January Weather in Marion, United States

Last updated: June 24, 2025

In January, the average temperature in Marion, United States hovers around 9°C (48°F). While temperatures can drop as low as -10°C (14°F), they can also reach a high of 27°C (80°F). Expect 76 mm (3.0 in) of precipitation over 8 days, contributing to an average humidity level of 85%.

January Temperature in Marion

In January in Marion, the average temperature is 9°C (48°F). Maximums can reach 27°C (80°F) and minimums can be as low as -10°C (14°F). Be prepared for a wide range of temperatures while traveling, so pack accordingly!

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 9°C (48°F), with highs reaching up to 27°C (80°F) and lows dropping to around -10°C (14°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 precipitation amount is 76 mm (3.0 in) spread over a duration of 8 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 76 mm (3.0 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 Marion

In Marion in January humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

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 85%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Marion for better planning.

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 4, which falls under the moderate 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	9°C (48°F)	76 mm (3.0 inches)	85%	moderate
February Weather	12°C (53°F)	94 mm (3.7 inches)	82%	high
March Weather	14°C (57°F)	66 mm (2.6 inches)	81%	very high
April Weather	18°C (65°F)	94 mm (3.7 inches)	80%	very high
May Weather	23°C (74°F)	117 mm (4.6 inches)	81%	extreme
June Weather	25°C (78°F)	144 mm (5.7 inches)	81%	extreme
July Weather	27°C (81°F)	144 mm (5.7 inches)	81%	extreme
August Weather	27°C (80°F)	163 mm (6.4 inches)	80%	very high
September Weather	25°C (77°F)	162 mm (6.4 inches)	79%	very high
October Weather	20°C (69°F)	53 mm (2.1 inches)	80%	very high
November Weather	12°C (55°F)	81 mm (3.2 inches)	85%	high
December Weather	10°C (51°F)	132 mm (5.2 inches)	86%	moderate