December Weather in Seven Valleys, United States

Last updated: June 24, 2025

In December, the average temperature in Seven Valleys, United States hovers around 3°C (38°F), with lows dipping to a chilly -12°C (10°F) and highs reaching a mild 18°C (64°F). Expect 93 mm (3.6 in) of precipitation spread over 9 days, and prepare for a fairly humid atmosphere with an average humidity of 84%.

December Temperature in Seven Valleys

In December in Seven Valleys, the average temperature is 3°C (38°F), with maximums reaching up to 18°C (64°F) and minimums dropping as low as -12°C (10°F). Travelers should prepare for a wide range of temperatures and pack accordingly to enjoy their visit comfortably.

December Weather in Seven Valleys: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Seven Valleys, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seven Valleys, December typically has an average temperature of 3°C (38°F), with highs reaching up to 18°C (64°F) and lows dropping to around -12°C (10°F).

Data source: Temperature data for Seven Valleys generated using information from the Copernicus Climate Change Service.

December Precipitation in Seven Valleys

In Seven Valleys in December, the precipitation amount is 93 mm (3.6 in) during a span of 9 days.

December Precipitation Trends in Seven Valleys

The chart displays monthly precipitation patterns in Seven Valleys, 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 Seven Valleys, December typically receives around 93 mm (3.6 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Seven Valleys

In Seven Valleys in December, humidity is 84%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as the cold air clings to you and the moisture creates an oppressive heaviness in the atmosphere.

December Average Humidity in Seven Valleys

This chart illustrates the average monthly humidity levels in Seven Valleys, 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 Seven Valleys is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Seven Valleys

In Seven Valleys in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Seven Valleys, you can check the information here.

Maximum UV Index Levels in Seven Valleys for December

The chart shows the monthly maximum UV Index (UVI) for Seven Valleys 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 Seven Valleys typically reaches 3, which falls under the moderate exposure category.

Data source: Seven Valleys 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 Seven Valleys Compares to Other Months

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

This table compares monthly weather conditions in Seven Valleys, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	60 mm (2.4 inches)	84%	moderate
February Weather	3°C (38°F)	97 mm (3.8 inches)	83%	moderate
March Weather	6°C (44°F)	96 mm (3.8 inches)	83%	high
April Weather	12°C (54°F)	100 mm (4.0 inches)	81%	very high
May Weather	18°C (64°F)	139 mm (5.5 inches)	78%	very high
June Weather	22°C (73°F)	115 mm (4.5 inches)	79%	very high
July Weather	25°C (78°F)	145 mm (5.7 inches)	74%	very high
August Weather	24°C (75°F)	148 mm (5.8 inches)	72%	very high
September Weather	21°C (69°F)	123 mm (4.9 inches)	75%	very high
October Weather	15°C (60°F)	103 mm (4.1 inches)	81%	high
November Weather	7°C (45°F)	90 mm (3.6 inches)	85%	moderate
December Weather	3°C (38°F)	93 mm (3.6 inches)	84%	moderate