December Weather in Sonora, United States

Last updated: June 24, 2025

In Sonora, United States, the average temperature in December hovers around 11°C (52°F). While daytime highs can reach a warm 29°C (84°F), nighttime lows can dip as low as -6°C (22°F). Expect a total precipitation of 27 mm (1.1 in) spread over 3 days, and with an average humidity of 85%, you'll want to prepare for a damp climate.

December Temperature in Sonora

In December in Sonora, the average temperature is 11°C (52°F), with a maximum reaching 29°C (84°F) and a minimum dropping as low as -6°C (22°F). Therefore, it's essential to pack for a range of weather conditions if you plan to travel during this time.

December Weather in Sonora: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sonora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sonora, December typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (84°F) and lows dropping to around -6°C (22°F).

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

December Precipitation in Sonora

In Sonora in December, the total precipitation amount is 27 mm (1.1 in) over the course of 3 days.

December Precipitation Trends in Sonora

The chart displays monthly precipitation patterns in Sonora, 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 Sonora, December typically receives around 27 mm (1.1 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 Sonora

In Sonora in December, humidity is 85%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel quite uncomfortable as the air feels heavy and can sap your energy.

December Average Humidity in Sonora

This chart illustrates the average monthly humidity levels in Sonora, 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 Sonora is approximately 85%, 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 Sonora

In Sonora in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Sonora.

Maximum UV Index Levels in Sonora for December

The chart shows the monthly maximum UV Index (UVI) for Sonora 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 Sonora typically reaches 5, which falls under the moderate exposure category.

Data source: Sonora 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 Sonora Compares to Other Months

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

This table compares monthly weather conditions in Sonora, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	25 mm (1.0 inches)	74%	moderate
February Weather	11°C (52°F)	31 mm (1.2 inches)	74%	very high
March Weather	16°C (62°F)	54 mm (2.1 inches)	68%	very high
April Weather	20°C (68°F)	48 mm (1.9 inches)	70%	extreme
May Weather	24°C (75°F)	103 mm (4.1 inches)	77%	extreme
June Weather	27°C (81°F)	47 mm (1.8 inches)	76%	extreme
July Weather	29°C (84°F)	19 mm (0.7 inches)	66%	extreme
August Weather	29°C (84°F)	35 mm (1.4 inches)	60%	extreme
September Weather	25°C (78°F)	67 mm (2.6 inches)	67%	extreme
October Weather	20°C (68°F)	76 mm (3.0 inches)	72%	very high
November Weather	14°C (58°F)	15 mm (0.6 inches)	83%	high
December Weather	11°C (52°F)	27 mm (1.1 inches)	85%	moderate