January Weather in Saint Paul, United States

Last updated: June 24, 2025

In January, the average temperature in Saint Paul, United States hovers around -4°C (26°F), with extremes reaching as low as -24°C (-10°F) and climbing up to a maximum of 15°C (59°F). Expect an average precipitation of 25 mm (1.0 in) spread across 3 days, while the air maintains a relatively high humidity level of 73%.

January Temperature in Saint Paul

In January in Saint Paul, the average temperature is -4°C (26°F). Maximum temperatures can reach 15°C (59°F), while minimums can drop as low as -24°C (-10°F). Travelers should be prepared for a wide range of temperatures and dress accordingly.

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

The chart illustrates January temperature patterns in Saint Paul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Paul, January typically has an average temperature of -4°C (26°F), with highs reaching up to 15°C (59°F) and lows dropping to around -24°C (-10°F).

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

January Precipitation in Saint Paul

In Saint Paul in January, the precipitation amount is 25 mm (1.0 in) over the course of 3 days.

January Precipitation Trends in Saint Paul

The chart displays monthly precipitation patterns in Saint Paul, 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 Paul, January typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 3 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 Paul

In Saint Paul in January humidity is 73%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that cuts through layers of clothing, making outdoor activities less enjoyable and travel quite uncomfortable.

January Average Humidity in Saint Paul

This chart illustrates the average monthly humidity levels in Saint Paul, 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 Paul is approximately 73%, 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 Paul

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

Maximum UV Index Levels in Saint Paul for January

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

Data source: Saint Paul 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 Paul Compares to Other Months

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

This table compares monthly weather conditions in Saint Paul, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	25 mm (1.0 inches)	73%	moderate
February Weather	-4°C (25°F)	18 mm (0.7 inches)	81%	moderate
March Weather	4°C (40°F)	86 mm (3.4 inches)	69%	high
April Weather	9°C (49°F)	56 mm (2.2 inches)	71%	very high
May Weather	16°C (61°F)	144 mm (5.7 inches)	80%	very high
June Weather	23°C (74°F)	85 mm (3.3 inches)	83%	extreme
July Weather	25°C (77°F)	66 mm (2.6 inches)	84%	very high
August Weather	23°C (74°F)	84 mm (3.3 inches)	84%	very high
September Weather	20°C (68°F)	57 mm (2.2 inches)	77%	very high
October Weather	10°C (51°F)	88 mm (3.5 inches)	72%	high
November Weather	4°C (40°F)	21 mm (0.8 inches)	80%	moderate
December Weather	-1°C (30°F)	41 mm (1.6 inches)	79%	moderate