December Weather in Grissom Air Force Base, United States

Last updated: June 24, 2025

In December, the average temperature in Grissom Air Force Base, United States hovers around 2°C (35°F). While the mercury can plunge to a chilling -22°C (-8°F), it can also reach a pleasant 17°C (63°F). During this month, expect 66 mm (2.6 in) of precipitation spread across 9 days, with the air maintaining a high average humidity of 86%.

December Temperature in Grissom Air Force Base

In December in Grissom Air Force Base, the average temperature is 2°C (35°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -22°C (-8°F). Be prepared for a wide range of temperatures, making it essential to dress in layers for your travels.

December Weather in Grissom Air Force Base: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Grissom Air Force Base, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grissom Air Force Base, December typically has an average temperature of 2°C (35°F), with highs reaching up to 17°C (63°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec283141516373767369574135
Data source: Temperature data for Grissom Air Force Base 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 Grissom Air Force Base

In Grissom Air Force Base in December, the precipitation amount is 66 mm (2.6 in) over the course of 9 days.

December Precipitation Trends in Grissom Air Force Base

The chart displays monthly precipitation patterns in Grissom Air Force Base, 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 Grissom Air Force Base, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec768010294154104101101641047866
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grissom Air Force Base

In Grissom Air Force Base in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.

December Average Humidity in Grissom Air Force Base

This chart illustrates the average monthly humidity levels in Grissom Air Force Base, 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 Grissom Air Force Base is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grissom Air Force Base

In Grissom Air Force Base 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 Grissom Air Force Base, you can visit Hourly UV Index in Grissom Air Force Base.

Maximum UV Index Levels in Grissom Air Force Base for December

The chart shows the monthly maximum UV Index (UVI) for Grissom Air Force Base 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 Grissom Air Force Base typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
Data source: Grissom Air Force Base 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 Grissom Air Force Base Compares to Other Months

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

This table compares monthly weather conditions in Grissom Air Force Base, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)76 mm (3.0 inches)85%moderate
February Weather-1°C (31°F)79 mm (3.1 inches)85%moderate
March Weather5°C (41°F)102 mm (4.0 inches)86%high
April Weather10°C (51°F)94 mm (3.7 inches)87%very high
May Weather17°C (63°F)154 mm (6.1 inches)81%very high
June Weather23°C (73°F)104 mm (4.1 inches)82%very high
July Weather25°C (76°F)101 mm (4.0 inches)81%very high
August Weather23°C (74°F)101 mm (4.0 inches)79%very high
September Weather20°C (69°F)64 mm (2.5 inches)78%very high
October Weather14°C (57°F)104 mm (4.1 inches)81%high
November Weather5°C (41°F)78 mm (3.1 inches)89%moderate
December Weather2°C (35°F)66 mm (2.6 inches)86%low

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