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December Weather in Brenham, United States

Last updated: June 24, 2025

In December, the average temperature in Brenham, United States hovers around 13°C (56°F), with a minimum dipping to -2°C (28°F) and a maximum peaking at 29°C (85°F). Expect about 103 mm (4.0 in) of precipitation spread over 8 days, contributing to an average humidity level of 87%.

December Temperature in Brenham

In December in Brenham, the average temperature is 13°C (56°F), with maximums reaching 29°C (85°F) and minimums dropping as low as -2°C (28°F). This variation in temperature makes it essential for travelers to pack accordingly for both warm and chilly conditions.

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

The chart illustrates December temperature patterns in Brenham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brenham, December typically has an average temperature of 13°C (56°F), with highs reaching up to 29°C (85°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec535564697782848681726156
Data source: Temperature data for Brenham 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 Brenham

In Brenham in December, the precipitation amount is 103 mm (4.0 in) over a span of 8 days.

December Precipitation Trends in Brenham

The chart displays monthly precipitation patterns in Brenham, 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 Brenham, December typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec708170111166118961201259572103
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Brenham

In Brenham 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 Brenham

This chart illustrates the average monthly humidity levels in Brenham, 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 Brenham is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Brenham

In Brenham 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 Brenham.

Maximum UV Index Levels in Brenham for December

The chart shows the monthly maximum UV Index (UVI) for Brenham 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 Brenham typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121111865
Data source: Brenham 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 Brenham Compares to Other Months

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

This table compares monthly weather conditions in Brenham, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)70 mm (2.8 inches)79%moderate
February Weather13°C (55°F)81 mm (3.2 inches)80%very high
March Weather18°C (65°F)69 mm (2.7 inches)78%very high
April Weather20°C (69°F)111 mm (4.4 inches)79%extreme
May Weather25°C (77°F)166 mm (6.5 inches)81%extreme
June Weather28°C (83°F)118 mm (4.7 inches)77%extreme
July Weather29°C (85°F)96 mm (3.8 inches)71%extreme
August Weather30°C (86°F)120 mm (4.7 inches)67%extreme
September Weather27°C (81°F)125 mm (4.9 inches)69%extreme
October Weather22°C (72°F)95 mm (3.7 inches)73%very high
November Weather16°C (61°F)72 mm (2.8 inches)82%high
December Weather13°C (56°F)103 mm (4.0 inches)87%moderate

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