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December Weather in Marlton, United States

Last updated: June 24, 2025

In December, the average temperature in Marlton, United States hovers around 6°C (42°F). However, temperatures can vary significantly, with minimums plummeting to -10°C (15°F) and maximums reaching up to 20°C (68°F). During this month, expect approximately 89 mm (3.5 in) of precipitation spread over about 10 days, and keep in mind the average humidity sits at a humid 84%.

December Temperature in Marlton

In December in Marlton, the average temperature is 6°C (42°F). The maximum can reach 20°C (68°F), while the minimum can drop as low as -10°C (15°F). It’s advisable to pack layers to comfortably navigate the varying temperatures while traveling.

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

The chart illustrates December temperature patterns in Marlton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marlton, December typically has an average temperature of 6°C (42°F), with highs reaching up to 20°C (68°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec384247576675817872634942
Data source: Temperature data for Marlton 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 Marlton

In Marlton in December, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.

December Precipitation Trends in Marlton

The chart displays monthly precipitation patterns in Marlton, 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 Marlton, December typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6297821011271071671621021177789
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marlton

In Marlton in December humidity is 84%. With an average temperature of 6°C (42°F), this humidity feels like an uncomfortable chill that seeps into your bones, making travel less enjoyable as you find yourself bundled up yet still damp, longing for warmth and comfort.

December Average Humidity in Marlton

This chart illustrates the average monthly humidity levels in Marlton, 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 Marlton is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marlton

In Marlton 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 Marlton, you can check the information here.

Maximum UV Index Levels in Marlton for December

The chart shows the monthly maximum UV Index (UVI) for Marlton 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 Marlton typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Marlton 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 Marlton Compares to Other Months

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

This table compares monthly weather conditions in Marlton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)62 mm (2.4 inches)84%moderate
February Weather5°C (42°F)97 mm (3.8 inches)83%moderate
March Weather8°C (47°F)82 mm (3.2 inches)83%high
April Weather14°C (57°F)101 mm (4.0 inches)81%very high
May Weather19°C (67°F)127 mm (5.0 inches)78%very high
June Weather24°C (76°F)107 mm (4.2 inches)79%very high
July Weather27°C (81°F)167 mm (6.6 inches)74%very high
August Weather25°C (78°F)162 mm (6.4 inches)72%very high
September Weather22°C (73°F)102 mm (4.0 inches)75%very high
October Weather17°C (63°F)117 mm (4.6 inches)81%high
November Weather9°C (49°F)77 mm (3.0 inches)85%moderate
December Weather6°C (42°F)89 mm (3.5 inches)84%moderate

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