December Weather in Mentone, United States

Last updated: June 24, 2025

In December, the average temperature in Mentone, United States hovers around 1°C (34°F). Expect conditions to vary, with minimums plummeting to -22°C (-7°F) and maximums peaking at 17°C (62°F). Rain may grace the area with a total precipitation of 62 mm (2.4 in) over 8 days, contributing to a high average humidity of 86%.

December Temperature in Mentone

In December in Mentone, the average temperature is 1°C (34°F). Maximums can reach 17°C (62°F) and minimums can be as low as -22°C (-7°F). Be prepared for a wide range of temperatures when traveling during this time.

December Weather in Mentone: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mentone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mentone, December typically has an average temperature of 1°C (34°F), with highs reaching up to 17°C (62°F) and lows dropping to around -22°C (-7°F).

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

December Precipitation in Mentone

In Mentone in December, the precipitation amount is 62 mm (2.4 in) over the course of 8 days.

December Precipitation Trends in Mentone

The chart displays monthly precipitation patterns in Mentone, 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 Mentone, December typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 8 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 Mentone

In Mentone in December, humidity is 86%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making outdoor adventures brisk and invigorating but challenging for travel.

December Average Humidity in Mentone

This chart illustrates the average monthly humidity levels in Mentone, 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 Mentone 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 Mentone

In Mentone 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 Mentone, you can visit Hourly UV Index in Mentone.

Maximum UV Index Levels in Mentone for December

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

Data source: Mentone 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 Mentone Compares to Other Months

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

This table compares monthly weather conditions in Mentone, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	73 mm (2.9 inches)	85%	moderate
February Weather	-1°C (30°F)	77 mm (3.0 inches)	85%	moderate
March Weather	4°C (40°F)	104 mm (4.1 inches)	86%	high
April Weather	10°C (49°F)	101 mm (4.0 inches)	87%	very high
May Weather	17°C (62°F)	140 mm (5.5 inches)	81%	very high
June Weather	22°C (72°F)	112 mm (4.4 inches)	82%	very high
July Weather	24°C (76°F)	119 mm (4.7 inches)	81%	very high
August Weather	23°C (73°F)	103 mm (4.1 inches)	79%	very high
September Weather	20°C (68°F)	74 mm (2.9 inches)	78%	very high
October Weather	13°C (56°F)	116 mm (4.5 inches)	81%	high
November Weather	5°C (41°F)	80 mm (3.2 inches)	89%	moderate
December Weather	1°C (34°F)	62 mm (2.4 inches)	86%	low