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December Weather in Hartland, Canada

Last updated: June 18, 2025

In December, the average temperature in Hartland, Canada hovers around -6°C (22°F), with extremes ranging from a chilling -24°C (-12°F) to a mild 15°C (59°F). Expect 114 mm (4.5 in) of precipitation spread over 10 days, contributing to a humid atmosphere with an average humidity of 90%.

December Temperature in Hartland

In December in Hartland, the average temperature is -6°C (22°F). The maximum can reach 15°C (59°F), while the minimum can drop as low as -24°C (-12°F). Travelers should prepare for a wide range of temperatures and pack accordingly for both cold and milder conditions.

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

The chart illustrates December temperature patterns in Hartland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartland, December typically has an average temperature of -6°C (22°F), with highs reaching up to 15°C (59°F) and lows dropping to around -24°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec161826395261676658463321
Data source: Temperature data for Hartland 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 Hartland

In Hartland in December, the precipitation amount is 114 mm (4.5 in) over a period of 10 days.

December Precipitation Trends in Hartland

The chart displays monthly precipitation patterns in Hartland, 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 Hartland, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec938178105107969885101115120114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hartland

In Hartland in December, humidity is 90%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm while navigating through the damp, frosty air.

December Average Humidity in Hartland

This chart illustrates the average monthly humidity levels in Hartland, 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 Hartland is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hartland

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

Maximum UV Index Levels in Hartland for December

The chart shows the monthly maximum UV Index (UVI) for Hartland 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 Hartland typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887532
Data source: Hartland 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 Hartland Compares to Other Months

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

This table compares monthly weather conditions in Hartland, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)93 mm (3.7 inches)93%low
February Weather-8°C (19°F)81 mm (3.2 inches)92%moderate
March Weather-3°C (26°F)78 mm (3.1 inches)90%moderate
April Weather4°C (40°F)105 mm (4.1 inches)87%high
May Weather11°C (52°F)107 mm (4.2 inches)82%very high
June Weather16°C (62°F)96 mm (3.8 inches)77%very high
July Weather19°C (67°F)98 mm (3.9 inches)81%very high
August Weather19°C (66°F)85 mm (3.3 inches)83%very high
September Weather14°C (58°F)101 mm (4.0 inches)85%high
October Weather8°C (47°F)115 mm (4.5 inches)87%moderate
November Weather0°C (33°F)120 mm (4.7 inches)87%moderate
December Weather-6°C (22°F)114 mm (4.5 inches)90%low

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