nomadseason

December Weather in Hermantown, United States

Last updated: June 24, 2025

In December, the average temperature in Hermantown, United States hovers around -6°C (21°F), with lows plummeting to -30°C (-22°F) and highs reaching up to 10°C (50°F). Expect a precipitation total of 62 mm (2.4 in) spread across 9 days, alongside a notably high average humidity of 91%. Prepare for chilly and damp conditions!

December Temperature in Hermantown

In December in Hermantown, the average temperature is -6°C (21°F). Maximum temperatures can reach 10°C (50°F), while minimums can drop as low as -30°C (-22°F). Be prepared for extreme temperature fluctuations when traveling to Hermantown during this time.

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

The chart illustrates December temperature patterns in Hermantown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hermantown, December typically has an average temperature of -6°C (21°F), with highs reaching up to 10°C (50°F) and lows dropping to around -30°C (-22°F).
JanFebMarAprMayJunJulAugSepOctNovDec131328375162686660463120
Data source: Temperature data for Hermantown generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Hermantown

In Hermantown in December, the precipitation amount is 62 mm (2.4 in) over the course of 9 days.

December Precipitation Trends in Hermantown

The chart displays monthly precipitation patterns in Hermantown, 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 Hermantown, December typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2331467087831111081071284662
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Hermantown

In Hermantown in December humidity is 91%. With an average temperature of -6°C (21°F), this humidity feels like wandering through a cold, damp fog that clings to your skin, making it challenging to stay warm and comfortable while exploring the surroundings.

December Average Humidity in Hermantown

This chart illustrates the average monthly humidity levels in Hermantown, 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 Hermantown is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%89%85%76%71%70%71%73%82%88%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hermantown

In Hermantown 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 Hermantown, you can visit Hourly UV Index in Hermantown.

Maximum UV Index Levels in Hermantown for December

The chart shows the monthly maximum UV Index (UVI) for Hermantown 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 Hermantown typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245789987532
Data source: Hermantown 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 Hermantown Compares to Other Months

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

This table compares monthly weather conditions in Hermantown, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)23 mm (0.9 inches)93%low
February Weather-11°C (13°F)31 mm (1.2 inches)93%moderate
March Weather-2°C (28°F)46 mm (1.8 inches)89%moderate
April Weather3°C (38°F)70 mm (2.7 inches)85%high
May Weather10°C (51°F)87 mm (3.4 inches)76%very high
June Weather17°C (62°F)83 mm (3.3 inches)71%very high
July Weather20°C (68°F)111 mm (4.4 inches)70%very high
August Weather19°C (67°F)108 mm (4.3 inches)71%very high
September Weather16°C (60°F)107 mm (4.2 inches)73%high
October Weather8°C (46°F)128 mm (5.0 inches)81%moderate
November Weather-1°C (31°F)46 mm (1.8 inches)87%moderate
December Weather-6°C (21°F)62 mm (2.4 inches)91%low

Compare Hermantown's Climate with Cities Worldwide