January Weather in Seymour, United States

Last updated: June 24, 2025

In Seymour, United States, the average temperature in January hovers around -4°C (25°F), with lows dipping to -30°C (-22°F) and highs reaching up to 14°C (58°F). Expect about 48 mm (1.9 in) of precipitation spread over 6 days, and with an average humidity of 78%, it’s a month where winter’s chill graces the air.

January Temperature in Seymour

In January in Seymour, the average temperature is -4°C (25°F). Maximum temperatures can reach 14°C (58°F), while minimums can drop as low as -30°C (-22°F). Travelers should be prepared for a wide range of temperatures, so layering clothes is essential for comfort.

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

The chart illustrates January temperature patterns in Seymour, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seymour, January typically has an average temperature of -4°C (25°F), with highs reaching up to 14°C (58°F) and lows dropping to around -30°C (-22°F).

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

January Precipitation in Seymour

In Seymour in January, the precipitation amount is 48 mm (1.9 in) distributed over 6 days.

January Precipitation Trends in Seymour

The chart displays monthly precipitation patterns in Seymour, 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 Seymour, January typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 6 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 Seymour

In Seymour in January, humidity is 78%. With an average temperature of -4°C (25°F), this humidity feels like an icy blanket wrapping around you, making travel outside feel even colder and more biting, as the dampness seeps into your clothes and chills you to the bone.

January Average Humidity in Seymour

This chart illustrates the average monthly humidity levels in Seymour, 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 Seymour is approximately 78%, 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 Seymour

In Seymour 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 Seymour, you can check the information here.

Maximum UV Index Levels in Seymour for January

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

Data source: Seymour 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 Seymour Compares to Other Months

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

This table compares monthly weather conditions in Seymour, 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 (25°F)	48 mm (1.9 inches)	78%	moderate
February Weather	-3°C (27°F)	49 mm (1.9 inches)	80%	moderate
March Weather	5°C (42°F)	98 mm (3.9 inches)	77%	high
April Weather	10°C (51°F)	75 mm (3.0 inches)	77%	very high
May Weather	17°C (64°F)	145 mm (5.7 inches)	77%	very high
June Weather	24°C (75°F)	122 mm (4.8 inches)	81%	extreme
July Weather	26°C (78°F)	89 mm (3.5 inches)	81%	very high
August Weather	24°C (75°F)	78 mm (3.1 inches)	77%	very high
September Weather	21°C (69°F)	125 mm (4.9 inches)	73%	very high
October Weather	12°C (54°F)	132 mm (5.2 inches)	75%	high
November Weather	4°C (40°F)	53 mm (2.1 inches)	85%	moderate
December Weather	0°C (33°F)	35 mm (1.4 inches)	83%	moderate