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December Weather in Vernon, United States

Last updated: June 24, 2025

In December, the average temperature in Vernon, United States is a mild 13°C (56°F). However, temperatures can vary significantly, with a minimum of -4°C (26°F) and a maximum soaring to 27°C (80°F). Expect some rain, as precipitation averages 142 mm (5.6 in) over 10 days, contributing to a high average humidity of 86%.

December Temperature in Vernon

In December in Vernon, the average temperature is 13°C (56°F). The maximum can reach 27°C (80°F), and the minimum can drop as low as -4°C (26°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 13°C (56°F), with highs reaching up to 27°C (80°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec535963677580818179736056
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 142 mm (5.6 in) over the course of 10 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 142 mm (5.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec91126611321101992122401789743142
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 86%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or air-conditioned spaces frequently.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec589101111121110864
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 Weather12°C (53°F)91 mm (3.6 inches)83%moderate
February Weather15°C (60°F)126 mm (4.9 inches)82%very high
March Weather17°C (63°F)61 mm (2.4 inches)79%very high
April Weather20°C (68°F)132 mm (5.2 inches)77%very high
May Weather24°C (75°F)110 mm (4.3 inches)74%extreme
June Weather27°C (80°F)199 mm (7.8 inches)70%extreme
July Weather27°C (81°F)212 mm (8.3 inches)78%extreme
August Weather27°C (81°F)240 mm (9.4 inches)78%extreme
September Weather26°C (79°F)178 mm (7.0 inches)79%very high
October Weather23°C (73°F)97 mm (3.8 inches)74%very high
November Weather16°C (60°F)43 mm (1.7 inches)83%high
December Weather13°C (56°F)142 mm (5.6 inches)86%moderate

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