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December Weather in Saint-Leonard-d'Aston, Canada

Last updated: June 18, 2025

In Saint-Leonard-d'Aston, Canada, the average temperature for December hovers around -5°C (23°F). During this time, temperatures can plunge as low as -28°C (-19°F) or rise to a maximum of 16°C (61°F). Expect approximately 92 mm (3.6 in) of precipitation over about 13 days, contributing to an average humidity of 85%. Stay warm and prepared for a chilly yet captivating month!

December Temperature in Saint-Leonard-d'Aston

In December in Saint-Leonard-d'Aston, the average temperature is -5°C (23°F). The maximum can reach 16°C (61°F), and the minimum can be as low as -28°C (-19°F). Be prepared for a wide range of temperatures and pack layers for your trip!

December Weather in Saint-Leonard-d'Aston: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint-Leonard-d'Aston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Leonard-d'Aston, December typically has an average temperature of -5°C (23°F), with highs reaching up to 16°C (61°F) and lows dropping to around -28°C (-19°F).
JanFebMarAprMayJunJulAugSepOctNovDec161927425564706860493322
Data source: Temperature data for Saint-Leonard-d'Aston 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 Saint-Leonard-d'Aston

In Saint-Leonard-d'Aston in December, the precipitation amount is 92 mm (3.6 in) spread over 13 days.

December Precipitation Trends in Saint-Leonard-d'Aston

The chart displays monthly precipitation patterns in Saint-Leonard-d'Aston, 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 Saint-Leonard-d'Aston, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8883871171051251101217313311992
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint-Leonard-d'Aston

In Saint-Leonard-d'Aston in December, humidity is 85%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that clings to your skin, making even the briefest outdoor excursions feel daunting and uncomfortable.

December Average Humidity in Saint-Leonard-d'Aston

This chart illustrates the average monthly humidity levels in Saint-Leonard-d'Aston, 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 Saint-Leonard-d'Aston is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint-Leonard-d'Aston

In Saint-Leonard-d'Aston 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 Saint-Leonard-d'Aston, you can visit Hourly UV Index in Saint-Leonard-d'Aston.

Maximum UV Index Levels in Saint-Leonard-d'Aston for December

The chart shows the monthly maximum UV Index (UVI) for Saint-Leonard-d'Aston 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 Saint-Leonard-d'Aston typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799887532
Data source: Saint-Leonard-d'Aston 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 Saint-Leonard-d'Aston Compares to Other Months

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

This table compares monthly weather conditions in Saint-Leonard-d'Aston, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)88 mm (3.5 inches)91%low
February Weather-7°C (19°F)83 mm (3.3 inches)89%moderate
March Weather-3°C (28°F)87 mm (3.4 inches)85%moderate
April Weather6°C (42°F)117 mm (4.6 inches)84%high
May Weather13°C (56°F)105 mm (4.1 inches)78%very high
June Weather18°C (65°F)125 mm (4.9 inches)72%very high
July Weather21°C (70°F)110 mm (4.3 inches)75%very high
August Weather20°C (68°F)120 mm (4.7 inches)74%very high
September Weather15°C (60°F)73 mm (2.9 inches)77%high
October Weather9°C (49°F)133 mm (5.2 inches)85%moderate
November Weather1°C (34°F)119 mm (4.7 inches)86%moderate
December Weather-5°C (23°F)92 mm (3.6 inches)85%low

Compare Saint-Leonard-d'Aston's Climate with Cities Worldwide