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December Weather in Del Rio, United States

Last updated: June 24, 2025

In December, the average temperature in Del Rio, United States hovers around 13°C (56°F), with a minimum dropping to -2°C (28°F) and occasional highs reaching 31°C (88°F). Expect about 22 mm (0.9 in) of precipitation over 3 days, while the average humidity remains high at 87%. Be prepared for a mix of cool and warm days amidst the moisture!

December Temperature in Del Rio

In December in Del Rio, the average temperature is 13°C (56°F). The maximum can reach 31°C (88°F), while the minimum can be as low as -2°C (28°F). This variety in temperatures makes it essential for travelers to pack layers to stay comfortable in both warm and cool conditions.

December Weather in Del Rio: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Del Rio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Del Rio, December typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (88°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec535767738186888882736256
Data source: Temperature data for Del Rio generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Del Rio

In Del Rio in December, the precipitation amount is 22 mm (0.9 in) over a span of 3 days.

December Precipitation Trends in Del Rio

The chart displays monthly precipitation patterns in Del Rio, 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 Del Rio, December typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2227293878433126121591222
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Del Rio

In Del Rio in December humidity is 87%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it challenging to explore comfortably.

December Average Humidity in Del Rio

This chart illustrates the average monthly humidity levels in Del Rio, 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 Del Rio is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%70%73%79%78%65%55%68%77%84%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Del Rio

In Del Rio 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 Del Rio.

Maximum UV Index Levels in Del Rio for December

The chart shows the monthly maximum UV Index (UVI) for Del Rio 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 Del Rio typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5810111212121211965
Data source: Del Rio 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 Del Rio Compares to Other Months

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

This table compares monthly weather conditions in Del Rio, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)22 mm (0.9 inches)76%moderate
February Weather14°C (57°F)27 mm (1.0 inches)75%very high
March Weather19°C (67°F)29 mm (1.1 inches)70%very high
April Weather23°C (74°F)38 mm (1.5 inches)73%extreme
May Weather27°C (81°F)78 mm (3.1 inches)79%extreme
June Weather30°C (86°F)43 mm (1.7 inches)78%extreme
July Weather31°C (88°F)31 mm (1.2 inches)65%extreme
August Weather31°C (88°F)26 mm (1.0 inches)55%extreme
September Weather28°C (83°F)121 mm (4.8 inches)68%extreme
October Weather23°C (73°F)59 mm (2.3 inches)77%very high
November Weather17°C (63°F)12 mm (0.5 inches)84%high
December Weather13°C (56°F)22 mm (0.9 inches)87%moderate

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