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December Weather in Bethel, United States

Last updated: June 24, 2025

In December, the average temperature in Bethel, United States hovers around 2°C (37°F), with minimums dipping to a chilly -13°C (9°F) and maximums reaching a mild 16°C (61°F). Expect 114 mm (4.5 in) of precipitation over 11 days, accompanied by an average humidity of 80%. Stay prepared for an interesting mix of weather!

December Temperature in Bethel

In December in Bethel, the average temperature is 2°C (37°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -13°C (9°F).

Travelers should be prepared for chilly conditions but can also enjoy occasional warmer days.

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

The chart illustrates December temperature patterns in Bethel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethel, December typically has an average temperature of 2°C (37°F), with highs reaching up to 16°C (61°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec323440506070767468584536
Data source: Temperature data for Bethel 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 Bethel

In Bethel in December, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.

December Precipitation Trends in Bethel

The chart displays monthly precipitation patterns in Bethel, 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 Bethel, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec69102921201129412911010614092114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bethel

In Bethel in December, humidity is 80%. With an average temperature of 2°C (37°F), this humidity feels like a brisk chill that pierces through your layers, making every step outside feel invigorating yet uncomfortable, especially for travelers unaccustomed to such dampness in the cold.

December Average Humidity in Bethel

This chart illustrates the average monthly humidity levels in Bethel, 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 Bethel is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bethel

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

Maximum UV Index Levels in Bethel for December

The chart shows the monthly maximum UV Index (UVI) for Bethel 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 Bethel typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Bethel 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 Bethel Compares to Other Months

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

This table compares monthly weather conditions in Bethel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)69 mm (2.7 inches)84%moderate
February Weather1°C (35°F)102 mm (4.0 inches)82%moderate
March Weather4°C (40°F)92 mm (3.6 inches)81%high
April Weather10°C (50°F)120 mm (4.7 inches)78%very high
May Weather15°C (60°F)112 mm (4.4 inches)69%very high
June Weather21°C (70°F)94 mm (3.7 inches)69%very high
July Weather24°C (76°F)129 mm (5.1 inches)62%very high
August Weather23°C (75°F)110 mm (4.3 inches)65%very high
September Weather20°C (68°F)106 mm (4.2 inches)68%very high
October Weather14°C (58°F)139 mm (5.5 inches)74%high
November Weather7°C (45°F)92 mm (3.6 inches)82%moderate
December Weather2°C (37°F)114 mm (4.5 inches)80%low

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