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December Weather in Antioch, United States

Last updated: June 24, 2025

In Antioch, United States, the average temperature in December hovers around 10°C (50°F). Expect a minimum of -1°C (30°F) and a pleasant maximum of 23°C (74°F). Precipitation levels stand at 83 mm (3.3 in) over 8 days, contributing to a relative humidity of 80%. Embrace the refreshing environment this month brings!

December Temperature in Antioch

In December in Antioch, the average temperature is 10°C (50°F). Maximums can reach 23°C (74°F), and minimums can be as low as -1°C (30°F). Be prepared for a range of weather conditions if you're planning to travel during this month.

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

The chart illustrates December temperature patterns in Antioch, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Antioch, December typically has an average temperature of 10°C (50°F), with highs reaching up to 23°C (74°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec505356616570717170645650
Data source: Temperature data for Antioch 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 Antioch

In Antioch in December, the precipitation amount reaches 83 mm (3.3 in) over the course of 8 days.

December Precipitation Trends in Antioch

The chart displays monthly precipitation patterns in Antioch, 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 Antioch, December typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec100877030151001263883
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Antioch

In Antioch in December, humidity is 80%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill enveloping you, making traveling somewhat uncomfortable as it seeps into your clothes and clings to your skin, leaving you longing for a cozy indoor refuge.

December Average Humidity in Antioch

This chart illustrates the average monthly humidity levels in Antioch, 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 Antioch is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Antioch

In Antioch 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 Antioch, you can check the information here.

Maximum UV Index Levels in Antioch for December

The chart shows the monthly maximum UV Index (UVI) for Antioch 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 Antioch typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109643
Data source: Antioch 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 Antioch Compares to Other Months

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

This table compares monthly weather conditions in Antioch, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)100 mm (4.0 inches)82%moderate
February Weather11°C (53°F)87 mm (3.4 inches)84%moderate
March Weather13°C (56°F)70 mm (2.7 inches)82%very high
April Weather16°C (61°F)30 mm (1.2 inches)78%very high
May Weather18°C (65°F)15 mm (0.6 inches)71%very high
June Weather21°C (70°F)1 mm (0.1 inches)64%extreme
July Weather22°C (71°F)0 mm (0.0 inches)58%extreme
August Weather22°C (71°F)0 mm (0.0 inches)54%very high
September Weather21°C (70°F)1 mm (0.0 inches)55%very high
October Weather18°C (64°F)26 mm (1.0 inches)62%high
November Weather13°C (56°F)38 mm (1.5 inches)78%moderate
December Weather10°C (50°F)83 mm (3.3 inches)80%moderate

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