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December Weather in Carrollton, United States

Last updated: June 24, 2025

In December, the average temperature in Carrollton, United States hovers around 4°C (40°F), making it a chilly time of year. Brace yourself for temperatures that can dip as low as -16°C (4°F) and reach a pleasant 21°C (70°F) at times. Expect 107 mm (4.2 in) of precipitation spread over 9 days, contributing to an average humidity of 87%. Stay prepared for the fluctuating weather!

December Temperature in Carrollton

In December in Carrollton, the average temperature is 4°C (40°F). The maximum can reach 21°C (70°F) and the minimum can be as low as -16°C (4°F). Be sure to prepare for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Carrollton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carrollton, December typically has an average temperature of 4°C (40°F), with highs reaching up to 21°C (70°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec343846556674777571594439
Data source: Temperature data for Carrollton 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 Carrollton

In Carrollton in December, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.

December Precipitation Trends in Carrollton

The chart displays monthly precipitation patterns in Carrollton, 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 Carrollton, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec851201391341251541091009910296107
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Carrollton

In Carrollton in December humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

December Average Humidity in Carrollton

This chart illustrates the average monthly humidity levels in Carrollton, 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 Carrollton is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Carrollton

In Carrollton in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Carrollton, you can check the information here.

Maximum UV Index Levels in Carrollton for December

The chart shows the monthly maximum UV Index (UVI) for Carrollton 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 Carrollton typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Carrollton 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 Carrollton Compares to Other Months

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

This table compares monthly weather conditions in Carrollton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)85 mm (3.4 inches)87%moderate
February Weather3°C (38°F)120 mm (4.7 inches)85%moderate
March Weather8°C (46°F)139 mm (5.5 inches)86%high
April Weather13°C (55°F)134 mm (5.3 inches)84%very high
May Weather19°C (67°F)125 mm (4.9 inches)79%very high
June Weather23°C (74°F)154 mm (6.1 inches)82%very high
July Weather25°C (78°F)109 mm (4.3 inches)79%very high
August Weather24°C (76°F)100 mm (3.9 inches)70%very high
September Weather22°C (71°F)98 mm (3.9 inches)69%very high
October Weather15°C (60°F)102 mm (4.0 inches)76%high
November Weather7°C (44°F)96 mm (3.8 inches)88%moderate
December Weather4°C (40°F)107 mm (4.2 inches)87%moderate

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