December Weather in Allendale, United States

Last updated: June 24, 2025

In December, the average temperature in Allendale, United States hovers around 10°C (50°F). Expect a range with minimums dipping to 0°C (32°F) and maximums reaching up to 23°C (75°F). During this month, anticipate around 85 mm (3.3 in) of precipitation spread over 8 days, complemented by an average humidity of 83%.

December Temperature in Allendale

In December in Allendale, the average temperature is 10°C (50°F). Maximums can reach 23°C (75°F), while minimums can drop to as low as 0°C (32°F). Be prepared for a range of temperatures during your travels, bringing layers to stay comfortable throughout the day.

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

The chart illustrates December temperature patterns in Allendale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Allendale, December typically has an average temperature of 10°C (50°F), with highs reaching up to 23°C (75°F) and lows dropping to around 0°C (32°F).

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

December Precipitation in Allendale

In Allendale in December, the precipitation amount is 85 mm (3.3 in) over the course of 8 days.

December Precipitation Trends in Allendale

The chart displays monthly precipitation patterns in Allendale, 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 Allendale, December typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 8 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 Allendale

In Allendale in December, humidity is 83%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less comfortable and prompting visitors to seek cozy indoor activities.

December Average Humidity in Allendale

This chart illustrates the average monthly humidity levels in Allendale, 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 Allendale is approximately 83%, 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 Allendale

In Allendale 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 Allendale, you can check the information here.

Maximum UV Index Levels in Allendale for December

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

Data source: Allendale 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 Allendale Compares to Other Months

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

This table compares monthly weather conditions in Allendale, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	124 mm (4.9 inches)	84%	moderate
February Weather	12°C (54°F)	106 mm (4.2 inches)	84%	moderate
March Weather	13°C (56°F)	79 mm (3.1 inches)	83%	high
April Weather	17°C (62°F)	30 mm (1.2 inches)	81%	very high
May Weather	20°C (68°F)	18 mm (0.7 inches)	74%	very high
June Weather	24°C (75°F)	2 mm (0.1 inches)	64%	extreme
July Weather	25°C (77°F)	0 mm (0.0 inches)	44%	extreme
August Weather	24°C (76°F)	0 mm (0.0 inches)	36%	very high
September Weather	23°C (74°F)	1 mm (0.0 inches)	44%	very high
October Weather	19°C (66°F)	27 mm (1.1 inches)	65%	high
November Weather	13°C (56°F)	38 mm (1.5 inches)	84%	moderate
December Weather	10°C (50°F)	85 mm (3.3 inches)	83%	moderate