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December Weather in Celina, United States

Last updated: June 24, 2025

In December, the average temperature in Celina, United States hovers around 10°C (51°F). Expect a minimum chill of -6°C (22°F) and a sunny peak of 27°C (81°F). Rain might grace your visit, with about 66 mm (2.6 in) of precipitation spread over 7 days, all while the air remains quite humid at an average of 87%.

December Temperature in Celina

In December in Celina, the average temperature is 10°C (51°F). The maximum can reach 27°C (81°F), while the minimum can drop to as low as -6°C (22°F). Travelers should be prepared for a range of weather conditions, from chilly nights to warm days.

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

The chart illustrates December temperature patterns in Celina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Celina, December typically has an average temperature of 10°C (51°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec464859647381848479675550
Data source: Temperature data for Celina 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 Celina

In Celina in December, the precipitation amount is 66 mm (2.6 in) over a period of 7 days.

December Precipitation Trends in Celina

The chart displays monthly precipitation patterns in Celina, 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 Celina, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec60971301231729754971091515666
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Celina

In Celina in December humidity is 87%. With an average temperature of 10°C (51°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities uncomfortable and sticky, and often requiring frequent breaks to stay hydrated and cool.

December Average Humidity in Celina

This chart illustrates the average monthly humidity levels in Celina, 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 Celina is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Celina

In Celina 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 Celina for better planning.

Maximum UV Index Levels in Celina for December

The chart shows the monthly maximum UV Index (UVI) for Celina 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 Celina typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Celina 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 Celina Compares to Other Months

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

This table compares monthly weather conditions in Celina, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)60 mm (2.4 inches)80%moderate
February Weather9°C (48°F)97 mm (3.8 inches)79%high
March Weather15°C (59°F)130 mm (5.1 inches)78%very high
April Weather18°C (64°F)123 mm (4.8 inches)78%very high
May Weather23°C (74°F)172 mm (6.8 inches)81%extreme
June Weather27°C (81°F)97 mm (3.8 inches)78%extreme
July Weather29°C (85°F)54 mm (2.1 inches)73%extreme
August Weather29°C (84°F)97 mm (3.8 inches)66%extreme
September Weather26°C (79°F)109 mm (4.3 inches)65%very high
October Weather19°C (67°F)151 mm (6.0 inches)72%very high
November Weather13°C (56°F)56 mm (2.2 inches)82%high
December Weather10°C (51°F)66 mm (2.6 inches)87%moderate

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