January Weather in Saint Joseph, United States

Last updated: June 24, 2025

In Saint Joseph, United States, the average temperature in January hovers around -2°C (29°F). Expect a chilling minimum of -27°C (-16°F), while the mercury can rise to a maximum of 18°C (65°F). With an average humidity of 84%, don't forget your umbrella—precipitation totals 78 mm (3.1 in) over about 8 days. Stay warm and prepared!

January Temperature in Saint Joseph

In January in Saint Joseph, the average temperature is -2°C (29°F), with maximums reaching 18°C (65°F) and minimums dropping as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.

January Weather in Saint Joseph: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Saint Joseph, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Joseph, January typically has an average temperature of -2°C (29°F), with highs reaching up to 18°C (65°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Saint Joseph

In Saint Joseph in January, the total precipitation amount is 78 mm (3.1 in) over the course of 8 days.

January Precipitation Trends in Saint Joseph

The chart displays monthly precipitation patterns in Saint Joseph, 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 Saint Joseph, January typically receives around 78 mm (3.1 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 Saint Joseph

In Saint Joseph in January, humidity is 84%. With an average temperature of -2°C (29°F), this humidity feels like an icy blanket that clings to your skin, making it difficult to stay warm and comfortable while traveling.

January Average Humidity in Saint Joseph

This chart illustrates the average monthly humidity levels in Saint Joseph, 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 Saint Joseph 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 Saint Joseph

In Saint Joseph 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 Saint Joseph, you can check the information here.

Maximum UV Index Levels in Saint Joseph for January

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

Data source: Saint Joseph 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 Saint Joseph Compares to Other Months

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

This table compares monthly weather conditions in Saint Joseph, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	78 mm (3.1 inches)	84%	moderate
February Weather	0°C (32°F)	78 mm (3.1 inches)	82%	moderate
March Weather	6°C (43°F)	112 mm (4.4 inches)	84%	high
April Weather	11°C (53°F)	117 mm (4.6 inches)	83%	very high
May Weather	18°C (65°F)	142 mm (5.6 inches)	80%	very high
June Weather	24°C (75°F)	103 mm (4.1 inches)	83%	extreme
July Weather	25°C (78°F)	87 mm (3.4 inches)	82%	very high
August Weather	24°C (75°F)	105 mm (4.1 inches)	82%	very high
September Weather	21°C (70°F)	80 mm (3.2 inches)	79%	very high
October Weather	14°C (58°F)	117 mm (4.6 inches)	79%	high
November Weather	5°C (42°F)	77 mm (3.0 inches)	88%	moderate
December Weather	2°C (36°F)	59 mm (2.3 inches)	87%	moderate