December Weather in Cotulla, United States

Last updated: June 24, 2025

In December, the average temperature in Cotulla, United States is a mild 15°C (60°F). However, temperatures can vary widely, dipping as low as -2°C (29°F) and soaring up to 34°C (93°F). Expect about 23 mm (0.9 in) of precipitation spread over approximately 3 days, with the air feeling quite humid at an average of 86%.

December Temperature in Cotulla

In December in Cotulla, the average temperature is 15°C (60°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures, making it essential to pack for both warm days and chilly nights during your travels.

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

The chart illustrates December temperature patterns in Cotulla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cotulla, December typically has an average temperature of 15°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around -2°C (29°F).

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

December Precipitation in Cotulla

In Cotulla in December, the precipitation amount is 23 mm (0.9 in) over the course of 3 days.

December Precipitation Trends in Cotulla

The chart displays monthly precipitation patterns in Cotulla, 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 Cotulla, December typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 3 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 Cotulla

In Cotulla in December, humidity is 86%. With an average temperature of 15°C (60°F), this humidity feels like a warm, muggy embrace that can make exploring the area feel sticky and heavy, often leading you to seek shade or cool refreshments more frequently as you navigate the sights.

December Average Humidity in Cotulla

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

In Cotulla 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 Cotulla.

Maximum UV Index Levels in Cotulla for December

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

Data source: Cotulla 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 Cotulla Compares to Other Months

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

This table compares monthly weather conditions in Cotulla, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (57°F)	22 mm (0.9 inches)	79%	moderate
February Weather	16°C (60°F)	29 mm (1.1 inches)	79%	very high
March Weather	21°C (70°F)	33 mm (1.3 inches)	74%	very high
April Weather	24°C (75°F)	46 mm (1.8 inches)	76%	extreme
May Weather	27°C (82°F)	108 mm (4.2 inches)	81%	extreme
June Weather	30°C (87°F)	45 mm (1.8 inches)	76%	extreme
July Weather	31°C (89°F)	48 mm (1.9 inches)	66%	extreme
August Weather	32°C (90°F)	31 mm (1.2 inches)	58%	extreme
September Weather	29°C (84°F)	116 mm (4.6 inches)	65%	extreme
October Weather	24°C (76°F)	52 mm (2.0 inches)	74%	very high
November Weather	18°C (65°F)	30 mm (1.2 inches)	81%	high
December Weather	15°C (60°F)	23 mm (0.9 inches)	86%	moderate