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December Weather in Bryson, United States

Last updated: June 24, 2025

In December, the average temperature in Bryson, United States is a mild 10°C (50°F). However, be prepared for temperature swings, with a minimum dipping to -7°C (20°F) and a maximum soaring to 31°C (89°F). Expect 43 mm (1.7 in) of precipitation spread over about 4 days, accompanied by an average humidity of 85%, making it feel quite damp.

December Temperature in Bryson

In December in Bryson, the average temperature is 10°C (50°F). Maximums can reach 31°C (89°F) and minimums can be as low as -7°C (20°F). Be prepared for a wide range of temperatures when traveling, so pack accordingly for both warm days and chilly nights.

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

The chart illustrates December temperature patterns in Bryson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bryson, December typically has an average temperature of 10°C (50°F), with highs reaching up to 31°C (89°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec454759657582878579665550
Data source: Temperature data for Bryson 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 Bryson

In Bryson in December, the precipitation amount is 43 mm (1.7 in) over the course of 4 days.

December Precipitation Trends in Bryson

The chart displays monthly precipitation patterns in Bryson, 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 Bryson, December typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec395072639859275290833643
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bryson

In Bryson in December, humidity is 85%. With an average temperature of 10°C (50°F), this humidity feels like a heavy, damp blanket surrounding you, making travel feel sluggish and uncomfortable as you navigate through the thick, moist air.

December Average Humidity in Bryson

This chart illustrates the average monthly humidity levels in Bryson, 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 Bryson is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bryson

In Bryson 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 Bryson for better planning.

Maximum UV Index Levels in Bryson for December

The chart shows the monthly maximum UV Index (UVI) for Bryson 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 Bryson typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Bryson 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 Bryson Compares to Other Months

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

This table compares monthly weather conditions in Bryson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)39 mm (1.5 inches)77%moderate
February Weather8°C (47°F)50 mm (2.0 inches)76%high
March Weather15°C (59°F)72 mm (2.8 inches)74%very high
April Weather18°C (65°F)63 mm (2.5 inches)75%very high
May Weather24°C (75°F)98 mm (3.9 inches)80%extreme
June Weather28°C (83°F)59 mm (2.3 inches)80%extreme
July Weather30°C (87°F)27 mm (1.1 inches)75%extreme
August Weather30°C (86°F)52 mm (2.1 inches)67%extreme
September Weather26°C (79°F)90 mm (3.5 inches)64%very high
October Weather19°C (67°F)83 mm (3.3 inches)70%very high
November Weather13°C (55°F)36 mm (1.4 inches)82%high
December Weather10°C (50°F)43 mm (1.7 inches)85%moderate

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