January Weather in Port Henry, United States

Last updated: June 24, 2025

In Port Henry, United States, the average temperature in January hovers around -7°C (21°F), with extremes ranging from a chilly -29°C (-21°F) to a milder 12°C (54°F). During this month, precipitation averages 81 mm (3.2 in) over 9 days, contributing to a notably high average humidity of 89%. Be prepared for cold and damp conditions!

January Temperature in Port Henry

In January in Port Henry, the average temperature is -7°C (21°F). Maximum temperatures can reach 12°C (54°F), while minimums can plummet as low as -29°C (-21°F). Visitors should prepare for a wide range of temperatures, ensuring they dress in layers to stay comfortable during their trip.

January Weather in Port Henry: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Port Henry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Henry, January typically has an average temperature of -7°C (21°F), with highs reaching up to 12°C (54°F) and lows dropping to around -29°C (-21°F).

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

January Precipitation in Port Henry

In Port Henry in January, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

January Precipitation Trends in Port Henry

The chart displays monthly precipitation patterns in Port Henry, 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 Port Henry, January typically receives around 81 mm (3.2 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 Port Henry

In Port Henry in January, humidity is 89%. With an average temperature of -7°C (21°F), this humidity feels like a biting chill that wraps around you, making outdoor activities uncomfortable and travel a bit challenging as the damp air penetrates your clothing, leaving you feeling colder than the thermometer suggests.

January Average Humidity in Port Henry

This chart illustrates the average monthly humidity levels in Port Henry, 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 Port Henry is approximately 89%, 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 Port Henry

In Port Henry 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 Port Henry, you can check the information here.

Maximum UV Index Levels in Port Henry for January

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

Data source: Port Henry 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 Port Henry Compares to Other Months

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

This table compares monthly weather conditions in Port Henry, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (21°F)	81 mm (3.2 inches)	89%	moderate
February Weather	-5°C (24°F)	79 mm (3.1 inches)	88%	moderate
March Weather	-1°C (30°F)	68 mm (2.7 inches)	86%	high
April Weather	6°C (44°F)	118 mm (4.7 inches)	84%	very high
May Weather	13°C (57°F)	95 mm (3.7 inches)	76%	very high
June Weather	18°C (66°F)	107 mm (4.2 inches)	72%	very high
July Weather	22°C (71°F)	135 mm (5.3 inches)	66%	very high
August Weather	20°C (69°F)	115 mm (4.5 inches)	64%	very high
September Weather	16°C (62°F)	78 mm (3.1 inches)	72%	high
October Weather	10°C (50°F)	142 mm (5.6 inches)	81%	moderate
November Weather	2°C (36°F)	103 mm (4.1 inches)	87%	moderate
December Weather	-3°C (27°F)	89 mm (3.5 inches)	84%	low