December Weather in Blanco, United States

Last updated: June 24, 2025

In Blanco, United States, the average temperature in December is a cool 12°C (54°F). Expect a minimum chill of -4°C (25°F) and occasional highs reaching 28°C (82°F). This month also brings about 51 mm (2.0 in) of precipitation spread over approximately 6 days, contributing to an average humidity level of 86%. Perfect for cozy indoor activities!

December Temperature in Blanco

In December in Blanco, the average temperature is 12°C (54°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -4°C (25°F). Travelers should prepare for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Blanco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blanco, December typically has an average temperature of 12°C (54°F), with highs reaching up to 28°C (82°F) and lows dropping to around -4°C (25°F).

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

December Precipitation in Blanco

In Blanco in December, the precipitation amount is 51 mm (2.0 in) over the course of 6 days.

December Precipitation Trends in Blanco

The chart displays monthly precipitation patterns in Blanco, 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 Blanco, December typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 6 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 Blanco

In Blanco in December, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

December Average Humidity in Blanco

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

In Blanco 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 Blanco.

Maximum UV Index Levels in Blanco for December

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

Data source: Blanco 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 Blanco Compares to Other Months

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

This table compares monthly weather conditions in Blanco, 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 (51°F)	43 mm (1.7 inches)	79%	moderate
February Weather	11°C (53°F)	60 mm (2.4 inches)	79%	very high
March Weather	17°C (63°F)	62 mm (2.4 inches)	74%	very high
April Weather	20°C (68°F)	74 mm (2.9 inches)	76%	extreme
May Weather	24°C (75°F)	135 mm (5.3 inches)	81%	extreme
June Weather	27°C (81°F)	81 mm (3.2 inches)	76%	extreme
July Weather	28°C (83°F)	58 mm (2.3 inches)	66%	extreme
August Weather	29°C (84°F)	73 mm (2.9 inches)	58%	extreme
September Weather	26°C (78°F)	107 mm (4.2 inches)	65%	extreme
October Weather	21°C (69°F)	88 mm (3.4 inches)	74%	very high
November Weather	15°C (59°F)	36 mm (1.4 inches)	81%	high
December Weather	12°C (54°F)	51 mm (2.0 inches)	86%	moderate