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December Weather in Millville, United States

Last updated: June 24, 2025

In Millville, United States, the average temperature in December hovers around 8°C (47°F), with a minimum dipping to -1°C (31°F) and a maximum reaching 23°C (73°F). Expect a fair share of rain, with 151 mm (5.9 in) of precipitation spread over 11 days. With an average humidity of 86%, you might want to prepare for a damp chill in the air!

December Temperature in Millville

In December in Millville, the average temperature is 8°C (47°F), with maximums reaching up to 23°C (73°F) and minimums dropping as low as -1°C (31°F). This variability in temperature makes it essential to pack both warm and light clothing for 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 8°C (47°F), with highs reaching up to 23°C (73°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec474952596878868375645446
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 total precipitation amount is 151 mm (5.9 in) over the course of 11 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 151 mm (5.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2141941879156901964122151
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 86%. With an average temperature of 8°C (47°F), this humidity feels like a chilling damp that penetrates your clothes, making outdoor adventures less enjoyable and encouraging you to seek warmth indoors rather than explore the sights.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
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 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Millville, you can visit Hourly UV Index in Millville.

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 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101110109642
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 Weather8°C (47°F)214 mm (8.4 inches)86%moderate
February Weather10°C (50°F)194 mm (7.6 inches)87%moderate
March Weather11°C (53°F)187 mm (7.4 inches)86%high
April Weather15°C (60°F)91 mm (3.6 inches)83%very high
May Weather20°C (68°F)56 mm (2.2 inches)72%very high
June Weather26°C (79°F)9 mm (0.3 inches)67%extreme
July Weather30°C (86°F)0 mm (0.0 inches)56%very high
August Weather28°C (83°F)1 mm (0.0 inches)42%very high
September Weather24°C (75°F)9 mm (0.4 inches)46%very high
October Weather18°C (64°F)64 mm (2.5 inches)67%high
November Weather12°C (54°F)122 mm (4.8 inches)86%moderate
December Weather8°C (47°F)151 mm (5.9 inches)86%low

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