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December Weather in Hawkesbury, Canada

Last updated: June 18, 2025

In December, the average temperature in Hawkesbury, Canada hovers around -5°C (23°F). However, temperatures can plummet to a chilling -28°C (-19°F) at their lowest, while the warmest days can reach up to 14°C (58°F). Expect about 90 mm (3.5 in) of precipitation spread over 11 days, alongside an average humidity level of 89%, creating a notably damp atmosphere.

December Temperature in Hawkesbury

In December in Hawkesbury, the average temperature is -5°C (23°F), with maximums reaching up to 14°C (58°F) and minimums dipping as low as -28°C (-19°F). Travelers should prepare for a wide range of temperatures, making it essential to pack both warm and surprisingly mild clothing options.

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

The chart illustrates December temperature patterns in Hawkesbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hawkesbury, December typically has an average temperature of -5°C (23°F), with highs reaching up to 14°C (58°F) and lows dropping to around -28°C (-19°F).
JanFebMarAprMayJunJulAugSepOctNovDec161928425665706860493322
Data source: Temperature data for Hawkesbury 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 Hawkesbury

In Hawkesbury in December, the total precipitation amounts to 90 mm (3.5 in) over the course of 11 days.

December Precipitation Trends in Hawkesbury

The chart displays monthly precipitation patterns in Hawkesbury, 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 Hawkesbury, December typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8590931191131111281118613510990
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hawkesbury

In Hawkesbury in December, humidity is 89%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and prompting frequent breaks to warm up indoors.

December Average Humidity in Hawkesbury

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

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

Maximum UV Index Levels in Hawkesbury for December

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

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

This table compares monthly weather conditions in Hawkesbury, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)85 mm (3.4 inches)93%low
February Weather-7°C (19°F)90 mm (3.5 inches)92%moderate
March Weather-2°C (28°F)93 mm (3.7 inches)86%moderate
April Weather6°C (42°F)119 mm (4.7 inches)85%high
May Weather13°C (56°F)113 mm (4.4 inches)80%very high
June Weather18°C (65°F)110 mm (4.4 inches)74%very high
July Weather21°C (71°F)128 mm (5.1 inches)76%very high
August Weather20°C (68°F)111 mm (4.4 inches)75%very high
September Weather16°C (60°F)86 mm (3.4 inches)78%high
October Weather9°C (49°F)135 mm (5.3 inches)86%moderate
November Weather1°C (33°F)109 mm (4.3 inches)88%moderate
December Weather-5°C (23°F)90 mm (3.5 inches)89%low

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