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December Weather in Mount Juliet, United States

Last updated: June 24, 2025

In December, the average temperature in Mount Juliet, United States hovers around 7°C (45°F), with fluctuations ranging from a chilly -10°C (15°F) to a pleasant 23°C (74°F). Expect about 150 mm (5.9 in) of precipitation over 11 days, contributing to an average humidity of 88%. Prepare for a mix of cool and moist weather!

December Temperature in Mount Juliet

In December in Mount Juliet, the average temperature is 7°C (45°F). Maximums can reach 23°C (74°F), while minimums can drop as low as -10°C (15°F). Be prepared for a wide range of temperatures when traveling to Mount Juliet during this month.

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

The chart illustrates December temperature patterns in Mount Juliet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Juliet, December typically has an average temperature of 7°C (45°F), with highs reaching up to 23°C (74°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec404552597077807874634845
Data source: Temperature data for Mount Juliet 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 Juliet

In Mount Juliet in December, the total precipitation amount reaches 150 mm (5.9 in) over the course of 11 days.

December Precipitation Trends in Mount Juliet

The chart displays monthly precipitation patterns in Mount Juliet, 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 Juliet, December typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10418316114311714213612412414184150
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mount Juliet

In Mount Juliet in December humidity is 88%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through a heavy, thick atmosphere that clings to your skin.

December Average Humidity in Mount Juliet

This chart illustrates the average monthly humidity levels in Mount Juliet, 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 Juliet is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mount Juliet

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

Maximum UV Index Levels in Mount Juliet for December

The chart shows the monthly maximum UV Index (UVI) for Mount Juliet 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 Juliet typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Mount Juliet 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 Juliet Compares to Other Months

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

This table compares monthly weather conditions in Mount Juliet, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)104 mm (4.1 inches)87%moderate
February Weather7°C (45°F)182 mm (7.2 inches)86%high
March Weather11°C (53°F)161 mm (6.3 inches)86%high
April Weather15°C (59°F)143 mm (5.6 inches)82%very high
May Weather21°C (70°F)117 mm (4.6 inches)82%very high
June Weather25°C (77°F)142 mm (5.6 inches)83%extreme
July Weather27°C (80°F)136 mm (5.4 inches)80%extreme
August Weather26°C (78°F)124 mm (4.9 inches)74%very high
September Weather23°C (74°F)124 mm (4.9 inches)71%very high
October Weather17°C (63°F)141 mm (5.6 inches)78%high
November Weather9°C (49°F)84 mm (3.3 inches)88%moderate
December Weather7°C (45°F)150 mm (5.9 inches)88%moderate

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