling, as the air feels heavy and can quickly sap your energy as you explore the sights.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Troy for better planning.

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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579101112121110864
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 Weather10°C (50°F)61 mm (2.4 inches)79%moderate
February Weather11°C (52°F)75 mm (3.0 inches)80%high
March Weather17°C (63°F)82 mm (3.2 inches)78%very high
April Weather20°C (68°F)95 mm (3.7 inches)79%very high
May Weather24°C (76°F)182 mm (7.2 inches)81%extreme
June Weather28°C (82°F)84 mm (3.3 inches)77%extreme
July Weather30°C (86°F)60 mm (2.4 inches)71%extreme
August Weather30°C (87°F)82 mm (3.2 inches)67%extreme
September Weather27°C (81°F)84 mm (3.3 inches)69%very high
October Weather21°C (71°F)119 mm (4.7 inches)73%very high
November Weather15°C (59°F)52 mm (2.0 inches)82%high
December Weather12°C (54°F)70 mm (2.7 inches)87%moderate

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