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December Weather in Fort Carson, United States

Last updated: June 24, 2025

In Fort Carson, United States, the average temperature in December hovers around -1°C (31°F), with a range that can dip as low as -18°C (-1°F) and peak at a balmy 20°C (69°F). Expect 10 mm (0.4 in) of precipitation spread over 3 days, accompanied by an average humidity of 80%. It's essential to prepare for chillier days mixed with moments of warmth!

December Temperature in Fort Carson

In December, in Fort Carson, the average temperature is -1°C (31°F), with maximums reaching 20°C (69°F) and minimums dropping as low as -18°C (-1°F). Travelers should prepare for a wide range of temperatures, ensuring to pack accordingly for both cold and mild conditions.

December Weather in Fort Carson: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fort Carson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Carson, December typically has an average temperature of -1°C (31°F), with highs reaching up to 20°C (69°F) and lows dropping to around -18°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec292838455567716963473731
Data source: Temperature data for Fort Carson 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 Fort Carson

In Fort Carson in December, the precipitation amount is 10 mm (0.4 in) over a period of 3 days.

December Precipitation Trends in Fort Carson

The chart displays monthly precipitation patterns in Fort Carson, 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 Fort Carson, December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec142145467237775630311710
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fort Carson

In Fort Carson in December humidity is 80%. With average temperature -1°C (31°F), this humidity feels like a biting chill that seeps into your bones, making every step outdoors a brisk reminder of the cold.

December Average Humidity in Fort Carson

This chart illustrates the average monthly humidity levels in Fort Carson, 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 Fort Carson is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%75%66%62%74%76%75%80%79%77%74%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fort Carson

In Fort Carson in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Fort Carson for better planning.

Maximum UV Index Levels in Fort Carson for December

The chart shows the monthly maximum UV Index (UVI) for Fort Carson 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 Fort Carson typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111213121110754
Data source: Fort Carson 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 Fort Carson Compares to Other Months

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

This table compares monthly weather conditions in Fort Carson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)14 mm (0.6 inches)74%moderate
February Weather-2°C (28°F)21 mm (0.8 inches)75%high
March Weather3°C (38°F)45 mm (1.8 inches)66%very high
April Weather7°C (45°F)46 mm (1.8 inches)62%extreme
May Weather13°C (55°F)72 mm (2.8 inches)74%extreme
June Weather19°C (67°F)37 mm (1.5 inches)76%extreme
July Weather21°C (71°F)77 mm (3.0 inches)75%extreme
August Weather21°C (69°F)56 mm (2.2 inches)80%extreme
September Weather17°C (64°F)30 mm (1.2 inches)79%very high
October Weather8°C (47°F)31 mm (1.2 inches)77%high
November Weather3°C (38°F)17 mm (0.7 inches)74%moderate
December Weather-1°C (31°F)10 mm (0.4 inches)80%moderate

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