January Weather in Marysville, United States

Last updated: June 24, 2025

In Marysville, United States, the average temperature in January hovers around 9°C (49°F), offering a crisp atmosphere. Expect minimums dipping to -2°C (29°F) and maximums reaching a pleasant 23°C (75°F). With an average precipitation of 154 mm (6.1 in) spread over 10 days, you'll want to prepare for some wet spells. The average humidity stands at a notable 84%, adding a touch of moisture to the cool air.

January Temperature in Marysville

In January in Marysville, the average temperature is 9°C (49°F), with maximums reaching up to 23°C (75°F) and minimums dipping as low as -2°C (29°F). It's a great time to explore Marysville if you enjoy mild weather and the opportunity for varied outdoor activities.

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

The chart illustrates January temperature patterns in Marysville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marysville, January typically has an average temperature of 9°C (49°F), with highs reaching up to 23°C (75°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in Marysville

In Marysville in January, the precipitation amount is 154 mm (6.1 in) over a span of 10 days.

January Precipitation Trends in Marysville

The chart displays monthly precipitation patterns in Marysville, 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 Marysville, January typically receives around 154 mm (6.1 inches) of precipitation spread over approximately 10 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 Marysville

In Marysville in January, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

January Average Humidity in Marysville

This chart illustrates the average monthly humidity levels in Marysville, 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 Marysville is approximately 84%, 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 Marysville

In Marysville 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 Marysville, you can check the information here.

Maximum UV Index Levels in Marysville for January

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

Data source: Marysville 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 Marysville Compares to Other Months

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

This table compares monthly weather conditions in Marysville, 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 (49°F)	154 mm (6.1 inches)	84%	moderate
February Weather	11°C (51°F)	155 mm (6.1 inches)	84%	moderate
March Weather	13°C (55°F)	145 mm (5.7 inches)	83%	high
April Weather	17°C (62°F)	68 mm (2.7 inches)	81%	very high
May Weather	21°C (70°F)	36 mm (1.4 inches)	74%	very high
June Weather	26°C (79°F)	6 mm (0.2 inches)	64%	extreme
July Weather	28°C (83°F)	1 mm (0.0 inches)	44%	very high
August Weather	27°C (81°F)	0 mm (0.0 inches)	36%	very high
September Weather	24°C (75°F)	6 mm (0.2 inches)	44%	very high
October Weather	18°C (65°F)	48 mm (1.9 inches)	65%	high
November Weather	13°C (55°F)	82 mm (3.2 inches)	84%	moderate
December Weather	9°C (48°F)	130 mm (5.1 inches)	83%	moderate