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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 4°C (39°F), with variations that can dip as low as -15°C (5°F) and peak at 19°C (67°F). Expect a significant precipitation amount of 122 mm (4.8 in) spread across approximately 11 days, while the atmosphere remains notably humid at an average of 87%.

December Temperature in Bethel

In December in Bethel, the average temperature is a chilly 4°C (39°F), with maximums reaching up to 19°C (67°F) and minimums dropping as low as -15°C (5°F). This variation in temperature requires travelers to prepare for both cold and mild weather conditions.

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 4°C (39°F), with highs reaching up to 19°C (67°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec333745546673777570594439
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 122 mm (4.8 in) 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 122 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8712213914113715011184101103100122
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 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
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 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Bethel, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
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 Weather1°C (34°F)87 mm (3.4 inches)88%moderate
February Weather3°C (38°F)122 mm (4.8 inches)88%moderate
March Weather7°C (46°F)139 mm (5.5 inches)87%high
April Weather12°C (55°F)141 mm (5.5 inches)85%very high
May Weather19°C (66°F)136 mm (5.4 inches)81%very high
June Weather23°C (73°F)150 mm (5.9 inches)82%very high
July Weather25°C (77°F)111 mm (4.4 inches)81%very high
August Weather24°C (75°F)84 mm (3.3 inches)73%very high
September Weather21°C (70°F)101 mm (4.0 inches)73%very high
October Weather15°C (59°F)103 mm (4.0 inches)78%high
November Weather7°C (44°F)100 mm (3.9 inches)89%moderate
December Weather4°C (39°F)122 mm (4.8 inches)87%moderate

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