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December Weather in Bethel, United States

Last updated: June 24, 2025

In Bethel, United States, the average temperature in December hovers around -6°C (22°F). However, temperatures can plummet as low as -27°C (-17°F) and occasionally reach a maximum of 14°C (57°F). Residents can expect about 109 mm (4.3 in) of precipitation spread over 11 days, with an average humidity of 85%, making December a notably chilly and damp time of year.

December Temperature in Bethel

In December in Bethel, the average temperature is -6°C (22°F). Maximum temperatures can reach 14°C (57°F), while minimums can drop as low as -27°C (-17°F). Therefore, travelers should prepare for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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 -6°C (22°F), with highs reaching up to 14°C (57°F) and lows dropping to around -27°C (-17°F).
JanFebMarAprMayJunJulAugSepOctNovDec172027405362676659473222
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 precipitation amount is 109 mm (4.3 in), occurring over a span of 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 109 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec818570123879213510263122104109
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 85%. With an average temperature of -6°C (22°F), this humidity feels like an icy mist clinging to your skin, making outdoor activities uncomfortably chilly and causing your breath to cloud in the cold air, leaving you yearning for warmth and cozy indoor retreats while traveling.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
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.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
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 Weather-8°C (17°F)81 mm (3.2 inches)91%low
February Weather-7°C (20°F)85 mm (3.4 inches)89%moderate
March Weather-3°C (27°F)70 mm (2.8 inches)85%high
April Weather4°C (40°F)123 mm (4.8 inches)84%very high
May Weather11°C (53°F)87 mm (3.4 inches)78%very high
June Weather17°C (63°F)91 mm (3.6 inches)72%very high
July Weather20°C (68°F)135 mm (5.3 inches)75%very high
August Weather19°C (66°F)102 mm (4.0 inches)74%very high
September Weather15°C (59°F)63 mm (2.5 inches)77%high
October Weather8°C (47°F)122 mm (4.8 inches)85%moderate
November Weather0°C (33°F)104 mm (4.1 inches)86%moderate
December Weather-6°C (22°F)109 mm (4.3 inches)85%low

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