January Weather in Marion, United States

Last updated: June 24, 2025

In Marion, United States, the average temperature in January hovers around -7°C (20°F). Expect chilly extremes, with minimums dipping to -34°C (-29°F) and maximums reaching up to 11°C (52°F). During this month, precipitation averages at 20 mm (0.8 in) across 4 days, and the air carries a significant humidity level of 80%. Bundle up and prepare for the cold!

January Temperature in Marion

In January in Marion, the average temperature is -7°C (20°F), with maximums reaching 11°C (52°F) and minimums dropping as low as -34°C (-29°F). Travelers should be prepared for extreme cold and varying conditions during this time.

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

The chart illustrates January temperature patterns in Marion, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marion, January typically has an average temperature of -7°C (20°F), with highs reaching up to 11°C (52°F) and lows dropping to around -34°C (-29°F).

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

January Precipitation in Marion

In Marion in January, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

January Precipitation Trends in Marion

The chart displays monthly precipitation patterns in Marion, 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 Marion, January typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 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 Marion

In Marion in January, humidity is 80%. With an average temperature of -7°C (20°F), this humidity feels like an icy fog enveloping you, making outdoor travel uncomfortable as your breath freezes in the air and every step forward seems to draw out more chill than the last.

January Average Humidity in Marion

This chart illustrates the average monthly humidity levels in Marion, 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 Marion is approximately 80%, 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 Marion

In Marion 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 Marion, you can visit Hourly UV Index in Marion.

Maximum UV Index Levels in Marion for January

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

Data source: Marion 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 Marion Compares to Other Months

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

This table compares monthly weather conditions in Marion, 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 (20°F)	20 mm (0.8 inches)	80%	low
February Weather	-7°C (20°F)	22 mm (0.9 inches)	84%	moderate
March Weather	2°C (35°F)	64 mm (2.5 inches)	75%	moderate
April Weather	7°C (45°F)	77 mm (3.0 inches)	79%	very high
May Weather	15°C (59°F)	124 mm (4.9 inches)	74%	very high
June Weather	23°C (73°F)	82 mm (3.2 inches)	81%	extreme
July Weather	24°C (76°F)	85 mm (3.4 inches)	82%	very high
August Weather	22°C (72°F)	95 mm (3.8 inches)	80%	very high
September Weather	19°C (66°F)	100 mm (3.9 inches)	75%	very high
October Weather	9°C (48°F)	76 mm (3.0 inches)	77%	moderate
November Weather	2°C (35°F)	24 mm (0.9 inches)	85%	moderate
December Weather	-3°C (26°F)	38 mm (1.5 inches)	83%	low