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December Weather in Millersburg, United States

Last updated: June 24, 2025

In December, the average temperature in Millersburg, United States hovers around 2°C (36°F), with a notable minimum of -16°C (4°F) and a maximum reaching up to 18°C (65°F). Expect about 94 mm (3.7 in) of precipitation spread over 11 days, contributing to a rather humid climate with an average humidity of 86%.

December Temperature in Millersburg

In December in Millersburg, the average temperature is 2°C (36°F), with maximums reaching 18°C (65°F) and minimums dipping as low as -16°C (4°F). Travelers should be prepared for a wide range of temperatures, making versatile clothing essential for enjoying the varied weather.

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

The chart illustrates December temperature patterns in Millersburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millersburg, December typically has an average temperature of 2°C (36°F), with highs reaching up to 18°C (65°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec303441516371757368574236
Data source: Temperature data for Millersburg 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 Millersburg

In Millersburg in December, the precipitation amount is 94 mm (3.7 in) over the course of 11 days.

December Precipitation Trends in Millersburg

The chart displays monthly precipitation patterns in Millersburg, 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 Millersburg, December typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8410210413211912111582971049394
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Millersburg

In Millersburg in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in Millersburg

This chart illustrates the average monthly humidity levels in Millersburg, 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 Millersburg is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Millersburg

In Millersburg 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 Millersburg, you can visit Hourly UV Index in Millersburg.

Maximum UV Index Levels in Millersburg for December

The chart shows the monthly maximum UV Index (UVI) for Millersburg 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 Millersburg typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Millersburg 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 Millersburg Compares to Other Months

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

This table compares monthly weather conditions in Millersburg, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)84 mm (3.3 inches)88%moderate
February Weather1°C (34°F)102 mm (4.0 inches)88%moderate
March Weather5°C (42°F)104 mm (4.1 inches)87%high
April Weather11°C (51°F)132 mm (5.2 inches)87%very high
May Weather17°C (63°F)119 mm (4.7 inches)81%very high
June Weather22°C (71°F)121 mm (4.8 inches)83%very high
July Weather24°C (76°F)115 mm (4.5 inches)82%very high
August Weather23°C (73°F)82 mm (3.2 inches)76%very high
September Weather20°C (68°F)97 mm (3.8 inches)77%very high
October Weather14°C (57°F)104 mm (4.1 inches)82%high
November Weather5°C (42°F)93 mm (3.7 inches)89%moderate
December Weather2°C (36°F)94 mm (3.7 inches)86%low

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