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December Weather in Garrett, United States

Last updated: June 24, 2025

In December, the average temperature in Garrett, United States hovers around 3°C (37°F), with a minimum dipping as low as -13°C (8°F) and a maximum peaking at 20°C (69°F). Expect some rainfall, with an average precipitation of 55 mm (2.2 in) spread across 11 days, and a humidity level that stays high at 87%. Embrace the crisp conditions and prepare for a mix of chilly and mild weather!

December Temperature in Garrett

In December in Garrett, the average temperature is 3°C (37°F). The maximum can reach 20°C (69°F) and the minimum can be as low as -13°C (8°F). Travelers should be prepared for a wide range of temperatures and plan their clothing accordingly.

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

The chart illustrates December temperature patterns in Garrett, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garrett, December typically has an average temperature of 3°C (37°F), with highs reaching up to 20°C (69°F) and lows dropping to around -13°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec373745526170787666534437
Data source: Temperature data for Garrett 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 Garrett

In Garrett, in December, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

December Precipitation Trends in Garrett

The chart displays monthly precipitation patterns in Garrett, 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 Garrett, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec4979473627140616385456
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Garrett

In Garrett in December, humidity is 87%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating proper layers to stay warm while navigating the wet conditions.

December Average Humidity in Garrett

This chart illustrates the average monthly humidity levels in Garrett, 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 Garrett is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%85%83%77%81%77%60%58%75%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Garrett

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

Maximum UV Index Levels in Garrett for December

The chart shows the monthly maximum UV Index (UVI) for Garrett 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 Garrett typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Garrett 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 Garrett Compares to Other Months

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

This table compares monthly weather conditions in Garrett, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)49 mm (1.9 inches)86%low
February Weather3°C (38°F)79 mm (3.1 inches)86%moderate
March Weather7°C (45°F)47 mm (1.9 inches)85%high
April Weather11°C (52°F)36 mm (1.4 inches)83%high
May Weather16°C (61°F)27 mm (1.1 inches)77%very high
June Weather21°C (70°F)14 mm (0.5 inches)81%very high
July Weather26°C (78°F)0 mm (0.0 inches)76%very high
August Weather25°C (76°F)6 mm (0.2 inches)60%very high
September Weather19°C (66°F)16 mm (0.6 inches)58%high
October Weather11°C (53°F)38 mm (1.5 inches)75%moderate
November Weather6°C (44°F)54 mm (2.1 inches)85%moderate
December Weather3°C (37°F)55 mm (2.2 inches)87%low

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