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Sonoma County, California, United States (38.51108 -122.84734)
Sonoma County, as is often the case with coastal counties in California, has a great degree of climatic variation and numerous, often very different, microclimates. Key determining factors for local climate are proximity to the ocean, elevation, and the presence and elevation of hills or mountains to the east and west. This is in large part due to the fact that, as throughout California, the prevailing weather systems and wind come normally from the Pacific Ocean, blowing in from the west and southwest so that places closer to the ocean and on the windward side of higher elevations tend to receive more rain from autumn through spring and more summer wind and fog. This itself is partly a result of the presence of high and low pressures in inland California, with persistent high summer temperatures in the Central Valley, in particular, leading to low pressures, drawing in moist air from the Pacific, cooling into damp cool breezes and fog over the cold coastal water. Those places further inland and particularly in the lee of significant elevations tend to receive less rain and less, in some cases no, fog in the summer.
Sorrento Valley, San Diego, San Diego County, California, 92121, United States (32.90014 -117.18945)
Coordinates: 32.88014 -117.20945 32.92014 -117.16945 - Minimum elevation: 8 m - Maximum elevation: 222 m - Average elevation: 95 m
La Cañada Flintridge, Los Angeles County, California, 91011-3243, United States (34.19983 -118.20052)
Coordinates: 34.17814 -118.23204 34.24324 -118.16891 - Minimum elevation: 265 m - Maximum elevation: 1,288 m - Average elevation: 525 m