Los Angeles, December 12, 2025
Los Angeles recorded unusually warm temperatures on December 10, with highs reaching into the low to mid-80s Fahrenheit. The warm spell is expected to be short-lived, as a notable cooldown is forecasted to begin on December 11, bringing more typical December weather to the region. This fluctuation is influenced by a high-pressure ridge over the Western U.S., which has affected the seasonal norms for the area.
Los Angeles, CA
Los Angeles experienced unseasonably warm temperatures on Wednesday, December 10, 2025, with highs reaching into the low to mid-80s Fahrenheit. However, a significant cooldown is expected to begin Thursday, bringing more typical December weather to the region.
Warm Temperatures on December 10
On Wednesday, Los Angeles and Orange counties saw high temperatures of 85°F (29°C) and lows around 54°F (12°C). The valleys and Inland Empire experienced similar conditions, with highs of 86°F (30°C) and lows near 50°F (10°C). Coastal areas had slightly cooler temperatures, with highs around 73°F (23°C) and lows of 54°F (12°C). Mountain regions enjoyed sunny skies with highs of 64°F (18°C) and lows near 28°F (-2°C). These temperatures were significantly above the average for this time of year, which typically features highs around 64°F (18°C) and lows near 50°F (10°C).
Upcoming Cooldown
Starting Thursday, December 11, temperatures are forecasted to drop by several degrees, with a more substantial cooldown expected over the weekend and into Monday. This shift will bring temperatures closer to the seasonal averages, providing a respite from the recent warmth.
Background Context
December in Los Angeles is usually characterized by cooler temperatures, with average highs around 64°F (18°C) and lows near 50°F (10°C). The warm temperatures on December 10 were influenced by a high-pressure ridge over the Western U.S., which elevated temperatures well above seasonal norms. Such warm spells are not uncommon in Southern California, but they are typically short-lived, with cooler conditions returning as the high-pressure system moves eastward.
Key Features of the Recent Weather Event
| Feature | Details |
|---|---|
| Unseasonably Warm Temperatures | Highs in the low to mid-80s Fahrenheit on December 10, significantly above the typical December averages. |
| Upcoming Cooldown | Temperatures expected to drop starting Thursday, with a more substantial decrease over the weekend and into Monday. |
| Influencing Weather Pattern | A high-pressure ridge over the Western U.S. contributed to the elevated temperatures on December 10. |
Frequently Asked Questions (FAQ)
What were the temperatures in Los Angeles on December 10, 2025?
On December 10, Los Angeles and Orange counties experienced high temperatures of 85°F (29°C) and lows around 54°F (12°C). The valleys and Inland Empire had highs of 86°F (30°C) and lows near 50°F (10°C). Coastal areas saw highs around 73°F (23°C) and lows of 54°F (12°C). Mountain regions enjoyed sunny skies with highs of 64°F (18°C) and lows near 28°F (-2°C).
When is the cooldown expected to begin?
The cooldown is expected to start on Thursday, December 11, with temperatures dropping by several degrees. A more substantial decrease in temperatures is anticipated over the weekend and into Monday, bringing conditions closer to the seasonal averages.
What are the typical December temperatures in Los Angeles?
In December, Los Angeles typically experiences average high temperatures around 64°F (18°C) and lows near 50°F (10°C). The recent warmth on December 10 was significantly above these averages.
What caused the warm temperatures on December 10?
The warm temperatures were influenced by a high-pressure ridge over the Western U.S., which elevated temperatures well above seasonal norms. Such warm spells are not uncommon in Southern California but are typically short-lived.
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