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December Weather in Mars Hill, United States

Last updated: June 24, 2025

In December, the average temperature in Mars Hill, United States hovers around -7°C (20°F), with extremes that can dip to a chilling -25°C (-13°F) or rise to a moderate 14°C (58°F). Expect about 110 mm (4.3 in) of precipitation over 10 days, contributing to an average humidity level of 90%—perfect for that cozy atmosphere!

December Temperature in Mars Hill

In December in Mars Hill, the average temperature is -7°C (20°F). Maximum temperatures can reach 14°C (58°F), while the minimum can drop as low as -25°C (-13°F). Be prepared for a wide range of temperatures, and pack accordingly to enjoy your trip!

December Weather in Mars Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mars Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mars Hill, December typically has an average temperature of -7°C (20°F), with highs reaching up to 14°C (58°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec151725385161666557453220
Data source: Temperature data for Mars Hill 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 Mars Hill

In Mars Hill in December, the precipitation amount is 110 mm (4.3 in) over a period of 10 days.

December Precipitation Trends in Mars Hill

The chart displays monthly precipitation patterns in Mars Hill, 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 Mars Hill, December typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9479771101099411592104116119110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mars Hill

In Mars Hill in December, humidity is 90%. With an average temperature of -7°C (20°F), this humidity feels like an oppressive chill that seeps into your bones, making travel uncomfortable and your breath visible in the frosty air.

December Average Humidity in Mars Hill

This chart illustrates the average monthly humidity levels in Mars Hill, 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 Mars Hill is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mars Hill

In Mars Hill 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 Mars Hill, you can visit Hourly UV Index in Mars Hill.

Maximum UV Index Levels in Mars Hill for December

The chart shows the monthly maximum UV Index (UVI) for Mars Hill 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 Mars Hill typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887532
Data source: Mars Hill 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 Mars Hill Compares to Other Months

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

This table compares monthly weather conditions in Mars Hill, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)94 mm (3.7 inches)93%low
February Weather-8°C (17°F)79 mm (3.1 inches)92%moderate
March Weather-4°C (26°F)77 mm (3.0 inches)90%moderate
April Weather3°C (38°F)110 mm (4.3 inches)87%high
May Weather11°C (51°F)109 mm (4.3 inches)82%very high
June Weather16°C (61°F)94 mm (3.7 inches)77%very high
July Weather19°C (67°F)115 mm (4.5 inches)81%very high
August Weather18°C (65°F)92 mm (3.6 inches)83%very high
September Weather14°C (57°F)104 mm (4.1 inches)85%high
October Weather7°C (46°F)116 mm (4.6 inches)87%moderate
November Weather0°C (32°F)118 mm (4.7 inches)87%moderate
December Weather-7°C (20°F)110 mm (4.3 inches)90%low

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