December Weather in Hallettsville, United States

Last updated: June 24, 2025

In December, the average temperature in Hallettsville, United States hovers around 14°C (58°F). This month can bring a diverse range of temperatures, with lows dipping to -3°C (27°F) and highs reaching up to 30°C (86°F). You can expect approximately 76 mm (3.0 in) of precipitation spread over 8 days, accompanied by a notably high average humidity of 84%.

December Temperature in Hallettsville

In December, in Hallettsville, the average temperature is 14°C (58°F). Maximum temperatures can reach 30°C (86°F), while minimums can drop to as low as -3°C (27°F). This variability makes it essential to pack for both warm and cool weather when visiting.

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

The chart illustrates December temperature patterns in Hallettsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hallettsville, December typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (86°F) and lows dropping to around -3°C (27°F).

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

December Precipitation in Hallettsville

In Hallettsville in December, the precipitation amount is 76 mm (3.0 in) spread over a duration of 8 days.

December Precipitation Trends in Hallettsville

The chart displays monthly precipitation patterns in Hallettsville, 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 Hallettsville, December typically receives around 76 mm (3.0 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 Hallettsville

In Hallettsville 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 Hallettsville

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

In Hallettsville 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 Hallettsville.

Maximum UV Index Levels in Hallettsville for December

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

Data source: Hallettsville 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 Hallettsville Compares to Other Months

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

This table compares monthly weather conditions in Hallettsville, 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)	60 mm (2.4 inches)	78%	moderate
February Weather	14°C (57°F)	70 mm (2.7 inches)	81%	very high
March Weather	19°C (66°F)	69 mm (2.7 inches)	76%	very high
April Weather	21°C (71°F)	101 mm (4.0 inches)	79%	extreme
May Weather	26°C (78°F)	134 mm (5.3 inches)	79%	extreme
June Weather	28°C (83°F)	105 mm (4.1 inches)	74%	extreme
July Weather	29°C (85°F)	93 mm (3.6 inches)	71%	extreme
August Weather	30°C (86°F)	116 mm (4.6 inches)	68%	extreme
September Weather	27°C (81°F)	110 mm (4.3 inches)	73%	very high
October Weather	22°C (73°F)	75 mm (3.0 inches)	75%	very high
November Weather	17°C (63°F)	66 mm (2.6 inches)	78%	high
December Weather	14°C (58°F)	76 mm (3.0 inches)	84%	moderate