December Weather in Vermont, United States

Last updated: June 24, 2025

In Vermont, United States, the average temperature in December hovers around 2°C (35°F). However, temperatures can dip as low as -20°C (-4°F) or rise to a pleasant 22°C (71°F). Expect approximately 49 mm (1.9 in) of precipitation over 7 days, accompanied by a high humidity level of 84%. Be prepared for fluctuating weather while enjoying the unique charm of the season!

December Temperature in Vermont

In December in Vermont, the average temperature is 2°C (35°F), with a maximum reaching 22°C (71°F) and a minimum dipping as low as -20°C (-4°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly to enjoy their stay comfortably.

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

The chart illustrates December temperature patterns in Vermont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vermont, December typically has an average temperature of 2°C (35°F), with highs reaching up to 22°C (71°F) and lows dropping to around -20°C (-4°F).

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

December Precipitation in Vermont

In Vermont in December, the precipitation amount is 49 mm (1.9 in) over the course of 7 days.

December Precipitation Trends in Vermont

The chart displays monthly precipitation patterns in Vermont, 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 Vermont, December typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 7 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 Vermont

In Vermont in December, humidity is 84%. With an average temperature of 2°C (35°F), this humidity feels like an uncomfortable chill that penetrates your bones, making outdoor travel quite brisk and uninviting.

December Average Humidity in Vermont

This chart illustrates the average monthly humidity levels in Vermont, 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 Vermont is approximately 84%, 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 Vermont

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

Maximum UV Index Levels in Vermont for December

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

Data source: Vermont 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 Vermont Compares to Other Months

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

This table compares monthly weather conditions in Vermont, 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)	61 mm (2.4 inches)	81%	moderate
February Weather	-1°C (31°F)	67 mm (2.6 inches)	81%	moderate
March Weather	6°C (43°F)	125 mm (4.9 inches)	81%	high
April Weather	11°C (52°F)	104 mm (4.1 inches)	82%	very high
May Weather	18°C (65°F)	166 mm (6.5 inches)	78%	very high
June Weather	24°C (75°F)	132 mm (5.2 inches)	81%	extreme
July Weather	25°C (78°F)	97 mm (3.8 inches)	79%	very high
August Weather	24°C (75°F)	91 mm (3.6 inches)	77%	very high
September Weather	21°C (70°F)	77 mm (3.0 inches)	78%	very high
October Weather	13°C (56°F)	107 mm (4.2 inches)	78%	high
November Weather	5°C (41°F)	58 mm (2.3 inches)	87%	moderate
December Weather	2°C (35°F)	49 mm (1.9 inches)	84%	low