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December Weather in Colby, United States

Last updated: June 24, 2025

In December, the average temperature in Colby, United States hovers around 2°C (36°F). Temperatures can swing dramatically, with a minimum of -16°C (3°F) and a maximum reaching 24°C (75°F). Expect about 18 mm (0.7 in) of precipitation over 3 days, and enjoy the high average humidity of 82% that characterizes this season.

December Temperature in Colby

In December in Colby, the average temperature is 2°C (36°F), with a maximum that can reach 24°C (75°F) and a minimum that can drop to -16°C (3°F). Travelers should be prepared for a wide range of temperatures during this month.

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

The chart illustrates December temperature patterns in Colby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Colby, December typically has an average temperature of 2°C (36°F), with highs reaching up to 24°C (75°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec313143516175787569524335
Data source: Temperature data for Colby 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 Colby

In Colby in December, the precipitation amount is 18 mm (0.7 in) over a span of 3 days.

December Precipitation Trends in Colby

The chart displays monthly precipitation patterns in Colby, 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 Colby, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec1815563711757605756521418
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Colby

In Colby in December humidity is 82%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making even brief outings feel uncomfortable and penetrating.

December Average Humidity in Colby

This chart illustrates the average monthly humidity levels in Colby, 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 Colby is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%78%66%66%83%83%83%86%82%75%77%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Colby

In Colby 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 Colby, you can check the information here.

Maximum UV Index Levels in Colby for December

The chart shows the monthly maximum UV Index (UVI) for Colby 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 Colby typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4579101211109643
Data source: Colby 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 Colby Compares to Other Months

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

This table compares monthly weather conditions in Colby, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)18 mm (0.7 inches)74%moderate
February Weather-1°C (31°F)15 mm (0.6 inches)78%moderate
March Weather6°C (43°F)56 mm (2.2 inches)66%high
April Weather10°C (51°F)37 mm (1.5 inches)66%very high
May Weather16°C (61°F)117 mm (4.6 inches)83%very high
June Weather24°C (75°F)57 mm (2.2 inches)83%extreme
July Weather25°C (78°F)60 mm (2.3 inches)83%extreme
August Weather24°C (75°F)57 mm (2.2 inches)86%very high
September Weather21°C (70°F)56 mm (2.2 inches)82%very high
October Weather11°C (52°F)52 mm (2.0 inches)75%high
November Weather6°C (44°F)14 mm (0.6 inches)77%moderate
December Weather2°C (36°F)18 mm (0.7 inches)82%moderate

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