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December Weather in Granville, United States

Last updated: June 24, 2025

In December, the average temperature in Granville, United States hovers around 2°C (37°F). During this time, temperatures can dip as low as -16°C (3°F) and reach highs of 18°C (65°F). Expect 108 mm (4.3 in) of precipitation over 11 days, accompanied by an average humidity of 87%. Be prepared for a mixture of chilly days and potential rainfall!

December Temperature in Granville

In December in Granville, the average temperature is 2°C (37°F). Maximum temperatures can reach 18°C (65°F), while the minimum can drop as low as -16°C (3°F). It's advisable to pack layers if you're traveling during this month, as the weather can vary significantly.

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

The chart illustrates December temperature patterns in Granville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granville, December typically has an average temperature of 2°C (37°F), with highs reaching up to 18°C (65°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec313443526472767368574236
Data source: Temperature data for Granville 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 Granville

In Granville in December, the precipitation amount is 108 mm (4.3 in) over the course of 11 days.

December Precipitation Trends in Granville

The chart displays monthly precipitation patterns in Granville, 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 Granville, December typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9011411712913916212797100106100108
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Granville

In Granville in December, humidity is 87%. With an average temperature of 2°C (37°F), this humidity feels like an uncomfortable chill that seeps into your bones, making every step feel heavier and each breath a reminder of the dampness in the air, which can be quite challenging for traveling.

December Average Humidity in Granville

This chart illustrates the average monthly humidity levels in Granville, 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 Granville is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Granville

In Granville 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 Granville, you can check the information here.

Maximum UV Index Levels in Granville for December

The chart shows the monthly maximum UV Index (UVI) for Granville 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 Granville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Granville 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 Granville Compares to Other Months

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

This table compares monthly weather conditions in Granville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)90 mm (3.5 inches)88%moderate
February Weather1°C (35°F)114 mm (4.5 inches)88%moderate
March Weather6°C (43°F)117 mm (4.6 inches)87%high
April Weather11°C (52°F)129 mm (5.1 inches)85%very high
May Weather18°C (64°F)139 mm (5.5 inches)81%very high
June Weather22°C (72°F)162 mm (6.4 inches)82%very high
July Weather24°C (76°F)127 mm (5.0 inches)81%very high
August Weather23°C (73°F)97 mm (3.8 inches)73%very high
September Weather20°C (69°F)100 mm (3.9 inches)73%very high
October Weather14°C (58°F)106 mm (4.2 inches)78%high
November Weather6°C (42°F)100 mm (3.9 inches)89%moderate
December Weather2°C (37°F)108 mm (4.3 inches)87%moderate

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