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December Weather in Hennessey, United States

Last updated: June 24, 2025

In December, the average temperature in Hennessey, United States is a cool 6°C (43°F). While temperatures can dip as low as -9°C (15°F), they can also rise to a maximum of 27°C (81°F). Expect around 26 mm (1.0 in) of precipitation, typically spread over 2 days, and with an average humidity of 84%, it’s sure to feel quite damp.

December Temperature in Hennessey

In December in Hennessey, the average temperature is 6°C (43°F). The maximum can reach 27°C (81°F) and the minimum can be as low as -9°C (15°F). Be prepared for a wide range of temperatures if you plan to visit during this time.

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

The chart illustrates December temperature patterns in Hennessey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hennessey, December typically has an average temperature of 6°C (43°F), with highs reaching up to 27°C (81°F) and lows dropping to around -9°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec383953596980838176614943
Data source: Temperature data for Hennessey 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 Hennessey

In Hennessey in December, the precipitation amount is 26 mm (1.0 in) over the course of 2 days.

December Precipitation Trends in Hennessey

The chart displays monthly precipitation patterns in Hennessey, 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 Hennessey, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec44328591142102596865852526
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hennessey

In Hennessey in December, humidity is 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.

December Average Humidity in Hennessey

This chart illustrates the average monthly humidity levels in Hennessey, 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 Hennessey is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%70%72%82%82%80%72%64%71%81%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hennessey

In Hennessey 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 Hennessey, you can check the information here.

Maximum UV Index Levels in Hennessey for December

The chart shows the monthly maximum UV Index (UVI) for Hennessey 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 Hennessey typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110753
Data source: Hennessey 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 Hennessey Compares to Other Months

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

This table compares monthly weather conditions in Hennessey, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)44 mm (1.7 inches)76%moderate
February Weather4°C (40°F)32 mm (1.2 inches)76%high
March Weather12°C (53°F)85 mm (3.3 inches)70%very high
April Weather15°C (59°F)91 mm (3.6 inches)72%very high
May Weather21°C (70°F)142 mm (5.6 inches)82%extreme
June Weather26°C (80°F)102 mm (4.0 inches)82%extreme
July Weather28°C (84°F)59 mm (2.3 inches)80%extreme
August Weather27°C (81°F)68 mm (2.7 inches)72%extreme
September Weather24°C (76°F)65 mm (2.6 inches)64%very high
October Weather16°C (61°F)85 mm (3.3 inches)71%high
November Weather10°C (49°F)25 mm (1.0 inches)81%moderate
December Weather6°C (43°F)26 mm (1.0 inches)84%moderate

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