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December Weather in Carrollton, United States

Last updated: June 24, 2025

In December, the average temperature in Carrollton, United States is a crisp 8°C (46°F), making it a cool time of year. Expect minimums to dip as low as -7°C (20°F) and enjoy the occasional warm day with highs reaching 24°C (75°F). With 86 mm (3.4 in) of precipitation spread over 9 days, it's wise to prepare for some rainy weather. Don’t forget, the average humidity sits at a high 84%, adding to the overall chill in the air.

December Temperature in Carrollton

In December in Carrollton, the average temperature is 8°C (46°F), with maximums reaching 24°C (75°F) and minimums dipping as low as -7°C (20°F). Visitors should be prepared for a wide range of temperatures and dress in layers to make the most of their trip.

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 8°C (46°F), with highs reaching up to 24°C (75°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec424650606976817974655246
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 86 mm (3.4 in), falling over the course 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 86 mm (3.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8510585103118115132157120877686
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 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%82%81%80%82%81%81%78%80%84%84%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3679101011108853
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 Weather5°C (42°F)85 mm (3.3 inches)84%moderate
February Weather8°C (47°F)105 mm (4.1 inches)83%high
March Weather10°C (51°F)85 mm (3.3 inches)82%high
April Weather16°C (60°F)103 mm (4.1 inches)81%very high
May Weather20°C (69°F)118 mm (4.7 inches)80%very high
June Weather25°C (76°F)114 mm (4.5 inches)82%very high
July Weather27°C (81°F)132 mm (5.2 inches)81%extreme
August Weather26°C (79°F)157 mm (6.2 inches)81%very high
September Weather24°C (75°F)120 mm (4.7 inches)78%very high
October Weather19°C (66°F)87 mm (3.4 inches)80%very high
November Weather11°C (52°F)76 mm (3.0 inches)84%moderate
December Weather8°C (46°F)86 mm (3.4 inches)84%moderate

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