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December Weather in The Hills, United States

Last updated: June 24, 2025

In The Hills, United States, the average temperature in December hovers around 12°C (55°F). Expect a range from a brisk -3°C (27°F) at the lowest to a warm 28°C (83°F) at the highest. With 67 mm (2.6 in) of precipitation spread over about 7 days, don’t forget your umbrella! The average humidity reaches a cozy 87%, adding to the region's unique climate charm.

December Temperature in The Hills

In December in The Hills, the average temperature is 12°C (55°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -3°C (27°F). This variety in temperature makes it essential for travelers to prepare for both warm and chilly conditions.

December Weather in The Hills: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in The Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In The Hills, December typically has an average temperature of 12°C (55°F), with highs reaching up to 28°C (83°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec515363687681848579705954
Data source: Temperature data for The Hills 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 The Hills

In The Hills in December, the total precipitation amount is 67 mm (2.6 in) over a span of 7 days.

December Precipitation Trends in The Hills

The chart displays monthly precipitation patterns in The Hills, 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 The Hills, December typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec495967811549568109112924467
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in The Hills

In The Hills in December humidity is 87%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers for comfort while traveling.

December Average Humidity in The Hills

This chart illustrates the average monthly humidity levels in The Hills, 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 The Hills is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in The Hills

In The Hills 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 The Hills for better planning.

Maximum UV Index Levels in The Hills for December

The chart shows the monthly maximum UV Index (UVI) for The Hills 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 The Hills typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121111964
Data source: The Hills 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 The Hills Compares to Other Months

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

This table compares monthly weather conditions in The Hills, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (51°F)49 mm (1.9 inches)78%moderate
February Weather12°C (53°F)59 mm (2.3 inches)78%high
March Weather17°C (63°F)67 mm (2.6 inches)77%very high
April Weather20°C (68°F)81 mm (3.2 inches)78%extreme
May Weather24°C (76°F)154 mm (6.1 inches)82%extreme
June Weather27°C (82°F)95 mm (3.7 inches)78%extreme
July Weather29°C (85°F)68 mm (2.7 inches)69%extreme
August Weather30°C (85°F)109 mm (4.3 inches)63%extreme
September Weather26°C (79°F)112 mm (4.4 inches)66%extreme
October Weather21°C (70°F)92 mm (3.6 inches)73%very high
November Weather15°C (60°F)43 mm (1.7 inches)84%high
December Weather12°C (55°F)67 mm (2.6 inches)87%moderate

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