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December Weather in Marcellus, United States

Last updated: June 24, 2025

In December, the average temperature in Marcellus, United States hovers around 1°C (33°F). Expect a chilly range, with minimum temperatures dipping as low as -24°C (-11°F) and a maximum reaching up to 17°C (63°F). Precipitation is likely, with about 64 mm (2.5 in) falling over 11 days, and the air will feel quite humid, with an average humidity of 86%.

December Temperature in Marcellus

In December in Marcellus, the average temperature is 1°C (33°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -24°C (-11°F). Be sure to pack layers and prepare for a wide range of temperatures while traveling.

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

The chart illustrates December temperature patterns in Marcellus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marcellus, December typically has an average temperature of 1°C (33°F), with highs reaching up to 17°C (63°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec272838476071757266543933
Data source: Temperature data for Marcellus 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 Marcellus

In Marcellus in December, the total precipitation amount is 64 mm (2.5 in) spread over 11 days.

December Precipitation Trends in Marcellus

The chart displays monthly precipitation patterns in Marcellus, 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 Marcellus, December typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec74789010515712911285851417464
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marcellus

In Marcellus in December humidity is 86%. With average temperature 1°C (33°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers for warmth to counteract the dampness in the air.

December Average Humidity in Marcellus

This chart illustrates the average monthly humidity levels in Marcellus, 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 Marcellus is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marcellus

In Marcellus 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 Marcellus, you can check the information here.

Maximum UV Index Levels in Marcellus for December

The chart shows the monthly maximum UV Index (UVI) for Marcellus 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 Marcellus typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101097643
Data source: Marcellus 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 Marcellus Compares to Other Months

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

This table compares monthly weather conditions in Marcellus, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)74 mm (2.9 inches)85%moderate
February Weather-2°C (28°F)78 mm (3.1 inches)85%moderate
March Weather3°C (38°F)90 mm (3.6 inches)86%high
April Weather8°C (47°F)105 mm (4.1 inches)87%very high
May Weather16°C (60°F)157 mm (6.2 inches)81%very high
June Weather22°C (71°F)129 mm (5.1 inches)82%very high
July Weather24°C (75°F)112 mm (4.4 inches)81%very high
August Weather22°C (72°F)85 mm (3.4 inches)79%very high
September Weather19°C (67°F)85 mm (3.3 inches)78%high
October Weather12°C (54°F)141 mm (5.5 inches)81%high
November Weather4°C (40°F)74 mm (2.9 inches)89%moderate
December Weather1°C (33°F)64 mm (2.5 inches)86%moderate

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