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California's coastal regions, the Sierra Nevada foothills, and much of the Central Valley have a Mediterranean climate, with warmer, drier weather in summer and cooler, wetter weather in winter. The influence of the ocean generally moderates temperature extremes, creating warmer winters and substantially cooler summers in coastal areas.
The Santa Anas are katabatic winds (Greek for "flowing downhill") arising in higher altitudes and blowing down towards sea level. [7] The National Weather Service defines Santa Ana winds as "a weather condition [in southern California] in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions".
On rare occasion, temperatures can reach into the 85 to 95 °F (29 to 35 °C) range during Santa Ana Winds even in December or January. Sunny skies characteristically dominate the weather pattern in the winter season, mixed in with the occasional rain producing weather system.
The quiet weather that Californians enjoyed over the Christmas holiday has come to an end during the run-up to New Year's festivities this weekend, as a storm packed with moisture comes ashore ...
Increased rainfall is expected across much of California through the rest of December, with rains beginning as early as Sunday in the Los Angeles area.
Today's top weather news for Monday, Dec. 9, 2024: Portions of Southern California are seeing a "particularly dangerous" wildfire threat this week while millions in the Northeast and South will ...
Since the track of most hurricanes is well to the south of San Diego, and the cold California Current (normally sea temperatures are only in the upper 60's F off the CA coast) keeps ocean water significantly colder than in the Gulf of Mexico and western Atlantic (often sea temperatures over 82 F), tropical cyclones rarely impact San Diego. Most ...
The December 2014 North American storm complex was a powerful winter storm (referred to by some as California's "Storm of the Decade" [6] [7]) that impacted the West Coast of the United States, beginning on the night of December 10, 2014, resulting in snow, wind, and flood watches. [8]