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December Weather in Vernon, United States

Last updated: June 24, 2025

The average temperature in Vernon, United States during December hovers around 10°C (50°F). Expect a wide range with minimums dipping to -5°C (22°F) and maximums soaring to 24°C (76°F). Be prepared for some rain, as 150 mm (5.9 in) of precipitation can be expected over 12 days. With an average humidity of 88%, it’s essential to plan for a damp and chilly atmosphere!

December Temperature in Vernon

In December in Vernon, the average temperature is 10°C (50°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop to as low as -5°C (22°F). Be prepared for a wide range of weather if you plan to travel during this month.

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

The chart illustrates December temperature patterns in Vernon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vernon, December typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (76°F) and lows dropping to around -5°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec465158637278818077675349
Data source: Temperature data for Vernon 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 Vernon

In Vernon in December, the total precipitation amount is 150 mm (5.9 in) over the course of 12 days.

December Precipitation Trends in Vernon

The chart displays monthly precipitation patterns in Vernon, 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 Vernon, December typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec124186175171128150991309510473150
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Vernon

In Vernon in December, humidity is 88%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and encouraging travelers to seek cozy indoor activities instead.

December Average Humidity in Vernon

This chart illustrates the average monthly humidity levels in Vernon, 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 Vernon is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Vernon

In Vernon in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Vernon for better planning.

Maximum UV Index Levels in Vernon for December

The chart shows the monthly maximum UV Index (UVI) for Vernon 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 Vernon typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119764
Data source: Vernon 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 Vernon Compares to Other Months

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

This table compares monthly weather conditions in Vernon, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)124 mm (4.9 inches)85%moderate
February Weather11°C (51°F)186 mm (7.3 inches)84%high
March Weather14°C (58°F)175 mm (6.9 inches)82%very high
April Weather17°C (63°F)171 mm (6.7 inches)82%very high
May Weather22°C (73°F)128 mm (5.0 inches)82%extreme
June Weather25°C (78°F)150 mm (5.9 inches)79%extreme
July Weather27°C (81°F)99 mm (3.9 inches)82%extreme
August Weather27°C (81°F)130 mm (5.1 inches)77%extreme
September Weather25°C (77°F)95 mm (3.7 inches)74%very high
October Weather19°C (67°F)104 mm (4.1 inches)73%high
November Weather11°C (53°F)73 mm (2.9 inches)85%high
December Weather10°C (50°F)150 mm (5.9 inches)88%moderate

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