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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 9°C (49°F). Expect a range from a chilly -6°C (21°F) to a pleasant 24°C (75°F). Be prepared for 144 mm (5.7 in) of precipitation over 12 days, and a high average humidity of 88% will make it feel quite damp!

December Temperature in Carrollton

In December in Carrollton, the average temperature is 9°C (49°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop as low as -6°C (21°F). Be prepared for a wide range of temperatures when traveling, so pack accordingly!

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 9°C (49°F), with highs reaching up to 24°C (75°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec465156627176797875665248
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 144 mm (5.7 in) over the course of 12 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 144 mm (5.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1081511221279412711313510512385144
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 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
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 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 Carrollton for better planning.

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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
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 Weather8°C (46°F)108 mm (4.3 inches)85%moderate
February Weather11°C (52°F)151 mm (5.9 inches)84%high
March Weather14°C (57°F)122 mm (4.8 inches)82%very high
April Weather17°C (62°F)127 mm (5.0 inches)82%very high
May Weather22°C (71°F)94 mm (3.7 inches)81%extreme
June Weather24°C (76°F)127 mm (5.0 inches)77%extreme
July Weather26°C (79°F)113 mm (4.4 inches)77%extreme
August Weather26°C (78°F)135 mm (5.3 inches)72%very high
September Weather24°C (75°F)105 mm (4.1 inches)73%very high
October Weather19°C (66°F)123 mm (4.8 inches)73%very high
November Weather11°C (52°F)85 mm (3.4 inches)85%high
December Weather9°C (49°F)144 mm (5.7 inches)88%moderate

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