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December Weather in Mascouche, Canada

Last updated: June 18, 2025

In Mascouche, Canada, the average temperature for December hovers around -5°C (22°F). During this month, temperatures can dip as low as -26°C (-15°F), while occasionally peaking at a milder 14°C (57°F). Expect about 89 mm (3.5 in) of precipitation over 11 days, and prepare for a moist atmosphere with an average humidity of 89%.

December Temperature in Mascouche

In December in Mascouche, the average temperature is -5°C (22°F). Maximum temperatures can reach 14°C (57°F), while the minimum can drop as low as -26°C (-15°F). Be prepared for a wide range of temperatures when planning your trip!

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

The chart illustrates December temperature patterns in Mascouche, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mascouche, December typically has an average temperature of -5°C (22°F), with highs reaching up to 14°C (57°F) and lows dropping to around -26°C (-15°F).
JanFebMarAprMayJunJulAugSepOctNovDec161928425766726961493422
Data source: Temperature data for Mascouche 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 Mascouche

In Mascouche in December, the precipitation amount is 89 mm (3.5 in) over a span of 11 days.

December Precipitation Trends in Mascouche

The chart displays monthly precipitation patterns in Mascouche, 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 Mascouche, December typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8382841229696911016912911589
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mascouche

In Mascouche in December humidity is 89%. With an average temperature of -5°C (22°F), this humidity feels like an unexpected chill that seeps into your bones, making travel outside a frosty challenge where each breath forms a small cloud in the air.

December Average Humidity in Mascouche

This chart illustrates the average monthly humidity levels in Mascouche, 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 Mascouche is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mascouche

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

Maximum UV Index Levels in Mascouche for December

The chart shows the monthly maximum UV Index (UVI) for Mascouche 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 Mascouche typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Mascouche 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 Mascouche Compares to Other Months

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

This table compares monthly weather conditions in Mascouche, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)83 mm (3.3 inches)93%low
February Weather-7°C (19°F)82 mm (3.2 inches)92%moderate
March Weather-2°C (28°F)84 mm (3.3 inches)86%moderate
April Weather6°C (43°F)122 mm (4.8 inches)85%high
May Weather14°C (57°F)96 mm (3.8 inches)80%very high
June Weather19°C (66°F)96 mm (3.8 inches)74%very high
July Weather22°C (72°F)91 mm (3.6 inches)76%very high
August Weather21°C (70°F)101 mm (4.0 inches)75%very high
September Weather16°C (61°F)69 mm (2.7 inches)78%high
October Weather10°C (49°F)129 mm (5.1 inches)86%moderate
November Weather1°C (34°F)115 mm (4.5 inches)88%moderate
December Weather-5°C (22°F)89 mm (3.5 inches)89%low

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