Los Angeles Weather in December

The weather in December is usually the coldest all year for Los Angeles, California. But in reality, the day to day temperatures now feel pretty much the same as in the rest of winter. Throughout winter, Los Angeles enjoys mild weather.

This page gives detailed information on the typical December temperature, precipitation, sun, humidity, wind and storms for Los Angeles.

The temperature, rainfall, sunshine and wind speed numbers here are historical averages based on climate data gathered in downtown Los Angeles near Union Station. The humidity and thunderstorm measurements are averages at the Los Angeles International Airport, located southwest of the city center.

Temperature Weather iconTemperature

68 °F December average high 20 °C
48 °F December average low 9 °C

In most years, Los Angeles averages a daily maximum temperature for December that's between 65 and 70 degrees Fahrenheit (18 to 21 degrees Celsius). The minimum temperature usually falls between 46 and 49 °F (8 to 10 °C).

December is the coldest month overall for Los Angeles and the 21st to 23rd are its chilliest days. They have daily highs averaging 67.3 °F (19.6 °C) and lows of 47.1 °F (8.4 °C).

11 days 70 °F max. or more (21 °C)
21 days 50 °F min. or less (10 °C)

Most days in November warm to over 60 °F (16 °C) in Los Angeles. Los Angeles averages one or two days in December when the thermometer reaches into the 80s °F (over 27 °C). Temperatures above 90 °F (32 °C) are not expected here this month.

The thermometer dips to 40 °F (4 °C) or below on an average of 2 nights. But December does not normally get cold enough for frost.

Rainy Weather iconRain

2.3 in total precipitation 59 mm
5 days of rain

Half the time, Los Angeles receives 0.5 to 3 inches (14 to 82 mm) of rainfall in December. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

71 % sunshine
15 days clear skies

The sun's rays reach the ground in Los Angeles during 71 percent of daylight hours on average in December, for a total of 219 hours in the month. Typically on 15 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in December at Los Angeles averages 9 hours and 55 minutes a day. The shortest days of the year, from around December 17th to 24th, last 9 hours and 53 minutes from sunrise to sunset.

Humid Weather iconHumidity

63 % December average humidity

The relative humidity in Los Angeles during December usually peaks at 69 percent in the evening or morning then drops to 49 percent by early afternoon. This is the least humid month for Los Angeles.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 68 69 67 53 49 60 69 68

Windy Weather iconWind

4.9 mph December wind speed average 7.9 kph

December is an average month in Los Angeles for wind speed.

Stormy Weather iconStorms

2 days rainfall of 0.5 inches (13 mm) or more
0 days with thunderstorms in December

Los Angeles has a December thunderstorm every few years.


These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals.

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