December Weather in Los Alamos, United States

Last updated: June 24, 2025

In December, the average temperature in Los Alamos, United States hovers around 12°C (54°F), with a minimum of 3°C (37°F) and a maximum reaching 26°C (78°F). Expect 65 mm (2.5 in) of precipitation spread over 5 days, accompanied by an average humidity level of 76%. Prepare for a mix of weather as you enjoy your time in this charming locale!

December Temperature in Los Alamos

In December in Los Alamos, the average temperature is 12°C (54°F). Maximum temperatures can reach 26°C (78°F), while minimums can drop to as low as 3°C (37°F). It's advisable to pack layers to stay comfortable during your travels.

December Weather in Los Alamos: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Los Alamos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Los Alamos, December typically has an average temperature of 12°C (54°F), with highs reaching up to 26°C (78°F) and lows dropping to around 3°C (37°F).

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

December Precipitation in Los Alamos

In Los Alamos in December, the total precipitation amount is 65 mm (2.5 in) over the course of 5 days.

December Precipitation Trends in Los Alamos

The chart displays monthly precipitation patterns in Los Alamos, 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 Los Alamos, December typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 5 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 Los Alamos

In Los Alamos in December, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.

December Average Humidity in Los Alamos

This chart illustrates the average monthly humidity levels in Los Alamos, 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 Los Alamos is approximately 76%, 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 Los Alamos

In Los Alamos 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 Los Alamos, you can check the information here.

Maximum UV Index Levels in Los Alamos for December

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

Data source: Los Alamos 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 Los Alamos Compares to Other Months

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

This table compares monthly weather conditions in Los Alamos, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	87 mm (3.4 inches)	80%	moderate
February Weather	12°C (53°F)	73 mm (2.9 inches)	83%	high
March Weather	12°C (55°F)	81 mm (3.2 inches)	80%	very high
April Weather	14°C (58°F)	21 mm (0.8 inches)	76%	very high
May Weather	15°C (60°F)	10 mm (0.4 inches)	75%	extreme
June Weather	18°C (65°F)	0 mm (0.0 inches)	74%	extreme
July Weather	20°C (68°F)	1 mm (0.0 inches)	75%	extreme
August Weather	20°C (68°F)	0 mm (0.0 inches)	72%	extreme
September Weather	19°C (67°F)	1 mm (0.0 inches)	70%	very high
October Weather	18°C (64°F)	8 mm (0.3 inches)	70%	high
November Weather	15°C (59°F)	26 mm (1.0 inches)	74%	moderate
December Weather	12°C (54°F)	65 mm (2.5 inches)	76%	moderate