December Weather in Diamond Springs, United States

Last updated: June 24, 2025

In December, the average temperature in Diamond Springs, United States hovers around 7°C (45°F), with minimums dipping to -2°C (28°F) and maximums reaching up to 22°C (72°F). You'll likely experience 179 mm (7.1 in) of precipitation over approximately 10 days, coupled with a high average humidity of 83%. Be prepared for a wet, cool month!

December Temperature in Diamond Springs

In December in Diamond Springs, the average temperature is 7°C (45°F). Maximums can reach 22°C (72°F), and minimums can be as low as -2°C (28°F). This variation in temperature suggests that travelers should pack both warm and light clothing to stay comfortable during their visit.

December Weather in Diamond Springs: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Diamond Springs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Diamond Springs, December typically has an average temperature of 7°C (45°F), with highs reaching up to 22°C (72°F) and lows dropping to around -2°C (28°F).

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

December Precipitation in Diamond Springs

In Diamond Springs in December, the total precipitation amount is 179 mm (7.1 in) over the course of 10 days.

December Precipitation Trends in Diamond Springs

The chart displays monthly precipitation patterns in Diamond Springs, 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 Diamond Springs, December typically receives around 179 mm (7.1 inches) of precipitation spread over approximately 10 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 Diamond Springs

In Diamond Springs in December, humidity is 83%. With an average temperature of 7°C (45°F), this humidity feels like a chilly blanket wrapping around you, making travel somewhat uncomfortable as you navigate the dampness that settles in your clothes, leading to a heavy and muggy experience outdoors.

December Average Humidity in Diamond Springs

This chart illustrates the average monthly humidity levels in Diamond Springs, 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 Diamond Springs is approximately 83%, 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 Diamond Springs

In Diamond Springs 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 Diamond Springs, you can check the information here.

Maximum UV Index Levels in Diamond Springs for December

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

Data source: Diamond Springs 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 Diamond Springs Compares to Other Months

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

This table compares monthly weather conditions in Diamond Springs, 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 (46°F)	226 mm (8.9 inches)	84%	moderate
February Weather	8°C (47°F)	231 mm (9.1 inches)	84%	moderate
March Weather	9°C (49°F)	249 mm (9.8 inches)	83%	very high
April Weather	13°C (56°F)	115 mm (4.5 inches)	81%	very high
May Weather	16°C (62°F)	69 mm (2.7 inches)	74%	extreme
June Weather	22°C (72°F)	8 mm (0.3 inches)	64%	extreme
July Weather	26°C (78°F)	0 mm (0.0 inches)	44%	extreme
August Weather	25°C (77°F)	0 mm (0.0 inches)	36%	very high
September Weather	22°C (71°F)	15 mm (0.6 inches)	44%	very high
October Weather	16°C (61°F)	62 mm (2.4 inches)	65%	high
November Weather	11°C (52°F)	128 mm (5.0 inches)	84%	moderate
December Weather	7°C (45°F)	179 mm (7.1 inches)	83%	moderate