January Weather in Seneca, United States

Last updated: June 24, 2025

In January, the average temperature in Seneca, United States hovers around -3°C (26°F). Temperatures can drop to a frigid -31°C (-23°F) at their lowest, while peaking at a relatively mild 16°C (60°F). Expect 64 mm (2.5 in) of precipitation spread over 8 days, with an average humidity of 82%, creating a crisp and damp winter environment.

January Temperature in Seneca

In January in Seneca, the average temperature is -3°C (26°F), with maximums reaching up to 16°C (60°F) and minimums dropping as low as -31°C (-23°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for comfort.

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

The chart illustrates January temperature patterns in Seneca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seneca, January typically has an average temperature of -3°C (26°F), with highs reaching up to 16°C (60°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in Seneca

In Seneca in January, the precipitation amount is 64 mm (2.5 in) over the course of 8 days.

January Precipitation Trends in Seneca

The chart displays monthly precipitation patterns in Seneca, 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 Seneca, January typically receives around 64 mm (2.5 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 Seneca

In Seneca in January, humidity is 82%. With an average temperature of -3°C (26°F), this humidity feels like an uncomfortable chill that makes traveling outside feel more biting and penetrating, as the cold damp air clings to your skin, intensifying the cold sensation and making even short excursions feel more daunting.

January Average Humidity in Seneca

This chart illustrates the average monthly humidity levels in Seneca, 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 Seneca is approximately 82%, 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 Seneca

In Seneca 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 Seneca, you can check the information here.

Maximum UV Index Levels in Seneca for January

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

Data source: Seneca 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 Seneca Compares to Other Months

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

This table compares monthly weather conditions in Seneca, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	64 mm (2.5 inches)	82%	moderate
February Weather	-2°C (28°F)	68 mm (2.7 inches)	83%	moderate
March Weather	5°C (41°F)	93 mm (3.7 inches)	84%	high
April Weather	10°C (50°F)	119 mm (4.7 inches)	85%	very high
May Weather	17°C (63°F)	165 mm (6.5 inches)	79%	very high
June Weather	23°C (73°F)	143 mm (5.6 inches)	82%	very high
July Weather	24°C (76°F)	101 mm (4.0 inches)	80%	very high
August Weather	23°C (74°F)	93 mm (3.6 inches)	81%	very high
September Weather	20°C (69°F)	91 mm (3.6 inches)	80%	very high
October Weather	13°C (56°F)	136 mm (5.4 inches)	82%	high
November Weather	4°C (40°F)	58 mm (2.3 inches)	88%	moderate
December Weather	1°C (34°F)	56 mm (2.2 inches)	84%	low