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December Weather in Massena, United States

Last updated: June 24, 2025

The average temperature in Massena, United States during December hovers around -4°C (26°F), but it can vary significantly. Minimum temperatures can plunge to a biting -29°C (-20°F), while the maximum can reach a comfortable 16°C (62°F). Expect precipitation of about 85 mm (3.3 in) over approximately 12 days, alongside a notably high average humidity of 89%. Be prepared for a chilly and damp month!

December Temperature in Massena

In December in Massena, the average temperature is -4°C (26°F). The maximum can reach 16°C (62°F), while the minimum can drop as low as -29°C (-20°F). Be prepared for a wide temperature range and pack accordingly for your travels!

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

The chart illustrates December temperature patterns in Massena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Massena, December typically has an average temperature of -4°C (26°F), with highs reaching up to 16°C (62°F) and lows dropping to around -29°C (-20°F).
JanFebMarAprMayJunJulAugSepOctNovDec192130445766727062503525
Data source: Temperature data for Massena 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 Massena

In Massena in December, the precipitation amount is 85 mm (3.3 in) over a duration of 12 days.

December Precipitation Trends in Massena

The chart displays monthly precipitation patterns in Massena, 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 Massena, December typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec83838812011199118977213910585
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Massena

In Massena in December, humidity is 89%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that clings to your skin, making every step outdoors feel like traversing through a frosty fog.

December Average Humidity in Massena

This chart illustrates the average monthly humidity levels in Massena, 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 Massena is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Massena

In Massena 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 Massena, you can visit Hourly UV Index in Massena.

Maximum UV Index Levels in Massena for December

The chart shows the monthly maximum UV Index (UVI) for Massena 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 Massena typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Massena 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 Massena Compares to Other Months

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

This table compares monthly weather conditions in Massena, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)83 mm (3.3 inches)93%low
February Weather-6°C (22°F)83 mm (3.3 inches)93%moderate
March Weather-1°C (30°F)88 mm (3.5 inches)86%moderate
April Weather6°C (44°F)120 mm (4.7 inches)82%very high
May Weather14°C (57°F)110 mm (4.3 inches)75%very high
June Weather19°C (66°F)99 mm (3.9 inches)68%very high
July Weather22°C (72°F)118 mm (4.6 inches)69%very high
August Weather21°C (70°F)97 mm (3.8 inches)67%very high
September Weather17°C (62°F)72 mm (2.8 inches)72%high
October Weather10°C (51°F)139 mm (5.5 inches)83%moderate
November Weather2°C (36°F)105 mm (4.1 inches)88%moderate
December Weather-4°C (26°F)85 mm (3.3 inches)89%low

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