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December Weather in Port Huron, United States

Last updated: June 24, 2025

In December, the average temperature in Port Huron, United States hovers around 0°C (33°F). Expect chilly nights with minimums plummeting to -18°C (0°F), while daytime highs can reach up to 16°C (61°F). During this month, the region experiences 55 mm (2.2 in) of precipitation spread over approximately 10 days, contributing to a high average humidity of 86%. Bundle up and be prepared for a mix of cold and damp conditions!

December Temperature in Port Huron

In December in Port Huron, the average temperature is 0°C (33°F). Maximum temperatures can reach 16°C (61°F), while minimums can dip as low as -18°C (0°F). Be prepared for a wide range of temperatures when traveling during this time.

December Weather in Port Huron: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Port Huron, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Huron, December typically has an average temperature of 0°C (33°F), with highs reaching up to 16°C (61°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec262735445668737265544032
Data source: Temperature data for Port Huron 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 Port Huron

In Port Huron in December, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

December Precipitation Trends in Port Huron

The chart displays monthly precipitation patterns in Port Huron, 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 Port Huron, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6166639597867379731067255
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Port Huron

In Port Huron in December humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.

December Average Humidity in Port Huron

This chart illustrates the average monthly humidity levels in Port Huron, 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 Port Huron is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Port Huron

In Port Huron 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 Port Huron, you can visit Hourly UV Index in Port Huron.

Maximum UV Index Levels in Port Huron for December

The chart shows the monthly maximum UV Index (UVI) for Port Huron 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 Port Huron typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Port Huron 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 Port Huron Compares to Other Months

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

This table compares monthly weather conditions in Port Huron, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)60 mm (2.4 inches)88%low
February Weather-3°C (28°F)66 mm (2.6 inches)87%moderate
March Weather1°C (35°F)63 mm (2.5 inches)85%moderate
April Weather7°C (45°F)95 mm (3.7 inches)86%very high
May Weather13°C (57°F)97 mm (3.8 inches)80%very high
June Weather20°C (68°F)86 mm (3.4 inches)80%very high
July Weather23°C (73°F)73 mm (2.9 inches)80%very high
August Weather22°C (72°F)79 mm (3.1 inches)80%very high
September Weather18°C (65°F)73 mm (2.9 inches)80%high
October Weather12°C (54°F)106 mm (4.2 inches)84%moderate
November Weather4°C (40°F)72 mm (2.8 inches)89%moderate
December Weather0°C (33°F)55 mm (2.2 inches)86%low

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