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December Weather in Unadilla, United States

Last updated: June 24, 2025

In December, the average temperature in Unadilla, United States hovers around -1°C (30°F), setting the stage for a chilly experience. Expect minimum dips to -20°C (-5°F) and occasional highs reaching 16°C (61°F). With 94 mm (3.7 in) of precipitation spread over 14 days, it's wise to prepare for wet conditions. The atmosphere is quite humid, averaging 86%, contributing to that frosty feeling in the air.

December Temperature in Unadilla

In December in Unadilla, the average temperature is -1°C (30°F). The maximum can reach 16°C (61°F), and the minimum can be as low as -20°C (-5°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack both warm and mild weather clothing.

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

The chart illustrates December temperature patterns in Unadilla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unadilla, December typically has an average temperature of -1°C (30°F), with highs reaching up to 16°C (61°F) and lows dropping to around -20°C (-5°F).
JanFebMarAprMayJunJulAugSepOctNovDec242733455765706862523730
Data source: Temperature data for Unadilla 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 Unadilla

In Unadilla in December, the precipitation amount is 94 mm (3.7 in) recorded over the course of 14 days.

December Precipitation Trends in Unadilla

The chart displays monthly precipitation patterns in Unadilla, 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 Unadilla, December typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec79948912513011113312110714810395
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Unadilla

In Unadilla in December, humidity is 86%. With an average temperature of -1°C (30°F), this humidity feels like a heavy blanket wrapping around you, making traveling feel much colder and more uncomfortable than the temperature suggests.

December Average Humidity in Unadilla

This chart illustrates the average monthly humidity levels in Unadilla, 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 Unadilla is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Unadilla

In Unadilla in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Unadilla, you can visit Hourly UV Index in Unadilla.

Maximum UV Index Levels in Unadilla for December

The chart shows the monthly maximum UV Index (UVI) for Unadilla 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 Unadilla typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
Data source: Unadilla 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 Unadilla Compares to Other Months

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

This table compares monthly weather conditions in Unadilla, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)79 mm (3.1 inches)90%moderate
February Weather-3°C (28°F)94 mm (3.7 inches)90%moderate
March Weather1°C (33°F)89 mm (3.5 inches)87%high
April Weather7°C (45°F)125 mm (4.9 inches)88%very high
May Weather14°C (57°F)130 mm (5.1 inches)82%very high
June Weather18°C (65°F)111 mm (4.4 inches)79%very high
July Weather21°C (71°F)133 mm (5.3 inches)78%very high
August Weather20°C (69°F)121 mm (4.8 inches)76%very high
September Weather17°C (62°F)107 mm (4.2 inches)78%very high
October Weather11°C (52°F)148 mm (5.8 inches)84%high
November Weather3°C (37°F)103 mm (4.0 inches)89%moderate
December Weather-1°C (30°F)94 mm (3.7 inches)86%low

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