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December Weather in Heber City, United States

Last updated: June 24, 2025

In Heber City, United States during December, the average temperature hovers around -6°C (21°F). Expect chilly extremes, with a minimum reaching -24°C (-11°F) and a maximum climbing to 10°C (51°F). Rainy days are frequent, with a precipitation amount of 71 mm (2.8 in) spread over 11 days. Additionally, the air tends to feel humid, boasting an average humidity of 88%.

December Temperature in Heber City

In December in Heber City, the average temperature is -6°C (21°F), with maximums reaching up to 10°C (51°F) and minimums plummeting as low as -24°C (-11°F). Travelers should be prepared for cold conditions and pack accordingly to fully enjoy their visit.

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

The chart illustrates December temperature patterns in Heber City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heber City, December typically has an average temperature of -6°C (21°F), with highs reaching up to 10°C (51°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec212332364560696657403121
Data source: Temperature data for Heber 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 Heber City

In Heber City in December, the precipitation amount is 71 mm (2.8 in) distributed over 11 days.

December Precipitation Trends in Heber City

The chart displays monthly precipitation patterns in Heber 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 Heber City, December typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec818977697125263238515271
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Heber City

In Heber City in December, humidity is 88%. With an average temperature of -6°C (21°F), this humidity feels like an intense chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm.

December Average Humidity in Heber City

This chart illustrates the average monthly humidity levels in Heber 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 Heber City is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Heber City

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

Maximum UV Index Levels in Heber City for December

The chart shows the monthly maximum UV Index (UVI) for Heber 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 Heber City typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46911111212119753
Data source: Heber 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 Heber City Compares to Other Months

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

This table compares monthly weather conditions in Heber City, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)81 mm (3.2 inches)91%moderate
February Weather-5°C (24°F)89 mm (3.5 inches)92%high
March Weather0°C (32°F)77 mm (3.0 inches)84%very high
April Weather2°C (36°F)69 mm (2.7 inches)74%extreme
May Weather7°C (45°F)71 mm (2.8 inches)62%extreme
June Weather16°C (61°F)25 mm (1.0 inches)56%extreme
July Weather20°C (69°F)26 mm (1.0 inches)44%extreme
August Weather19°C (67°F)32 mm (1.2 inches)37%extreme
September Weather14°C (57°F)38 mm (1.5 inches)46%very high
October Weather5°C (40°F)51 mm (2.0 inches)67%high
November Weather-1°C (31°F)51 mm (2.0 inches)84%moderate
December Weather-6°C (21°F)71 mm (2.8 inches)88%moderate

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