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December Weather in Cobb, United States

Last updated: June 24, 2025

In December, the average temperature in Cobb, United States hovers around 8°C (47°F). Expect minimums of -1°C (30°F) and welcoming maximums of 23°C (74°F). During this month, anticipate 99 mm (3.9 in) of precipitation spread over 8 days, contributing to an average humidity of a moist 84%.

December Temperature in Cobb

In December in Cobb, the average temperature is 8°C (47°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop to as low as -1°C (30°F). It's advisable to pack layers to stay comfortable while exploring the diverse weather conditions.

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

The chart illustrates December temperature patterns in Cobb, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cobb, December typically has an average temperature of 8°C (47°F), with highs reaching up to 23°C (74°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec474950566271757570635347
Data source: Temperature data for Cobb 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 Cobb

In Cobb in December, the precipitation amount is 99 mm (3.9 in) spread over 8 days.

December Precipitation Trends in Cobb

The chart displays monthly precipitation patterns in Cobb, 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 Cobb, December typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec14816210448313013445999
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cobb

In Cobb in December, humidity is 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.

December Average Humidity in Cobb

This chart illustrates the average monthly humidity levels in Cobb, 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 Cobb is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cobb

In Cobb 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 Cobb, you can check the information here.

Maximum UV Index Levels in Cobb for December

The chart shows the monthly maximum UV Index (UVI) for Cobb 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 Cobb typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111111109743
Data source: Cobb 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 Cobb Compares to Other Months

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

This table compares monthly weather conditions in Cobb, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)148 mm (5.8 inches)86%moderate
February Weather9°C (49°F)162 mm (6.4 inches)84%moderate
March Weather10°C (51°F)104 mm (4.1 inches)83%high
April Weather14°C (57°F)48 mm (1.9 inches)80%very high
May Weather17°C (63°F)31 mm (1.2 inches)80%extreme
June Weather22°C (71°F)3 mm (0.1 inches)76%extreme
July Weather24°C (76°F)0 mm (0.0 inches)70%extreme
August Weather24°C (75°F)0 mm (0.0 inches)66%very high
September Weather21°C (71°F)3 mm (0.1 inches)68%very high
October Weather17°C (63°F)44 mm (1.7 inches)72%high
November Weather12°C (53°F)59 mm (2.3 inches)84%moderate
December Weather8°C (47°F)99 mm (3.9 inches)84%moderate

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