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December Weather in Vernon, United States

Last updated: June 24, 2025

In December, the average temperature in Vernon, United States hovers around 8°C (47°F). While it can drop to a chilly -7°C (20°F), the mercury can also climb up to a warm 30°C (86°F). Expect some rain, with 27 mm (1.0 in) of precipitation spread over 3 days, contributing to the region's high average humidity of 84%.

December Temperature in Vernon

In December in Vernon, the average temperature is 8°C (47°F). Maximum temperatures can reach up to 30°C (86°F), while minimums can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures when traveling 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 8°C (47°F), with highs reaching up to 30°C (86°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec424457637382868477645346
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 precipitation amount is 27 mm (1.0 in) over the course of 3 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 27 mm (1.0 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec3328649911363234292662327
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 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%70%72%82%82%80%72%64%71%81%84%
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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110854
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 Weather6°C (42°F)33 mm (1.3 inches)76%moderate
February Weather7°C (44°F)28 mm (1.1 inches)76%high
March Weather14°C (57°F)64 mm (2.5 inches)70%very high
April Weather17°C (63°F)99 mm (3.9 inches)72%very high
May Weather23°C (73°F)113 mm (4.5 inches)82%extreme
June Weather28°C (82°F)63 mm (2.5 inches)82%extreme
July Weather30°C (86°F)22 mm (0.9 inches)80%extreme
August Weather29°C (84°F)42 mm (1.7 inches)72%extreme
September Weather25°C (77°F)92 mm (3.6 inches)64%very high
October Weather18°C (65°F)66 mm (2.6 inches)71%very high
November Weather12°C (53°F)23 mm (0.9 inches)81%moderate
December Weather8°C (47°F)27 mm (1.0 inches)84%moderate

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