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December Weather in Merritt, Canada

Last updated: June 18, 2025

In Merritt, Canada, the average temperature in December hovers around -4°C (25°F), with extremes ranging from a biting -36°C (-33°F) to a milder 8°C (47°F). Expect 92 mm (3.6 in) of precipitation over 14 days, contributing to a notably high average humidity of 89%. Bundle up and prepare for a chilly but captivating month!

December Temperature in Merritt

In December in Merritt, the average temperature is -4°C (25°F), with maximums reaching 8°C (47°F) and minimums dropping as low as -36°C (-33°F). It’s important to prepare for very cold conditions if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Merritt, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merritt, December typically has an average temperature of -4°C (25°F), with highs reaching up to 8°C (47°F) and lows dropping to around -36°C (-33°F).
JanFebMarAprMayJunJulAugSepOctNovDec252132394954616052393225
Data source: Temperature data for Merritt 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 Merritt

In Merritt in December, the precipitation amount is 92 mm (3.6 in) over the course of 14 days.

December Precipitation Trends in Merritt

The chart displays monthly precipitation patterns in Merritt, 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 Merritt, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec7471545041402119507611192
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Merritt

In Merritt in December humidity is 89%. With an average temperature of -4°C (25°F), this humidity feels like an intense chill that seeps into your bones, making traveling uncomfortable as you navigate through the damp, cold air.

December Average Humidity in Merritt

This chart illustrates the average monthly humidity levels in Merritt, 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 Merritt is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%88%86%82%82%85%77%76%88%88%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Merritt

In Merritt 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 Merritt.

Maximum UV Index Levels in Merritt for December

The chart shows the monthly maximum UV Index (UVI) for Merritt 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 Merritt typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987421
Data source: Merritt 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 Merritt Compares to Other Months

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

This table compares monthly weather conditions in Merritt, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)74 mm (2.9 inches)87%low
February Weather-6°C (22°F)71 mm (2.8 inches)86%moderate
March Weather0°C (32°F)54 mm (2.1 inches)88%moderate
April Weather4°C (39°F)50 mm (2.0 inches)86%high
May Weather9°C (49°F)41 mm (1.6 inches)82%very high
June Weather12°C (55°F)40 mm (1.6 inches)82%very high
July Weather16°C (61°F)21 mm (0.8 inches)85%very high
August Weather16°C (61°F)19 mm (0.8 inches)77%very high
September Weather11°C (52°F)50 mm (2.0 inches)76%high
October Weather4°C (39°F)76 mm (3.0 inches)88%moderate
November Weather0°C (32°F)111 mm (4.4 inches)88%low
December Weather-4°C (25°F)92 mm (3.6 inches)89%low

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