December Weather in Germantown Hills, United States

Last updated: June 24, 2025

In December, the average temperature in Germantown Hills, United States hovers around 1°C (34°F). This month can see extremes, with minimums dipping to -21°C (-6°F) and maximums reaching up to 20°C (68°F). Expect about 55 mm (2.2 in) of precipitation spread across 6 days, contributing to an average humidity of 84%. Stay prepared for a mix of chilly days and wet weather!

December Temperature in Germantown Hills

In December in Germantown Hills, the average temperature is 1°C (34°F). The maximum can reach 20°C (68°F), while the minimum can be as low as -21°C (-6°F). It's advisable to pack layers when traveling to this destination during this time of year, as the temperature can fluctuate significantly.

December Weather in Germantown Hills: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Germantown Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Germantown Hills, December typically has an average temperature of 1°C (34°F), with highs reaching up to 20°C (68°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec262941516474777470564034
Data source: Temperature data for Germantown Hills 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 Germantown Hills

In Germantown Hills in December, the total precipitation amount is 55 mm (2.2 in) spread over 6 days.

December Precipitation Trends in Germantown Hills

The chart displays monthly precipitation patterns in Germantown Hills, 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 Germantown Hills, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec616710811616714810774711315755
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Germantown Hills

In Germantown Hills in December humidity is 84%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring extra layers to keep warm while navigating the damp air.

December Average Humidity in Germantown Hills

This chart illustrates the average monthly humidity levels in Germantown Hills, 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 Germantown Hills is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Germantown Hills

In Germantown Hills 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 Germantown Hills, you can visit Hourly UV Index in Germantown Hills.

Maximum UV Index Levels in Germantown Hills for December

The chart shows the monthly maximum UV Index (UVI) for Germantown Hills 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 Germantown Hills typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35789111098642
Data source: Germantown Hills 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 Germantown Hills Compares to Other Months

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

This table compares monthly weather conditions in Germantown Hills, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)61 mm (2.4 inches)82%moderate
February Weather-2°C (29°F)67 mm (2.7 inches)83%moderate
March Weather5°C (42°F)108 mm (4.3 inches)84%high
April Weather10°C (51°F)116 mm (4.6 inches)85%very high
May Weather18°C (64°F)167 mm (6.6 inches)79%very high
June Weather23°C (74°F)148 mm (5.8 inches)82%extreme
July Weather25°C (77°F)107 mm (4.2 inches)80%very high
August Weather23°C (74°F)74 mm (2.9 inches)81%very high
September Weather21°C (70°F)71 mm (2.8 inches)80%very high
October Weather13°C (56°F)131 mm (5.2 inches)82%high
November Weather4°C (40°F)57 mm (2.3 inches)88%moderate
December Weather1°C (34°F)55 mm (2.2 inches)84%low

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