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December Weather in Roanoke, United States

Last updated: June 24, 2025

In December, the average temperature in Roanoke, United States hovers around 10°C (49°F). Expect a notable range, with minimums dipping to -8°C (18°F) and maximums climbing to 24°C (75°F). Rainfall is not uncommon, with 145 mm (5.7 in) of precipitation spread over 12 days, contributing to a high average humidity of 88%.

December Temperature in Roanoke

In December in Roanoke, the average temperature is 10°C (49°F). Maximums can reach 24°C (75°F) and minimums can be as low as -8°C (18°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Roanoke, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roanoke, December typically has an average temperature of 10°C (49°F), with highs reaching up to 24°C (75°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec465257637177807976675349
Data source: Temperature data for Roanoke 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 Roanoke

In Roanoke in December, the precipitation amount is 145 mm (5.7 in) over the course of 12 days.

December Precipitation Trends in Roanoke

The chart displays monthly precipitation patterns in Roanoke, 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 Roanoke, December typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec10814611413010111810513110211784145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Roanoke

In Roanoke in December humidity is 88%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and leading to a sense of sluggishness that can dampen the excitement of exploring the area.

December Average Humidity in Roanoke

This chart illustrates the average monthly humidity levels in Roanoke, 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 Roanoke is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Roanoke

In Roanoke in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Roanoke for better planning.

Maximum UV Index Levels in Roanoke for December

The chart shows the monthly maximum UV Index (UVI) for Roanoke 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 Roanoke typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Roanoke 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 Roanoke Compares to Other Months

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

This table compares monthly weather conditions in Roanoke, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)108 mm (4.3 inches)85%moderate
February Weather11°C (53°F)146 mm (5.7 inches)84%high
March Weather14°C (58°F)114 mm (4.5 inches)82%very high
April Weather17°C (63°F)130 mm (5.1 inches)82%very high
May Weather22°C (72°F)101 mm (4.0 inches)81%extreme
June Weather25°C (77°F)118 mm (4.6 inches)77%extreme
July Weather26°C (80°F)105 mm (4.1 inches)77%extreme
August Weather26°C (79°F)131 mm (5.2 inches)72%extreme
September Weather24°C (76°F)102 mm (4.0 inches)73%very high
October Weather19°C (67°F)117 mm (4.6 inches)73%very high
November Weather12°C (53°F)84 mm (3.3 inches)85%high
December Weather10°C (49°F)145 mm (5.7 inches)88%moderate

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