December Weather in Youngsville, United States

Last updated: June 24, 2025

In December, the average temperature in Youngsville, United States hovers around 14°C (58°F). However, be prepared for a broad range, as minimum temperatures can dip to -2°C (29°F) while the mercury can rise to a maximum of 28°C (83°F). During this time, expect about 103 mm (4.0 in) of precipitation spread over 10 days, with humidity levels averaging around 84%.

December Temperature in Youngsville

In December in Youngsville, the average temperature is 14°C (58°F). Maximum temperatures can reach up to 28°C (83°F), while minimum temperatures can drop as low as -2°C (29°F). This diverse range of temperatures makes Youngsville a captivating destination for travelers seeking a variety of experiences.

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

The chart illustrates December temperature patterns in Youngsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Youngsville, December typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around -2°C (29°F).

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

December Precipitation in Youngsville

In Youngsville in December, the precipitation amount is 103 mm (4.0 in) over a span of 10 days.

December Precipitation Trends in Youngsville

The chart displays monthly precipitation patterns in Youngsville, 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 Youngsville, December typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 10 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 Youngsville

In Youngsville in December humidity is 84%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket enveloping you, making every step feel sluggish and damp, which can be uncomfortable for traveling.

December Average Humidity in Youngsville

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

In Youngsville in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Youngsville.

Maximum UV Index Levels in Youngsville for December

The chart shows the monthly maximum UV Index (UVI) for Youngsville 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 Youngsville typically reaches 5, which falls under the moderate exposure category.

Data source: Youngsville 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 Youngsville Compares to Other Months

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

This table compares monthly weather conditions in Youngsville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	95 mm (3.7 inches)	81%	moderate
February Weather	15°C (59°F)	99 mm (3.9 inches)	81%	very high
March Weather	18°C (65°F)	66 mm (2.6 inches)	79%	very high
April Weather	21°C (69°F)	128 mm (5.0 inches)	81%	extreme
May Weather	25°C (77°F)	138 mm (5.4 inches)	77%	extreme
June Weather	27°C (82°F)	165 mm (6.5 inches)	74%	extreme
July Weather	28°C (83°F)	189 mm (7.4 inches)	74%	extreme
August Weather	28°C (83°F)	170 mm (6.7 inches)	73%	extreme
September Weather	26°C (80°F)	125 mm (4.9 inches)	79%	extreme
October Weather	23°C (73°F)	97 mm (3.8 inches)	77%	very high
November Weather	16°C (61°F)	81 mm (3.2 inches)	81%	high
December Weather	14°C (58°F)	103 mm (4.0 inches)	84%	moderate