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December Weather in Chillicothe, United States

Last updated: June 24, 2025

In December, the average temperature in Chillicothe, United States hovers around 2°C (36°F). Visitors should prepare for a potential temperature range, with a minimum dipping to -20°C (-4°F) and a maximum peaking at 24°C (75°F). During this month, the area experiences about 34 mm (1.4 in) of precipitation spread over 5 days, contributing to an average humidity level of 86%. Be ready for a mix of chilly and mild conditions!

December Temperature in Chillicothe

In December in Chillicothe, the average temperature is 2°C (36°F). Maximum temperatures can reach 24°C (75°F), while minima can drop to as low as -20°C (-4°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates December temperature patterns in Chillicothe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chillicothe, December typically has an average temperature of 2°C (36°F), with highs reaching up to 24°C (75°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec293145536676797671564336
Data source: Temperature data for Chillicothe 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 Chillicothe

In Chillicothe in December, the precipitation amount is 34 mm (1.4 in) spread over 5 days.

December Precipitation Trends in Chillicothe

The chart displays monthly precipitation patterns in Chillicothe, 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 Chillicothe, December typically receives around 34 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec584710483197144110103851285035
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Chillicothe

In Chillicothe 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 Chillicothe

This chart illustrates the average monthly humidity levels in Chillicothe, 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 Chillicothe is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chillicothe

In Chillicothe 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 Chillicothe, you can check the information here.

Maximum UV Index Levels in Chillicothe for December

The chart shows the monthly maximum UV Index (UVI) for Chillicothe 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 Chillicothe typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Chillicothe 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 Chillicothe Compares to Other Months

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

This table compares monthly weather conditions in Chillicothe, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)58 mm (2.3 inches)80%moderate
February Weather0°C (31°F)47 mm (1.8 inches)78%moderate
March Weather7°C (45°F)104 mm (4.1 inches)75%high
April Weather12°C (53°F)83 mm (3.3 inches)77%very high
May Weather19°C (66°F)197 mm (7.7 inches)82%very high
June Weather25°C (77°F)144 mm (5.7 inches)83%extreme
July Weather26°C (80°F)110 mm (4.3 inches)81%extreme
August Weather24°C (76°F)103 mm (4.1 inches)78%very high
September Weather22°C (71°F)85 mm (3.3 inches)72%very high
October Weather13°C (56°F)128 mm (5.0 inches)72%high
November Weather6°C (43°F)50 mm (2.0 inches)84%moderate
December Weather2°C (36°F)34 mm (1.4 inches)86%moderate

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