January Weather in Casselton, United States

Last updated: June 24, 2025

In January, the average temperature in Casselton, United States hovers around -12°C (12°F), with extreme lows plummeting to -37°C (-34°F) and highs reaching up to 5°C (42°F). Expect 17 mm (0.7 in) of precipitation over about 3 days, accompanied by a notably high average humidity of 90%. Brace yourself for a cold, damp experience!

January Temperature in Casselton

In January in Casselton, the average temperature is -12°C (12°F). Maximums can reach 5°C (42°F), while minimums can drop as low as -37°C (-34°F). It's essential to prepare for extreme cold conditions if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Casselton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casselton, January typically has an average temperature of -12°C (12°F), with highs reaching up to 5°C (42°F) and lows dropping to around -37°C (-34°F).

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

January Precipitation in Casselton

In Casselton in January, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

January Precipitation Trends in Casselton

The chart displays monthly precipitation patterns in Casselton, 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 Casselton, January typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 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 Casselton

In Casselton in January humidity is 90%. With an average temperature of -12°C (12°F), this humidity feels like an unrelenting chill that seeps into your bones, making travel challenging as each breath condenses in the frigid air and every step feels heavier in the damp cold.

January Average Humidity in Casselton

This chart illustrates the average monthly humidity levels in Casselton, 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 Casselton is approximately 90%, 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 Casselton

In Casselton in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Casselton, you can visit Hourly UV Index in Casselton.

Maximum UV Index Levels in Casselton for January

The chart shows the monthly maximum UV Index (UVI) for Casselton 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 Casselton typically reaches 2, which falls under the low exposure category.

Data source: Casselton 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 Casselton Compares to Other Months

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

This table compares monthly weather conditions in Casselton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-12°C (12°F)	17 mm (0.7 inches)	90%	low
February Weather	-12°C (11°F)	20 mm (0.8 inches)	92%	moderate
March Weather	-2°C (28°F)	26 mm (1.0 inches)	85%	moderate
April Weather	4°C (40°F)	47 mm (1.9 inches)	81%	high
May Weather	14°C (57°F)	57 mm (2.2 inches)	75%	very high
June Weather	21°C (70°F)	98 mm (3.9 inches)	79%	very high
July Weather	23°C (73°F)	74 mm (2.9 inches)	76%	very high
August Weather	20°C (69°F)	87 mm (3.4 inches)	78%	very high
September Weather	16°C (61°F)	68 mm (2.7 inches)	77%	high
October Weather	7°C (45°F)	82 mm (3.2 inches)	79%	moderate
November Weather	-2°C (29°F)	17 mm (0.7 inches)	86%	moderate
December Weather	-7°C (19°F)	39 mm (1.5 inches)	86%	low