January Weather in Saint Clair, United States

Last updated: June 24, 2025

In January, the average temperature in Saint Clair, United States hovers around -3°C (27°F). Expect to experience a minimum of -23°C (-9°F) and a maximum of 11°C (51°F). During this month, precipitation typically reaches 70 mm (2.8 in) over 9 days, accompanied by a high average humidity of 88%.

January Temperature in Saint Clair

In January in Saint Clair, the average temperature is -3°C (27°F), with maximums reaching 11°C (51°F) and minimums plunging as low as -23°C (-9°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Saint Clair, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Clair, January typically has an average temperature of -3°C (27°F), with highs reaching up to 11°C (51°F) and lows dropping to around -23°C (-9°F).

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

January Precipitation in Saint Clair

In Saint Clair in January, the total precipitation amount is 70 mm (2.8 in) spread over 9 days.

January Precipitation Trends in Saint Clair

The chart displays monthly precipitation patterns in Saint Clair, 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 Clair, January typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 9 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 Clair

In Saint Clair in January humidity is 88%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making outdoor exploration less inviting as the dampness clings to your clothing and slows your movements.

January Average Humidity in Saint Clair

This chart illustrates the average monthly humidity levels in Saint Clair, 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 Clair is approximately 88%, 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 Clair

In Saint Clair 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 Clair, you can visit Hourly UV Index in Saint Clair.

Maximum UV Index Levels in Saint Clair for January

The chart shows the monthly maximum UV Index (UVI) for Saint Clair 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 Clair typically reaches 2, which falls under the low exposure category.

Data source: Saint Clair 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 Clair Compares to Other Months

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

This table compares monthly weather conditions in Saint Clair, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	70 mm (2.8 inches)	88%	low
February Weather	-2°C (29°F)	73 mm (2.9 inches)	87%	moderate
March Weather	2°C (36°F)	70 mm (2.7 inches)	85%	moderate
April Weather	7°C (46°F)	97 mm (3.8 inches)	86%	very high
May Weather	14°C (58°F)	105 mm (4.1 inches)	80%	very high
June Weather	20°C (69°F)	93 mm (3.6 inches)	80%	very high
July Weather	23°C (74°F)	82 mm (3.2 inches)	80%	very high
August Weather	22°C (73°F)	80 mm (3.2 inches)	80%	very high
September Weather	19°C (66°F)	77 mm (3.0 inches)	80%	high
October Weather	12°C (55°F)	113 mm (4.5 inches)	84%	moderate
November Weather	4°C (40°F)	82 mm (3.2 inches)	89%	moderate
December Weather	0°C (33°F)	63 mm (2.5 inches)	86%	low