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December Weather in Cumming, United States

Last updated: June 24, 2025

In December, the average temperature in Cumming, United States hovers around 8°C (47°F). Expect a chill, as the minimum can dip to -7°C (21°F), while warmer days could see a maximum of 23°C (73°F). During this month, precipitation amounts to 151 mm (6.0 in) spread across approximately 12 days, accompanied by an average humidity level of 88%.

December Temperature in Cumming

In December in Cumming, the average temperature is 8°C (47°F), with maximums reaching up to 23°C (73°F) and minimums dipping as low as -7°C (21°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates December temperature patterns in Cumming, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cumming, December typically has an average temperature of 8°C (47°F), with highs reaching up to 23°C (73°F) and lows dropping to around -7°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec444954617075787773645147
Data source: Temperature data for Cumming 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 Cumming

In Cumming in December, the total precipitation amount is 151 mm (6.0 in) accumulated over the course of 12 days.

December Precipitation Trends in Cumming

The chart displays monthly precipitation patterns in Cumming, 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 Cumming, December typically receives around 151 mm (6.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec12418215913913113512016411615690151
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cumming

In Cumming in December, humidity is 88%. With an average temperature of 8°C (47°F), this humidity feels like a thick, damp blanket wrapping around you, making even short walks feel heavy and uninviting for travel.

December Average Humidity in Cumming

This chart illustrates the average monthly humidity levels in Cumming, 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 Cumming is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cumming

In Cumming 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 Cumming for better planning.

Maximum UV Index Levels in Cumming for December

The chart shows the monthly maximum UV Index (UVI) for Cumming 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 Cumming typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Cumming 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 Cumming Compares to Other Months

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

This table compares monthly weather conditions in Cumming, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)124 mm (4.9 inches)86%moderate
February Weather10°C (49°F)182 mm (7.2 inches)86%high
March Weather12°C (55°F)159 mm (6.2 inches)86%very high
April Weather16°C (61°F)139 mm (5.5 inches)82%very high
May Weather21°C (70°F)131 mm (5.2 inches)85%extreme
June Weather24°C (75°F)135 mm (5.3 inches)85%extreme
July Weather26°C (78°F)120 mm (4.7 inches)83%extreme
August Weather25°C (77°F)164 mm (6.5 inches)76%very high
September Weather23°C (73°F)116 mm (4.6 inches)76%very high
October Weather18°C (65°F)156 mm (6.1 inches)80%very high
November Weather11°C (51°F)90 mm (3.5 inches)88%high
December Weather8°C (47°F)151 mm (6.0 inches)88%moderate

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