December Weather in Sandy Valley, United States

Last updated: June 24, 2025

In December, the average temperature in Sandy Valley, United States hovers around 7°C (46°F). Temperatures can dip to a chilly -4°C (25°F), while the mercury may rise to a pleasant 23°C (73°F). Expect approximately 17 mm (0.7 in) of precipitation spread over about 3 days, with an average humidity of 75%. Stay prepared for a mix of cool and mild days!

December Temperature in Sandy Valley

In December in Sandy Valley, the average temperature is 7°C (46°F). The maximum can reach 23°C (73°F), while the minimum can drop as low as -4°C (25°F). This wide temperature range suggests that travelers should pack layers to stay comfortable throughout the day and evening.

December Weather in Sandy Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sandy Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sandy Valley, December typically has an average temperature of 7°C (46°F), with highs reaching up to 23°C (73°F) and lows dropping to around -4°C (25°F).

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

December Precipitation in Sandy Valley

In Sandy Valley in December, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

December Precipitation Trends in Sandy Valley

The chart displays monthly precipitation patterns in Sandy Valley, 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 Sandy Valley, December typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 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 Sandy Valley

In Sandy Valley in December humidity is 75%. With an average temperature of 7°C (46°F), this humidity feels like a chilly dampness that clings to your skin, making every step outdoors feel heavier and the cold seep into your bones, which can be quite uncomfortable for traveling.

December Average Humidity in Sandy Valley

This chart illustrates the average monthly humidity levels in Sandy Valley, 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 Sandy Valley is approximately 75%, 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 Sandy Valley

In Sandy Valley 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 Sandy Valley for better planning.

Maximum UV Index Levels in Sandy Valley for December

The chart shows the monthly maximum UV Index (UVI) for Sandy Valley 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 Sandy Valley typically reaches 4, which falls under the moderate exposure category.

Data source: Sandy Valley 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 Sandy Valley Compares to Other Months

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

This table compares monthly weather conditions in Sandy Valley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	21 mm (0.8 inches)	76%	moderate
February Weather	9°C (49°F)	20 mm (0.8 inches)	80%	high
March Weather	13°C (56°F)	19 mm (0.7 inches)	69%	very high
April Weather	18°C (65°F)	10 mm (0.4 inches)	57%	very high
May Weather	22°C (72°F)	7 mm (0.3 inches)	45%	extreme
June Weather	29°C (85°F)	1 mm (0.0 inches)	34%	extreme
July Weather	32°C (90°F)	14 mm (0.6 inches)	29%	extreme
August Weather	32°C (89°F)	6 mm (0.2 inches)	28%	extreme
September Weather	27°C (81°F)	5 mm (0.2 inches)	41%	very high
October Weather	19°C (66°F)	2 mm (0.1 inches)	54%	high
November Weather	13°C (56°F)	11 mm (0.4 inches)	68%	moderate
December Weather	7°C (46°F)	17 mm (0.7 inches)	75%	moderate