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December Weather in Granite, United States

Last updated: June 24, 2025

In December, the average temperature in Granite, United States hovers around 6°C (44°F), with a minimum dipping to -9°C (16°F) and a comfortable maximum reaching 28°C (83°F). Expect about 26 mm (1.0 in) of precipitation spread over 3 days, accompanied by a relatively high average humidity of 84%. Be prepared for varied weather conditions!

December Temperature in Granite

In December in Granite, the average temperature is 6°C (44°F). Maximums can reach 28°C (83°F), while minimums can drop as low as -9°C (16°F). Travelers should be prepared for a wide range of temperatures, making layers essential for comfort throughout the day.

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

The chart illustrates December temperature patterns in Granite, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granite, December typically has an average temperature of 6°C (44°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec394153607079838275615043
Data source: Temperature data for Granite 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 Granite

In Granite in December, the precipitation amount is 26 mm (1.0 in) recorded over the course of 3 days.

December Precipitation Trends in Granite

The chart displays monthly precipitation patterns in Granite, 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 Granite, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec3524677512872353672751726
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Granite

In Granite in December humidity is 84%. With an average temperature of 6°C (44°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less comfortable and necessitating layered clothing to stay warm and dry while exploring the area.

December Average Humidity in Granite

This chart illustrates the average monthly humidity levels in Granite, 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 Granite 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 Granite

In Granite 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 Granite for better planning.

Maximum UV Index Levels in Granite for December

The chart shows the monthly maximum UV Index (UVI) for Granite 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 Granite typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Granite 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 Granite Compares to Other Months

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

This table compares monthly weather conditions in Granite, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)35 mm (1.4 inches)76%moderate
February Weather5°C (41°F)24 mm (0.9 inches)76%high
March Weather12°C (54°F)67 mm (2.6 inches)70%very high
April Weather15°C (60°F)75 mm (2.9 inches)72%very high
May Weather21°C (70°F)128 mm (5.0 inches)82%extreme
June Weather26°C (79°F)72 mm (2.8 inches)82%extreme
July Weather28°C (83°F)35 mm (1.4 inches)80%extreme
August Weather28°C (82°F)36 mm (1.4 inches)72%extreme
September Weather24°C (75°F)72 mm (2.8 inches)64%very high
October Weather16°C (62°F)75 mm (3.0 inches)71%high
November Weather10°C (50°F)17 mm (0.7 inches)81%moderate
December Weather6°C (44°F)26 mm (1.0 inches)84%moderate

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