January Weather in Castleton-on-Hudson, United States

Last updated: June 24, 2025

In Castleton-on-Hudson, United States, the average temperature in January hovers around -2°C (28°F), with lows plunging to a brisk -24°C (-11°F) and highs reaching a mild 17°C (64°F). Expect precipitation of about 69 mm (2.7 in) over 8 days, accompanied by a high humidity level of 89%, creating a chilly yet captivating atmosphere.

January Temperature in Castleton-on-Hudson

In January in Castleton-on-Hudson, the average temperature is -2°C (28°F), with maximums reaching up to 17°C (64°F) and minimums dropping as low as -24°C (-11°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

January Weather in Castleton-on-Hudson: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Castleton-on-Hudson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castleton-on-Hudson, January typically has an average temperature of -2°C (28°F), with highs reaching up to 17°C (64°F) and lows dropping to around -24°C (-11°F).

Data source: Temperature data for Castleton-on-Hudson generated using information from the Copernicus Climate Change Service.

January Precipitation in Castleton-on-Hudson

In Castleton-on-Hudson in January, the precipitation amount is 69 mm (2.7 in) that falls over a period of 8 days.

January Precipitation Trends in Castleton-on-Hudson

The chart displays monthly precipitation patterns in Castleton-on-Hudson, 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 Castleton-on-Hudson, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 8 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 Castleton-on-Hudson

In Castleton-on-Hudson in January, humidity is 89%. With an average temperature of -2°C (28°F), this humidity feels like a heavy blanket, making it difficult to stay warm while traveling outdoors.

January Average Humidity in Castleton-on-Hudson

This chart illustrates the average monthly humidity levels in Castleton-on-Hudson, 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 Castleton-on-Hudson 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 Castleton-on-Hudson

In Castleton-on-Hudson 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 Castleton-on-Hudson, you can check the information here.

Maximum UV Index Levels in Castleton-on-Hudson for January

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

Data source: Castleton-on-Hudson 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 Castleton-on-Hudson Compares to Other Months

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

This table compares monthly weather conditions in Castleton-on-Hudson, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	69 mm (2.7 inches)	89%	moderate
February Weather	-1°C (30°F)	88 mm (3.5 inches)	88%	moderate
March Weather	2°C (36°F)	76 mm (3.0 inches)	86%	high
April Weather	9°C (48°F)	125 mm (4.9 inches)	84%	very high
May Weather	15°C (60°F)	100 mm (3.9 inches)	76%	very high
June Weather	20°C (68°F)	92 mm (3.6 inches)	72%	very high
July Weather	23°C (74°F)	136 mm (5.3 inches)	66%	very high
August Weather	22°C (72°F)	108 mm (4.3 inches)	64%	very high
September Weather	18°C (65°F)	105 mm (4.1 inches)	72%	high
October Weather	12°C (55°F)	137 mm (5.4 inches)	81%	high
November Weather	4°C (40°F)	96 mm (3.8 inches)	87%	moderate
December Weather	0°C (32°F)	95 mm (3.7 inches)	84%	low