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December Weather in Grant City, United States

Last updated: June 24, 2025

In December, the average temperature in Grant City, United States hovers around 1°C (33°F). However, temperatures can swing dramatically, with minimums plunging to -24°C (-11°F) and maximums reaching 22°C (73°F). Expect a modest precipitation of 38 mm (1.5 in) over the span of 4 days, paired with an average humidity of 83%.

December Temperature in Grant City

In December in Grant City, the average temperature is 1°C (33°F). The maximum can reach 22°C (73°F) and the minimum can be as low as -24°C (-11°F). Be prepared for a wide range of temperatures and pack accordingly for your trip to Grant City during this month.

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

The chart illustrates December temperature patterns in Grant City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grant City, December typically has an average temperature of 1°C (33°F), with highs reaching up to 22°C (73°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec262842516476787569544033
Data source: Temperature data for Grant 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 Grant City

In Grant City in December, the total precipitation amount is 38 mm (1.5 in) spread over the course of 4 days.

December Precipitation Trends in Grant City

The chart displays monthly precipitation patterns in Grant 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 Grant City, December typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec423399781731371161041241604538
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grant City

In Grant City in December, humidity is 83%. With an average temperature of 1°C (33°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable than expected.

December Average Humidity in Grant City

This chart illustrates the average monthly humidity levels in Grant 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 Grant City is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grant City

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

Maximum UV Index Levels in Grant City for December

The chart shows the monthly maximum UV Index (UVI) for Grant 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 Grant City typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111099643
Data source: Grant 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 Grant City Compares to Other Months

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

This table compares monthly weather conditions in Grant City, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)42 mm (1.6 inches)78%moderate
February Weather-2°C (28°F)33 mm (1.3 inches)80%moderate
March Weather6°C (43°F)99 mm (3.9 inches)77%high
April Weather11°C (51°F)78 mm (3.1 inches)77%very high
May Weather18°C (64°F)173 mm (6.8 inches)77%very high
June Weather24°C (76°F)137 mm (5.4 inches)81%extreme
July Weather25°C (78°F)116 mm (4.6 inches)81%very high
August Weather24°C (75°F)104 mm (4.1 inches)77%very high
September Weather21°C (69°F)124 mm (4.9 inches)73%very high
October Weather12°C (54°F)160 mm (6.3 inches)75%high
November Weather5°C (41°F)45 mm (1.8 inches)85%moderate
December Weather1°C (33°F)38 mm (1.5 inches)83%moderate

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