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December Weather in Mendon, United States

Last updated: June 24, 2025

In December, the average temperature in Mendon, United States hovers around 2°C (36°F), with a range that can dip to a brisk -20°C (-3°F) or peak at a comfortable 23°C (73°F). Expect 45 mm (1.8 in) of precipitation spread over about 6 days, contributing to a notably high average humidity of 86%. This blend of temperatures and moisture creates a unique atmosphere for locals and travelers alike!

December Temperature in Mendon

In December, in Mendon, the average temperature is 2°C (36°F). The maximum can reach 23°C (73°F), while the minimum can drop as low as -20°C (-3°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Mendon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mendon, December typically has an average temperature of 2°C (36°F), with highs reaching up to 23°C (73°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec283144526575787570574236
Data source: Temperature data for Mendon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Mendon

In Mendon in December, the precipitation amount is 45 mm (1.8 in) over the course of 6 days.

December Precipitation Trends in Mendon

The chart displays monthly precipitation patterns in Mendon, 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 Mendon, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec61621181031641128596891045645
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mendon

In Mendon 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 Mendon

This chart illustrates the average monthly humidity levels in Mendon, 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 Mendon is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mendon

In Mendon in December, 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 Mendon, you can check the information here.

Maximum UV Index Levels in Mendon for December

The chart shows the monthly maximum UV Index (UVI) for Mendon 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 Mendon typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111198643
Data source: Mendon 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 Mendon Compares to Other Months

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

This table compares monthly weather conditions in Mendon, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)61 mm (2.4 inches)82%moderate
February Weather-1°C (31°F)62 mm (2.4 inches)80%moderate
March Weather6°C (44°F)118 mm (4.7 inches)80%high
April Weather11°C (53°F)103 mm (4.1 inches)80%very high
May Weather18°C (66°F)164 mm (6.5 inches)82%very high
June Weather24°C (76°F)112 mm (4.4 inches)83%extreme
July Weather26°C (79°F)85 mm (3.3 inches)81%extreme
August Weather24°C (75°F)96 mm (3.8 inches)80%very high
September Weather21°C (71°F)89 mm (3.5 inches)76%very high
October Weather14°C (57°F)104 mm (4.1 inches)76%high
November Weather5°C (42°F)56 mm (2.2 inches)85%moderate
December Weather2°C (36°F)45 mm (1.8 inches)86%moderate

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