December Weather in Sebec, United States

Last updated: June 24, 2025

In December, the average temperature in Sebec, United States hovers around -5°C (24°F). While it can plummet to a chilling -24°C (-12°F) at its lowest, temperatures can also rise to a pleasant 15°C (59°F) on warmer days. Expect around 119 mm (4.7 in) of precipitation spread across 11 days, contributing to an average humidity of 84%.

December Temperature in Sebec

In December in Sebec, the average temperature is -5°C (24°F), with maximums reaching up to 15°C (59°F) and minimums dropping as low as -24°C (-12°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates December temperature patterns in Sebec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sebec, December typically has an average temperature of -5°C (24°F), with highs reaching up to 15°C (59°F) and lows dropping to around -24°C (-12°F).

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

December Precipitation in Sebec

In Sebec in December, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

December Precipitation Trends in Sebec

The chart displays monthly precipitation patterns in Sebec, 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 Sebec, December typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 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 Sebec

In Sebec in December, humidity is 84%. With an average temperature of -5°C (24°F), this humidity feels like an icy blanket wrapped around you, making the air feel even colder and more biting, which can be quite uncomfortable for traveling.

December Average Humidity in Sebec

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

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

Maximum UV Index Levels in Sebec for December

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

Data source: Sebec 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 Sebec Compares to Other Months

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

This table compares monthly weather conditions in Sebec, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	92 mm (3.6 inches)	88%	low
February Weather	-6°C (21°F)	85 mm (3.3 inches)	88%	moderate
March Weather	-2°C (29°F)	77 mm (3.0 inches)	85%	moderate
April Weather	5°C (42°F)	132 mm (5.2 inches)	81%	high
May Weather	12°C (54°F)	100 mm (3.9 inches)	76%	very high
June Weather	18°C (64°F)	83 mm (3.3 inches)	74%	very high
July Weather	21°C (69°F)	102 mm (4.0 inches)	74%	very high
August Weather	20°C (68°F)	89 mm (3.5 inches)	74%	very high
September Weather	16°C (61°F)	84 mm (3.3 inches)	77%	high
October Weather	9°C (49°F)	135 mm (5.3 inches)	82%	moderate
November Weather	2°C (35°F)	120 mm (4.7 inches)	85%	moderate
December Weather	-5°C (24°F)	119 mm (4.7 inches)	84%	low