December Weather in Eddystone, United States

Last updated: June 24, 2025

In Eddystone, United States, the average temperature in December hovers around 4°C (40°F), with a notable range from a brisk -12°C (11°F) to a comfortable 20°C (68°F). During this month, expect 97 mm (3.8 in) of precipitation spread over approximately 9 days, contributing to a relatively high average humidity of 84%.

December Temperature in Eddystone

In December in Eddystone, the average temperature is 4°C (40°F), with maximums reaching 20°C (68°F) and minimums plummeting to -12°C (11°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for comfort during their visit.

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

The chart illustrates December temperature patterns in Eddystone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Eddystone, December typically has an average temperature of 4°C (40°F), with highs reaching up to 20°C (68°F) and lows dropping to around -12°C (11°F).

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

December Precipitation in Eddystone

In Eddystone in December, the total precipitation amount reaches 97 mm (3.8 in) over the course of 9 days.

December Precipitation Trends in Eddystone

The chart displays monthly precipitation patterns in Eddystone, 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 Eddystone, December typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 9 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 Eddystone

In Eddystone in December, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

December Average Humidity in Eddystone

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

In Eddystone 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 Eddystone, you can check the information here.

Maximum UV Index Levels in Eddystone for December

The chart shows the monthly maximum UV Index (UVI) for Eddystone 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 Eddystone typically reaches 3, which falls under the moderate exposure category.

Data source: Eddystone 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 Eddystone Compares to Other Months

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

This table compares monthly weather conditions in Eddystone, 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 (36°F)	59 mm (2.3 inches)	84%	moderate
February Weather	4°C (40°F)	104 mm (4.1 inches)	83%	moderate
March Weather	7°C (45°F)	105 mm (4.1 inches)	83%	high
April Weather	13°C (55°F)	98 mm (3.9 inches)	81%	very high
May Weather	18°C (65°F)	131 mm (5.2 inches)	78%	very high
June Weather	23°C (74°F)	113 mm (4.4 inches)	79%	very high
July Weather	26°C (79°F)	128 mm (5.0 inches)	74%	very high
August Weather	25°C (77°F)	127 mm (5.0 inches)	72%	very high
September Weather	22°C (71°F)	91 mm (3.6 inches)	75%	very high
October Weather	16°C (62°F)	112 mm (4.4 inches)	81%	high
November Weather	8°C (47°F)	80 mm (3.2 inches)	85%	moderate
December Weather	4°C (40°F)	97 mm (3.8 inches)	84%	moderate