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December Weather in Hill City, United States

Last updated: June 24, 2025

In Hill City, United States, the average temperature in December hovers around 2°C (35°F). Expect a chilly minimum of -20°C (-3°F), while the occasional warm peak can reach 24°C (75°F). With a precipitation of 27 mm (1.1 in) spread over three days, you might want to carry an umbrella! Additionally, the air maintains an average humidity of 83%, creating a notably brisk atmosphere.

December Temperature in Hill City

In December in Hill City, the average temperature is 2°C (35°F), with maximums reaching 24°C (75°F) and minimums dropping as low as -20°C (-3°F). This makes it an ideal time for travelers who enjoy a mix of mild days and crisp, cool nights.

December Weather in Hill City: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Hill City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hill City, December typically has an average temperature of 2°C (35°F), with highs reaching up to 24°C (75°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec303144526376807671544335
Data source: Temperature data for Hill City 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 Hill City

In Hill City in December, the total precipitation amount is 27 mm (1.1 in) over the course of 3 days.

December Precipitation Trends in Hill City

The chart displays monthly precipitation patterns in Hill City, 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 Hill City, December typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2118663814668768157601727
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hill City

In Hill City in December humidity is 83%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel quite taxing.

December Average Humidity in Hill City

This chart illustrates the average monthly humidity levels in Hill City, 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 Hill City is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hill City

In Hill City 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 Hill City, you can check the information here.

Maximum UV Index Levels in Hill City for December

The chart shows the monthly maximum UV Index (UVI) for Hill City 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 Hill City typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Hill City 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 Hill City Compares to Other Months

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

This table compares monthly weather conditions in Hill City, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)21 mm (0.8 inches)74%moderate
February Weather-1°C (31°F)18 mm (0.7 inches)78%moderate
March Weather7°C (44°F)66 mm (2.6 inches)67%high
April Weather11°C (53°F)37 mm (1.5 inches)70%very high
May Weather17°C (63°F)146 mm (5.7 inches)82%very high
June Weather25°C (77°F)68 mm (2.7 inches)81%extreme
July Weather27°C (80°F)76 mm (3.0 inches)80%extreme
August Weather24°C (76°F)81 mm (3.2 inches)80%very high
September Weather22°C (71°F)57 mm (2.3 inches)73%very high
October Weather12°C (54°F)60 mm (2.4 inches)71%high
November Weather6°C (44°F)17 mm (0.7 inches)79%moderate
December Weather2°C (35°F)27 mm (1.1 inches)83%moderate

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