December Weather in Reisterstown, United States

Last updated: June 24, 2025

In December, the average temperature in Reisterstown, United States hovers around 4°C (39°F). Expect a chill in the air, with minimum temperatures dipping as low as -12°C (11°F) and peaking at a mild 19°C (66°F). With 100 mm (3.9 in) of precipitation spread over 9 days, a raincoat might come in handy. Plus, the average humidity sits at a notable 84%, adding to the atmosphere of this captivating locale.

December Temperature in Reisterstown

In December in Reisterstown, the average temperature is 4°C (39°F). Maximum temperatures can reach 19°C (66°F), while minimums can drop as low as -12°C (11°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Reisterstown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Reisterstown, December typically has an average temperature of 4°C (39°F), with highs reaching up to 19°C (66°F) and lows dropping to around -12°C (11°F).

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

December Precipitation in Reisterstown

In Reisterstown in December, the precipitation amount is 100 mm (3.9 in) spread over 9 days.

December Precipitation Trends in Reisterstown

The chart displays monthly precipitation patterns in Reisterstown, 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 Reisterstown, December typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Reisterstown

In Reisterstown in December, humidity is 84%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions uncomfortable and demanding more layers than you anticipate while traveling.

December Average Humidity in Reisterstown

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

In Reisterstown 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 Reisterstown, you can check the information here.

Maximum UV Index Levels in Reisterstown for December

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

Data source: Reisterstown 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 Reisterstown Compares to Other Months

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

This table compares monthly weather conditions in Reisterstown, 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 (35°F)	63 mm (2.5 inches)	84%	moderate
February Weather	4°C (39°F)	98 mm (3.9 inches)	83%	moderate
March Weather	7°C (44°F)	94 mm (3.7 inches)	83%	high
April Weather	12°C (55°F)	104 mm (4.1 inches)	81%	very high
May Weather	18°C (64°F)	148 mm (5.8 inches)	78%	very high
June Weather	23°C (73°F)	129 mm (5.1 inches)	79%	very high
July Weather	26°C (79°F)	161 mm (6.4 inches)	74%	very high
August Weather	24°C (76°F)	165 mm (6.5 inches)	72%	very high
September Weather	21°C (70°F)	121 mm (4.8 inches)	75%	very high
October Weather	16°C (60°F)	109 mm (4.3 inches)	81%	high
November Weather	7°C (46°F)	90 mm (3.6 inches)	85%	moderate
December Weather	4°C (39°F)	100 mm (3.9 inches)	84%	moderate