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December Weather in Millville, United States

Last updated: June 24, 2025

In December, the average temperature in Millville, United States hovers around 5°C (41°F), with a minimum dipping as low as -11°C (12°F) and a maximum reaching 20°C (68°F). Expect 100 mm (3.9 in) of precipitation over approximately 9 days, contributing to an average humidity of 84%. Stay prepared for the chill!

December Temperature in Millville

In December in Millville, the average temperature is 5°C (41°F). Maximum temperatures can reach up to 20°C (68°F), while minimums can drop to as low as -11°C (12°F). Pack accordingly and be prepared for a wide range of weather conditions during your travels!

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

The chart illustrates December temperature patterns in Millville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millville, December typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (68°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec374045556474797771624841
Data source: Temperature data for Millville 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 Millville

In Millville in December, the precipitation amount is 100 mm (3.9 in) spread over 9 days.

December Precipitation Trends in Millville

The chart displays monthly precipitation patterns in Millville, 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 Millville, December typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec619810610012511613916210312274100
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Millville

In Millville in December humidity is 84%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through the cold, heavy air that clings to your skin.

December Average Humidity in Millville

This chart illustrates the average monthly humidity levels in Millville, 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 Millville 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 Millville

In Millville 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 Millville, you can check the information here.

Maximum UV Index Levels in Millville for December

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

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

This table compares monthly weather conditions in Millville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)61 mm (2.4 inches)84%moderate
February Weather5°C (41°F)98 mm (3.9 inches)83%moderate
March Weather7°C (46°F)106 mm (4.2 inches)83%high
April Weather13°C (56°F)100 mm (3.9 inches)81%very high
May Weather18°C (65°F)125 mm (4.9 inches)78%very high
June Weather23°C (74°F)116 mm (4.6 inches)79%very high
July Weather26°C (80°F)139 mm (5.5 inches)74%very high
August Weather25°C (77°F)162 mm (6.4 inches)72%very high
September Weather22°C (72°F)102 mm (4.0 inches)75%very high
October Weather17°C (62°F)122 mm (4.8 inches)81%high
November Weather9°C (48°F)74 mm (2.9 inches)85%moderate
December Weather5°C (41°F)100 mm (3.9 inches)84%moderate

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