January Weather in Cottage Grove, United States

Last updated: June 24, 2025

In January, the average temperature in Cottage Grove, United States is a brisk -8°C (17°F). Prepare for chilly extremes, as temperatures can drop as low as -34°C (-28°F) and occasionally rise to a maximum of 7°C (45°F). During this month, expect about 31 mm (1.2 in) of precipitation spread over 5 days, coupled with an average humidity of a high 87%.

January Temperature in Cottage Grove

In January in Cottage Grove, the average temperature is -8°C (17°F), with maximums reaching 7°C (45°F) and minimums dropping as low as -34°C (-28°F). Travelers should prepare for extreme cold and dress accordingly to fully enjoy their visit.

January Weather in Cottage Grove: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Cottage Grove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cottage Grove, January typically has an average temperature of -8°C (17°F), with highs reaching up to 7°C (45°F) and lows dropping to around -34°C (-28°F).

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

January Precipitation in Cottage Grove

In Cottage Grove in January, the precipitation amount is 31 mm (1.2 in) spread over 5 days.

January Precipitation Trends in Cottage Grove

The chart displays monthly precipitation patterns in Cottage Grove, 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 Cottage Grove, January typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 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 Cottage Grove

In Cottage Grove in January, humidity is 87%. With an average temperature of -8°C (17°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and every breath feel heavy.

January Average Humidity in Cottage Grove

This chart illustrates the average monthly humidity levels in Cottage Grove, 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 Cottage Grove 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 Cottage Grove

In Cottage Grove 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 Cottage Grove, you can visit Hourly UV Index in Cottage Grove.

Maximum UV Index Levels in Cottage Grove for January

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

Data source: Cottage Grove 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 Cottage Grove Compares to Other Months

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

This table compares monthly weather conditions in Cottage Grove, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	31 mm (1.2 inches)	87%	low
February Weather	-8°C (17°F)	39 mm (1.5 inches)	90%	moderate
March Weather	1°C (33°F)	61 mm (2.4 inches)	85%	moderate
April Weather	6°C (44°F)	87 mm (3.4 inches)	84%	high
May Weather	15°C (59°F)	143 mm (5.6 inches)	78%	very high
June Weather	22°C (71°F)	103 mm (4.0 inches)	80%	very high
July Weather	23°C (75°F)	108 mm (4.2 inches)	81%	very high
August Weather	21°C (71°F)	124 mm (4.9 inches)	81%	very high
September Weather	18°C (64°F)	118 mm (4.7 inches)	81%	high
October Weather	9°C (49°F)	97 mm (3.8 inches)	84%	moderate
November Weather	1°C (34°F)	38 mm (1.5 inches)	88%	moderate
December Weather	-5°C (24°F)	52 mm (2.0 inches)	84%	low