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December Weather in Castleberry, United States

Last updated: June 24, 2025

In December, the average temperature in Castleberry, United States hovers around 12°C (54°F). Expect a chilly minimum of -4°C (25°F) and a warm maximum of 27°C (82°F). This month also brings 143 mm (5.6 in) of precipitation over approximately 12 days, contributing to a notably high average humidity of 86%. Stay prepared for the diverse weather conditions!

December Temperature in Castleberry

In December in Castleberry, the average temperature is 12°C (54°F). Maximum temperatures can reach 27°C (82°F) and minimums can drop as low as -4°C (25°F). Prepare for a variety of weather conditions to make the most of your travel experience.

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

The chart illustrates December temperature patterns in Castleberry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castleberry, December typically has an average temperature of 12°C (54°F), with highs reaching up to 27°C (82°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec515762667579818178715854
Data source: Temperature data for Castleberry 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 Castleberry

In Castleberry in December, the total precipitation amount is 143 mm (5.6 in) over the course of 12 days.

December Precipitation Trends in Castleberry

The chart displays monthly precipitation patterns in Castleberry, 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 Castleberry, December typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec99119991141231741451431279562143
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castleberry

In Castleberry in December, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

December Average Humidity in Castleberry

This chart illustrates the average monthly humidity levels in Castleberry, 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 Castleberry is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Castleberry

In Castleberry 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 Castleberry for better planning.

Maximum UV Index Levels in Castleberry for December

The chart shows the monthly maximum UV Index (UVI) for Castleberry 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 Castleberry typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Castleberry 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 Castleberry Compares to Other Months

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

This table compares monthly weather conditions in Castleberry, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)99 mm (3.9 inches)83%moderate
February Weather14°C (58°F)119 mm (4.7 inches)82%very high
March Weather17°C (63°F)98 mm (3.9 inches)79%very high
April Weather19°C (67°F)114 mm (4.5 inches)77%extreme
May Weather24°C (75°F)123 mm (4.8 inches)74%extreme
June Weather26°C (80°F)174 mm (6.9 inches)70%extreme
July Weather27°C (81°F)145 mm (5.7 inches)78%extreme
August Weather27°C (81°F)143 mm (5.6 inches)78%extreme
September Weather26°C (78°F)127 mm (5.0 inches)79%very high
October Weather22°C (71°F)95 mm (3.7 inches)74%very high
November Weather14°C (58°F)62 mm (2.5 inches)83%high
December Weather12°C (54°F)143 mm (5.6 inches)86%moderate

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