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December Weather in Mount Laurel, United States

Last updated: June 24, 2025

In Mount Laurel, United States, the average temperature in December hovers around 4°C (40°F). Expect minimums dipping to -11°C (12°F) and maximums reaching up to 19°C (67°F). This month brings about 102 mm (4.0 in) of precipitation, spread over 10 rainy days. Coupled with an average humidity of 84%, it's a month that underscores the region's cool, wet climate.

December Temperature in Mount Laurel

In December in Mount Laurel, the average temperature is 4°C (40°F). The maximum can reach 19°C (67°F) and the minimum can be as low as -11°C (12°F). Be prepared for a wide temperature range if you're planning to travel during this time.

December Weather in Mount Laurel: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mount Laurel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Laurel, December typically has an average temperature of 4°C (40°F), with highs reaching up to 19°C (67°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec363944546473797771614739
Data source: Temperature data for Mount Laurel 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 Mount Laurel

In Mount Laurel in December, the total precipitation amount is 102 mm (4.0 in) falling over the course of 10 days.

December Precipitation Trends in Mount Laurel

The chart displays monthly precipitation patterns in Mount Laurel, 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 Mount Laurel, December typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec63108108103127991291298611283102
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mount Laurel

In Mount Laurel in December, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

December Average Humidity in Mount Laurel

This chart illustrates the average monthly humidity levels in Mount Laurel, 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 Mount Laurel 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 Mount Laurel

In Mount Laurel 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 Mount Laurel, you can check the information here.

Maximum UV Index Levels in Mount Laurel for December

The chart shows the monthly maximum UV Index (UVI) for Mount Laurel 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 Mount Laurel typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Mount Laurel 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 Mount Laurel Compares to Other Months

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

This table compares monthly weather conditions in Mount Laurel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)63 mm (2.5 inches)84%moderate
February Weather4°C (39°F)108 mm (4.2 inches)83%moderate
March Weather7°C (44°F)108 mm (4.3 inches)83%high
April Weather12°C (55°F)103 mm (4.0 inches)81%very high
May Weather18°C (64°F)127 mm (5.0 inches)78%very high
June Weather23°C (74°F)99 mm (3.9 inches)79%very high
July Weather26°C (79°F)129 mm (5.1 inches)74%very high
August Weather25°C (77°F)129 mm (5.1 inches)72%very high
September Weather22°C (71°F)86 mm (3.4 inches)75%very high
October Weather16°C (61°F)112 mm (4.4 inches)81%high
November Weather8°C (47°F)83 mm (3.3 inches)85%moderate
December Weather4°C (40°F)102 mm (4.0 inches)84%moderate

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