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December Weather in Rockwood, United States

Last updated: June 24, 2025

In December, the average temperature in Rockwood, United States hovers around 7°C (45°F). With a minimum dip to -8°C (17°F) and a possible high of 21°C (71°F), this month presents a diverse climate. Be prepared for 139 mm (5.5 in) of precipitation spread over 10 days, while the air tends to be quite damp with an average humidity of 88%.

December Temperature in Rockwood

In December in Rockwood, the average temperature is 7°C (45°F). Maximums can reach 21°C (71°F), while minimums can drop as low as -8°C (17°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Rockwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockwood, December typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (71°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec414652596975787773634945
Data source: Temperature data for Rockwood 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 Rockwood

In Rockwood, in December, the total precipitation amount is 139 mm (5.5 in) accumulated over 10 days.

December Precipitation Trends in Rockwood

The chart displays monthly precipitation patterns in Rockwood, 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 Rockwood, December typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10017716315612712313213610112576139
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rockwood

In Rockwood in December humidity is 88%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through a heavy, thick atmosphere that clings to your skin.

December Average Humidity in Rockwood

This chart illustrates the average monthly humidity levels in Rockwood, 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 Rockwood is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rockwood

In Rockwood 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 Rockwood, you can check the information here.

Maximum UV Index Levels in Rockwood for December

The chart shows the monthly maximum UV Index (UVI) for Rockwood 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 Rockwood typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Rockwood 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 Rockwood Compares to Other Months

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

This table compares monthly weather conditions in Rockwood, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)100 mm (3.9 inches)86%moderate
February Weather8°C (46°F)177 mm (7.0 inches)86%high
March Weather11°C (52°F)163 mm (6.4 inches)86%very high
April Weather15°C (59°F)156 mm (6.1 inches)82%very high
May Weather20°C (69°F)127 mm (5.0 inches)85%extreme
June Weather24°C (75°F)123 mm (4.9 inches)85%extreme
July Weather26°C (79°F)132 mm (5.2 inches)83%extreme
August Weather25°C (77°F)136 mm (5.3 inches)76%very high
September Weather23°C (73°F)101 mm (4.0 inches)76%very high
October Weather17°C (64°F)125 mm (4.9 inches)80%high
November Weather10°C (50°F)76 mm (3.0 inches)88%moderate
December Weather7°C (45°F)139 mm (5.5 inches)88%moderate

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