December Weather in Mentor-on-the-Lake, United States

Last updated: June 24, 2025

In December, the average temperature in Mentor-on-the-Lake, United States hovers around 2°C (36°F), bringing a chill to the air. Expect temperatures to dip as low as -11°C (13°F), while occasionally reaching a maximum of 14°C (57°F). Amidst this cool climate, 116 mm (4.6 in) of precipitation is likely to occur over 17 days, contributing to a high average humidity of 86%. Stay warm and prepared!

December Temperature in Mentor-on-the-Lake

In December in Mentor-on-the-Lake, the average temperature is 2°C (36°F). Maximum temperatures can reach 14°C (57°F), while minimums can drop as low as -11°C (13°F). Travelers should be prepared for a wide range of temperatures during this time of year.

December Weather in Mentor-on-the-Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mentor-on-the-Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mentor-on-the-Lake, December typically has an average temperature of 2°C (36°F), with highs reaching up to 14°C (57°F) and lows dropping to around -11°C (13°F).

Data source: Temperature data for Mentor-on-the-Lake generated using information from the Copernicus Climate Change Service.

December Precipitation in Mentor-on-the-Lake

In Mentor-on-the-Lake in December, the precipitation amount is 116 mm (4.6 in) spread over 17 days.

December Precipitation Trends in Mentor-on-the-Lake

The chart displays monthly precipitation patterns in Mentor-on-the-Lake, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Mentor-on-the-Lake, December typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Mentor-on-the-Lake

In Mentor-on-the-Lake in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in Mentor-on-the-Lake

This chart illustrates the average monthly humidity levels in Mentor-on-the-Lake, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Mentor-on-the-Lake is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mentor-on-the-Lake

In Mentor-on-the-Lake in December, 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 Mentor-on-the-Lake, you can visit Hourly UV Index in Mentor-on-the-Lake.

Maximum UV Index Levels in Mentor-on-the-Lake for December

The chart shows the monthly maximum UV Index (UVI) for Mentor-on-the-Lake in December, 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 December, the maximum UV index in Mentor-on-the-Lake typically reaches 2, which falls under the low exposure category.

Data source: Mentor-on-the-Lake December 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 December Weather in Mentor-on-the-Lake Compares to Other Months

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

This table compares monthly weather conditions in Mentor-on-the-Lake, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	100 mm (4.0 inches)	88%	moderate
February Weather	-1°C (31°F)	101 mm (4.0 inches)	88%	moderate
March Weather	2°C (36°F)	99 mm (3.9 inches)	87%	high
April Weather	7°C (44°F)	113 mm (4.5 inches)	87%	very high
May Weather	13°C (56°F)	115 mm (4.5 inches)	81%	very high
June Weather	19°C (67°F)	98 mm (3.9 inches)	83%	very high
July Weather	23°C (73°F)	113 mm (4.5 inches)	82%	very high
August Weather	22°C (73°F)	83 mm (3.3 inches)	76%	very high
September Weather	20°C (68°F)	95 mm (3.7 inches)	77%	very high
October Weather	14°C (58°F)	140 mm (5.5 inches)	82%	high
November Weather	6°C (43°F)	133 mm (5.2 inches)	89%	moderate
December Weather	2°C (36°F)	116 mm (4.6 inches)	86%	low