January Weather in Bay City, United States

Last updated: June 24, 2025

In Bay City, United States, the average temperature in January hovers around 13°C (56°F). Expect a minimum temperature of -6°C (22°F) and a maximum of 28°C (82°F). During this month, precipitation averages 73 mm (2.9 in) over 8 days, with an average humidity level of 78%. 🌧️

January Temperature in Bay City

In January in Bay City, the average temperature is 13°C (56°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack both warm and cool clothing for their visit.

January Weather in Bay City: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Bay City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bay City, January typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (82°F) and lows dropping to around -6°C (22°F).

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

January Precipitation in Bay City

In Bay City in January, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

January Precipitation Trends in Bay City

The chart displays monthly precipitation patterns in Bay City, 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 Bay City, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Bay City

In Bay City in January, humidity is 78%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities a bit uncomfortable, creating a heavy atmosphere that clings to the skin, urging travelers to dress in layers for warmth and comfort.

January Average Humidity in Bay City

This chart illustrates the average monthly humidity levels in Bay City, 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 Bay City 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 Bay City

In Bay City in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Bay City.

Maximum UV Index Levels in Bay City for January

The chart shows the monthly maximum UV Index (UVI) for Bay City 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 Bay City typically reaches 5, which falls under the moderate exposure category.

Data source: Bay City 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 Bay City Compares to Other Months

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

This table compares monthly weather conditions in Bay City, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	73 mm (2.9 inches)	78%	moderate
February Weather	15°C (60°F)	72 mm (2.8 inches)	81%	very high
March Weather	19°C (67°F)	70 mm (2.7 inches)	76%	very high
April Weather	22°C (72°F)	71 mm (2.8 inches)	79%	extreme
May Weather	26°C (79°F)	137 mm (5.4 inches)	79%	extreme
June Weather	28°C (83°F)	157 mm (6.2 inches)	74%	extreme
July Weather	29°C (84°F)	145 mm (5.7 inches)	71%	extreme
August Weather	29°C (85°F)	171 mm (6.7 inches)	68%	extreme
September Weather	27°C (81°F)	165 mm (6.5 inches)	73%	extreme
October Weather	23°C (74°F)	74 mm (2.9 inches)	75%	very high
November Weather	18°C (64°F)	78 mm (3.1 inches)	78%	high
December Weather	15°C (60°F)	90 mm (3.5 inches)	84%	moderate