January Weather in Saint Joseph, United States

Last updated: June 24, 2025

In January, the average temperature in Saint Joseph, United States hovers around -10°C (15°F), with chilly nights dropping to a minimum of -35°C (-30°F) and daytime highs reaching up to 8°C (46°F). Expect around 19 mm (0.8 in) of precipitation over 4 days, complemented by an average humidity of 87%, creating an invigoratingly crisp atmosphere.

January Temperature in Saint Joseph

In January in Saint Joseph, the average temperature is -10°C (15°F). Maximum can reach 8°C (46°F) and minimum can be as low as -35°C (-30°F). Travelers should be prepared for extremely cold conditions and consider appropriate winter clothing and gear for outdoor activities.

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 -10°C (15°F), with highs reaching up to 8°C (46°F) and lows dropping to around -35°C (-30°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 precipitation amount is 19 mm (0.8 in) over a span of 4 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 19 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.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Saint Joseph

In Saint Joseph in January, humidity is 87%. With an average temperature of -10°C (15°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and the air feel heavy with frost.

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 87%, 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 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 Saint Joseph, you can visit Hourly UV Index in Saint Joseph.

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 2, which falls under the low 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	-10°C (15°F)	19 mm (0.8 inches)	87%	low
February Weather	-10°C (15°F)	24 mm (1.0 inches)	90%	moderate
March Weather	0°C (31°F)	50 mm (2.0 inches)	85%	moderate
April Weather	5°C (42°F)	81 mm (3.2 inches)	84%	high
May Weather	14°C (58°F)	95 mm (3.7 inches)	78%	very high
June Weather	21°C (71°F)	69 mm (2.7 inches)	80%	very high
July Weather	23°C (74°F)	98 mm (3.9 inches)	81%	very high
August Weather	21°C (70°F)	143 mm (5.6 inches)	81%	very high
September Weather	17°C (63°F)	115 mm (4.5 inches)	81%	high
October Weather	8°C (47°F)	103 mm (4.1 inches)	84%	moderate
November Weather	0°C (32°F)	29 mm (1.2 inches)	88%	moderate
December Weather	-6°C (22°F)	45 mm (1.8 inches)	84%	low