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December Weather in Petawawa, Canada

Last updated: June 18, 2025

In Petawawa, Canada, the average temperature in December hovers around -7°C (20°F), with the minimum dipping as low as -31°C (-23°F) and the maximum reaching up to 13°C (55°F). Expect about 80 mm (3.1 in) of precipitation spread over 11 days, while the average humidity remains high at 89%. Prepare for a chilly and damp month!

December Temperature in Petawawa

In December in Petawawa, the average temperature is -7°C (20°F). Maximums can reach 13°C (55°F), while minimums can drop to as low as -31°C (-23°F). Be prepared for extreme temperature variations if you're traveling during this time.

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

The chart illustrates December temperature patterns in Petawawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petawawa, December typically has an average temperature of -7°C (20°F), with highs reaching up to 13°C (55°F) and lows dropping to around -31°C (-23°F).
JanFebMarAprMayJunJulAugSepOctNovDec141625385363706758473220
Data source: Temperature data for Petawawa 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 Petawawa

In Petawawa in December, the precipitation amount is 80 mm (3.1 in) spread over a duration of 11 days.

December Precipitation Trends in Petawawa

The chart displays monthly precipitation patterns in Petawawa, 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 Petawawa, December typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec637471105112102103106971078680
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Petawawa

In Petawawa in December humidity is 89%. With an average temperature of -7°C (20°F), this humidity feels like a biting chill that seeps into your bones, making travel quite uncomfortable as you navigate the frosty air that clings to every breath.

December Average Humidity in Petawawa

This chart illustrates the average monthly humidity levels in Petawawa, 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 Petawawa 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 Petawawa

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

Maximum UV Index Levels in Petawawa for December

The chart shows the monthly maximum UV Index (UVI) for Petawawa 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 Petawawa typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799987532
Data source: Petawawa 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 Petawawa Compares to Other Months

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

This table compares monthly weather conditions in Petawawa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)63 mm (2.5 inches)93%low
February Weather-9°C (17°F)74 mm (2.9 inches)93%moderate
March Weather-4°C (25°F)71 mm (2.8 inches)86%moderate
April Weather4°C (39°F)105 mm (4.1 inches)82%high
May Weather11°C (53°F)111 mm (4.4 inches)75%very high
June Weather17°C (63°F)102 mm (4.0 inches)68%very high
July Weather21°C (70°F)103 mm (4.0 inches)69%very high
August Weather19°C (67°F)106 mm (4.2 inches)67%very high
September Weather15°C (59°F)97 mm (3.8 inches)72%high
October Weather8°C (47°F)106 mm (4.2 inches)83%moderate
November Weather0°C (32°F)86 mm (3.4 inches)88%moderate
December Weather-7°C (20°F)80 mm (3.1 inches)89%low

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