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December Weather in Shelby, United States

Last updated: June 24, 2025

In December, the average temperature in Shelby, United States hovers around -4°C (25°F). However, temperatures can swing dramatically, dipping as low as -31°C (-23°F) and occasionally peaking at 17°C (63°F). Expect 22 mm (0.9 in) of precipitation over about 5 days, contributing to a notably high average humidity of 89%.

December Temperature in Shelby

In December in Shelby, the average temperature is -4°C (25°F), with a maximum that can reach 17°C (63°F) and a minimum that can drop as low as -31°C (-23°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates December temperature patterns in Shelby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shelby, December typically has an average temperature of -4°C (25°F), with highs reaching up to 17°C (63°F) and lows dropping to around -31°C (-23°F).
JanFebMarAprMayJunJulAugSepOctNovDec221630405362706757413225
Data source: Temperature data for Shelby 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 Shelby

In Shelby in December, the total precipitation amount is 22 mm (0.9 in) spread over a period of 5 days.

December Precipitation Trends in Shelby

The chart displays monthly precipitation patterns in Shelby, 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 Shelby, December typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec143521426255112227232822
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Shelby

In Shelby in December humidity is 89%. With an average temperature of -4°C (25°F), this humidity feels like an intense chill that seeps into your bones, making traveling uncomfortable as you navigate through the damp, cold air.

December Average Humidity in Shelby

This chart illustrates the average monthly humidity levels in Shelby, 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 Shelby is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%83%76%73%75%75%70%67%72%82%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Shelby

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

Maximum UV Index Levels in Shelby for December

The chart shows the monthly maximum UV Index (UVI) for Shelby 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 Shelby typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799997532
Data source: Shelby 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 Shelby Compares to Other Months

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

This table compares monthly weather conditions in Shelby, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)14 mm (0.5 inches)86%low
February Weather-9°C (16°F)35 mm (1.4 inches)89%moderate
March Weather-1°C (30°F)21 mm (0.8 inches)83%moderate
April Weather4°C (40°F)42 mm (1.6 inches)75%high
May Weather12°C (53°F)62 mm (2.5 inches)72%very high
June Weather17°C (62°F)55 mm (2.1 inches)75%very high
July Weather21°C (70°F)11 mm (0.4 inches)75%very high
August Weather20°C (67°F)22 mm (0.9 inches)69%very high
September Weather14°C (57°F)27 mm (1.1 inches)66%high
October Weather5°C (42°F)23 mm (0.9 inches)72%moderate
November Weather0°C (33°F)28 mm (1.1 inches)82%moderate
December Weather-4°C (25°F)22 mm (0.9 inches)89%low

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