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December Weather in Lavaca, United States

Last updated: June 24, 2025

In December, the average temperature in Lavaca, United States hovers around 8°C (47°F). Here, you can expect a significant range, with minimums dipping to -7°C (20°F) and maximums reaching up to 26°C (79°F). Rainfall is also notable, with an average precipitation of 88 mm (3.5 in) spread over 8 days, contributing to a high average humidity of 87%. Prepare accordingly for the diverse weather conditions!

December Temperature in Lavaca

In December in Lavaca, the average temperature is 8°C (47°F), with maximums reaching 26°C (79°F) and minimums dropping as low as -7°C (20°F). Be prepared for a wide range of temperatures when traveling to Lavaca during this month.

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

The chart illustrates December temperature patterns in Lavaca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lavaca, December typically has an average temperature of 8°C (47°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec414555617179828077645146
Data source: Temperature data for Lavaca 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 Lavaca

In Lavaca in December, the precipitation amount is 88 mm (3.5 in) over the course of 8 days.

December Precipitation Trends in Lavaca

The chart displays monthly precipitation patterns in Lavaca, 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 Lavaca, December typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec811161261452019885121621227388
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lavaca

In Lavaca in December, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

December Average Humidity in Lavaca

This chart illustrates the average monthly humidity levels in Lavaca, 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 Lavaca is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%77%78%82%81%75%61%59%69%82%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lavaca

In Lavaca in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Lavaca for better planning.

Maximum UV Index Levels in Lavaca for December

The chart shows the monthly maximum UV Index (UVI) for Lavaca 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 Lavaca typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710111111109754
Data source: Lavaca 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 Lavaca Compares to Other Months

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

This table compares monthly weather conditions in Lavaca, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)81 mm (3.2 inches)82%moderate
February Weather7°C (45°F)116 mm (4.6 inches)79%high
March Weather13°C (55°F)126 mm (4.9 inches)77%high
April Weather16°C (61°F)145 mm (5.7 inches)78%very high
May Weather21°C (71°F)201 mm (7.9 inches)82%extreme
June Weather26°C (79°F)98 mm (3.9 inches)81%extreme
July Weather28°C (83°F)85 mm (3.4 inches)75%extreme
August Weather27°C (81°F)121 mm (4.8 inches)61%very high
September Weather25°C (77°F)62 mm (2.4 inches)59%very high
October Weather18°C (64°F)122 mm (4.8 inches)69%high
November Weather11°C (51°F)73 mm (2.9 inches)82%moderate
December Weather8°C (47°F)88 mm (3.5 inches)87%moderate

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