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December Weather in Three Forks, United States

Last updated: June 24, 2025

In Three Forks, United States during December, the average temperature hovers around -4°C (24°F), with extremes ranging from a chilly -27°C (-16°F) to a surprisingly mild 16°C (62°F). Expect a total precipitation of 23 mm (0.9 in) spread over 7 days, while the air remains quite humid at an average of 94%.

December Temperature in Three Forks

In December in Three Forks, the average temperature is -4°C (24°F), with maximums reaching 16°C (62°F) and minimums plunging as low as -27°C (-16°F). Be prepared for a wide range of temperatures when traveling to Three Forks during this month.

December Weather in Three Forks: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Three Forks, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Three Forks, December typically has an average temperature of -4°C (24°F), with highs reaching up to 16°C (62°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec211933415262706858423124
Data source: Temperature data for Three Forks 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 Three Forks

In Three Forks in December, the total precipitation amount is 23 mm (0.9 in) over a duration of 7 days.

December Precipitation Trends in Three Forks

The chart displays monthly precipitation patterns in Three Forks, 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 Three Forks, December typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec184327545764132131322723
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Three Forks

In Three Forks in December humidity is 94%. With an average temperature of -4°C (24°F), this humidity feels like an icy blanket wrapping around you, making travel uncomfortable and your breath visible in the frigid air.

December Average Humidity in Three Forks

This chart illustrates the average monthly humidity levels in Three Forks, 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 Three Forks is approximately 94%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%83%79%76%74%69%67%72%89%94%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Three Forks

In Three Forks 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 Three Forks, you can visit Hourly UV Index in Three Forks.

Maximum UV Index Levels in Three Forks for December

The chart shows the monthly maximum UV Index (UVI) for Three Forks 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 Three Forks typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098532
Data source: Three Forks 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 Three Forks Compares to Other Months

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

This table compares monthly weather conditions in Three Forks, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)18 mm (0.7 inches)93%moderate
February Weather-7°C (19°F)43 mm (1.7 inches)92%moderate
March Weather0°C (33°F)27 mm (1.1 inches)89%high
April Weather5°C (41°F)54 mm (2.1 inches)83%very high
May Weather11°C (52°F)57 mm (2.2 inches)79%very high
June Weather17°C (62°F)64 mm (2.5 inches)76%extreme
July Weather21°C (71°F)13 mm (0.5 inches)74%very high
August Weather20°C (69°F)21 mm (0.8 inches)69%very high
September Weather15°C (59°F)31 mm (1.2 inches)67%very high
October Weather5°C (42°F)32 mm (1.2 inches)72%moderate
November Weather0°C (32°F)27 mm (1.1 inches)89%moderate
December Weather-4°C (24°F)23 mm (0.9 inches)94%low

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