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December Weather in Marthasville, United States

Last updated: June 24, 2025

In December, the average temperature in Marthasville, United States hovers around 4°C (39°F), with a minimum drop to -17°C (2°F) and occasional peaks reaching up to 22°C (72°F). Expect around 50 mm (2.0 in) of precipitation spread over 6 days, and prepare for a rather humid atmosphere, with average humidity sitting at 86%.

December Temperature in Marthasville

In December in Marthasville, the average temperature is 4°C (39°F). Maximum temperatures can reach up to 22°C (72°F), while minimum temperatures can drop as low as -17°C (2°F). Be prepared for a wide range of temperatures to ensure a comfortable and enjoyable travel experience.

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

The chart illustrates December temperature patterns in Marthasville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marthasville, December typically has an average temperature of 4°C (39°F), with highs reaching up to 22°C (72°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec323546556676797672584439
Data source: Temperature data for Marthasville 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 Marthasville

In Marthasville in December, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.

December Precipitation Trends in Marthasville

The chart displays monthly precipitation patterns in Marthasville, 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 Marthasville, December typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec717712712315589101145571066750
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marthasville

In Marthasville in December humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

December Average Humidity in Marthasville

This chart illustrates the average monthly humidity levels in Marthasville, 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 Marthasville is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marthasville

In Marthasville 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 Marthasville, you can check the information here.

Maximum UV Index Levels in Marthasville for December

The chart shows the monthly maximum UV Index (UVI) for Marthasville 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 Marthasville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109753
Data source: Marthasville 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 Marthasville Compares to Other Months

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

This table compares monthly weather conditions in Marthasville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)71 mm (2.8 inches)82%moderate
February Weather2°C (35°F)77 mm (3.0 inches)80%moderate
March Weather8°C (47°F)127 mm (5.0 inches)80%high
April Weather13°C (55°F)122 mm (4.8 inches)80%very high
May Weather19°C (67°F)155 mm (6.1 inches)82%very high
June Weather24°C (76°F)89 mm (3.5 inches)83%extreme
July Weather26°C (80°F)101 mm (4.0 inches)81%extreme
August Weather24°C (76°F)145 mm (5.7 inches)80%very high
September Weather22°C (72°F)57 mm (2.3 inches)76%very high
October Weather15°C (59°F)106 mm (4.2 inches)76%high
November Weather7°C (44°F)67 mm (2.6 inches)85%moderate
December Weather4°C (39°F)50 mm (2.0 inches)86%moderate

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