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December Weather in Stony Plain, Canada

Last updated: June 18, 2025

The average temperature in Stony Plain, Canada during December hovers around -9°C (17°F). Temperatures can vary dramatically, with a minimum of -38°C (-37°F) and a maximum of 8°C (48°F). Prepare for some moisture, as precipitation averages 21 mm (0.8 in) over 6 days. Plus, enjoy the crisp air with an average humidity of 91%!

December Temperature in Stony Plain

In December in Stony Plain, the average temperature is -9°C (17°F). The maximum can reach 8°C (48°F) and the minimum can be as low as -38°C (-37°F). Travelers should be prepared for extremely cold conditions and pack accordingly.

December Weather in Stony Plain: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Stony Plain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stony Plain, December typically has an average temperature of -9°C (17°F), with highs reaching up to 8°C (48°F) and lows dropping to around -38°C (-37°F).
JanFebMarAprMayJunJulAugSepOctNovDec141024365259636050382416
Data source: Temperature data for Stony Plain 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 Stony Plain

In Stony Plain in December, the total precipitation amount is 21 mm (0.8 in), occurring over a span of 6 days.

December Precipitation Trends in Stony Plain

The chart displays monthly precipitation patterns in Stony Plain, 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 Stony Plain, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec18212731621011096152273921
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Stony Plain

In Stony Plain in December humidity is 91%. With an average temperature of -9°C (17°F), this humidity feels like an Arctic chill that clings to your skin, making travel uncomfortable as you battle the biting cold that seeps into your bones.

December Average Humidity in Stony Plain

This chart illustrates the average monthly humidity levels in Stony Plain, 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 Stony Plain is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%87%81%77%77%81%78%73%78%82%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Stony Plain

In Stony Plain in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Stony Plain.

Maximum UV Index Levels in Stony Plain for December

The chart shows the monthly maximum UV Index (UVI) for Stony Plain 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 Stony Plain typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec134577876421
Data source: Stony Plain 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 Stony Plain Compares to Other Months

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

This table compares monthly weather conditions in Stony Plain, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)18 mm (0.7 inches)90%low
February Weather-12°C (11°F)21 mm (0.8 inches)92%moderate
March Weather-4°C (24°F)27 mm (1.0 inches)87%moderate
April Weather2°C (36°F)31 mm (1.2 inches)81%moderate
May Weather11°C (52°F)62 mm (2.4 inches)77%high
June Weather15°C (60°F)101 mm (4.0 inches)77%high
July Weather17°C (63°F)109 mm (4.3 inches)81%very high
August Weather16°C (61°F)61 mm (2.4 inches)78%high
September Weather10°C (51°F)52 mm (2.1 inches)73%high
October Weather3°C (38°F)27 mm (1.0 inches)78%moderate
November Weather-4°C (24°F)39 mm (1.5 inches)82%low
December Weather-9°C (17°F)21 mm (0.8 inches)91%low

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