January Weather in Troy, United States

Last updated: June 24, 2025

In January, the average temperature in Troy, United States hovers around 4°C (40°F). Expect a chilly minimum of -18°C (1°F), while the thermometer can rise to a pleasant 22°C (72°F) on warmer days. Be prepared for 105 mm (4.1 in) of precipitation spread over 9 days, and don’t forget to account for the high average humidity of 86%, which adds to the overall atmosphere of the season.

January Temperature in Troy

In January in Troy, the average temperature is 4°C (40°F). Maximum temperatures can reach 22°C (72°F), while minimums can drop to as low as -18°C (1°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates January 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, January typically has an average temperature of 4°C (40°F), with highs reaching up to 22°C (72°F) and lows dropping to around -18°C (1°F).

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

January Precipitation in Troy

In Troy in January, the total precipitation amount reaches 105 mm (4.1 in) over the course of 9 days.

January Precipitation Trends in Troy

The chart displays monthly precipitation patterns in Troy, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Troy, January typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Troy

In Troy in January humidity is 86%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel cumbersome as you navigate through a thick, heavy air that clings to your skin.

January Average Humidity in Troy

This chart illustrates the average monthly humidity levels in Troy, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Troy is approximately 86%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Troy

In Troy in January, 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 January

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

Data source: Troy January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	105 mm (4.1 inches)	86%	moderate
February Weather	6°C (43°F)	168 mm (6.6 inches)	84%	high
March Weather	12°C (53°F)	184 mm (7.3 inches)	84%	high
April Weather	15°C (60°F)	143 mm (5.6 inches)	80%	very high
May Weather	22°C (71°F)	119 mm (4.7 inches)	82%	extreme
June Weather	26°C (78°F)	114 mm (4.5 inches)	83%	extreme
July Weather	27°C (81°F)	121 mm (4.7 inches)	79%	extreme
August Weather	26°C (79°F)	108 mm (4.3 inches)	76%	very high
September Weather	24°C (75°F)	93 mm (3.7 inches)	75%	very high
October Weather	17°C (63°F)	114 mm (4.5 inches)	74%	high
November Weather	9°C (49°F)	102 mm (4.0 inches)	85%	moderate
December Weather	7°C (45°F)	123 mm (4.8 inches)	88%	moderate