December Weather in Richwood, United States

Last updated: June 24, 2025

In December, the average temperature in Richwood, United States hovers around 2°C (36°F). During this month, temperatures can range from a chilly -17°C (2°F) to a mild 18°C (65°F). Expect considerable precipitation with an average of 131 mm (5.2 in) spread over 15 days, contributing to a high average humidity of 86%.

December Temperature in Richwood

In December in Richwood, the average temperature is 2°C (36°F). Maximums can reach 18°C (65°F) and minimums can be as low as -17°C (2°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.

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

The chart illustrates December temperature patterns in Richwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richwood, December typically has an average temperature of 2°C (36°F), with highs reaching up to 18°C (65°F) and lows dropping to around -17°C (2°F).

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

December Precipitation in Richwood

In Richwood in December, the precipitation amount is 131 mm (5.2 in) over a span of 15 days.

December Precipitation Trends in Richwood

The chart displays monthly precipitation patterns in Richwood, 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 Richwood, December typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 15 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 Richwood

In Richwood 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 Richwood

This chart illustrates the average monthly humidity levels in Richwood, 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 Richwood is approximately 86%, 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 Richwood

In Richwood 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 Richwood, you can check the information here.

Maximum UV Index Levels in Richwood for December

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

Data source: Richwood 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 Richwood Compares to Other Months

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

This table compares monthly weather conditions in Richwood, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	109 mm (4.3 inches)	88%	moderate
February Weather	2°C (36°F)	170 mm (6.7 inches)	88%	high
March Weather	5°C (41°F)	129 mm (5.1 inches)	88%	very high
April Weather	10°C (50°F)	157 mm (6.2 inches)	86%	very high
May Weather	15°C (60°F)	180 mm (7.1 inches)	82%	extreme
June Weather	19°C (66°F)	143 mm (5.6 inches)	84%	extreme
July Weather	21°C (70°F)	122 mm (4.8 inches)	82%	extreme
August Weather	20°C (68°F)	132 mm (5.2 inches)	73%	very high
September Weather	18°C (64°F)	111 mm (4.4 inches)	73%	very high
October Weather	12°C (55°F)	135 mm (5.3 inches)	81%	high
November Weather	5°C (41°F)	92 mm (3.6 inches)	89%	moderate
December Weather	2°C (36°F)	131 mm (5.2 inches)	86%	moderate