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December Weather in Frankfort, United States

Last updated: June 24, 2025

In December, the average temperature in Frankfort, United States hovers around 3°C (38°F), with extremes ranging from a chilly -16°C (3°F) to a mild 19°C (66°F). Expect about 105 mm (4.1 in) of precipitation spread over 11 days, contributing to an average humidity of 87%.

December Temperature in Frankfort

In December in Frankfort, the average temperature is 3°C (38°F). The maximum can reach 19°C (66°F), while the minimum can drop as low as -16°C (3°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates December temperature patterns in Frankfort, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Frankfort, December typically has an average temperature of 3°C (38°F), with highs reaching up to 19°C (66°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec323644536472767469584337
Data source: Temperature data for Frankfort 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 Frankfort

In Frankfort in December, the precipitation amount is 105 mm (4.1 in) over the course of 11 days.

December Precipitation Trends in Frankfort

The chart displays monthly precipitation patterns in Frankfort, 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 Frankfort, December typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7810512612312713812198929894105
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Frankfort

In Frankfort in December humidity is 87%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making travel quite uncomfortable as the cold dampness seeps into your clothes and lingers in the air, often leaving you shivering and longing for warmer, drier conditions.

December Average Humidity in Frankfort

This chart illustrates the average monthly humidity levels in Frankfort, 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 Frankfort is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Frankfort

In Frankfort 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 Frankfort, you can check the information here.

Maximum UV Index Levels in Frankfort for December

The chart shows the monthly maximum UV Index (UVI) for Frankfort 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 Frankfort typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Frankfort 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 Frankfort Compares to Other Months

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

This table compares monthly weather conditions in Frankfort, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)78 mm (3.1 inches)88%moderate
February Weather2°C (36°F)105 mm (4.1 inches)88%moderate
March Weather6°C (44°F)126 mm (5.0 inches)87%high
April Weather12°C (53°F)123 mm (4.9 inches)85%very high
May Weather18°C (65°F)127 mm (5.0 inches)81%very high
June Weather22°C (72°F)138 mm (5.4 inches)82%very high
July Weather25°C (77°F)121 mm (4.8 inches)81%very high
August Weather23°C (74°F)98 mm (3.8 inches)73%very high
September Weather21°C (70°F)92 mm (3.6 inches)73%very high
October Weather15°C (59°F)98 mm (3.9 inches)78%high
November Weather6°C (43°F)94 mm (3.7 inches)89%moderate
December Weather3°C (38°F)105 mm (4.1 inches)87%moderate

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