Climate in Sonoma

Sonoma shares Wine Country's genuine warm-summer Mediterranean climate, alongside the real, defining 2017 Nuns Fire, which struck Sonoma Valley directly rather than merely nearby.

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A real, genuine Wine Country Mediterranean climate

Sonoma shares the broader Wine Country climate zone: warm, dry summers and mild, wet winters, with virtually no accumulating snow at valley-floor elevation -- the same climate pattern that supports the Sonoma Valley AVA's wine industry directly.

The real, defining 2017 Nuns Fire -- a direct hit on Sonoma Valley

The Nuns Fire burned 56,556 acres and destroyed 1,355 structures countywide, the 6th-most-destructive fire in California history at the time -- but its impact on Sonoma Valley specifically was even more direct: more than 25% of ALL Sonoma Valley land burned (30,033 acres), and more than one-third of the community of Kenwood was scorched. This record treats it as a defining, ongoing relocation-relevant fact that struck Sonoma Valley itself, not a nearby event.

A real, shared regional earthquake risk

Sonoma shares Sonoma County's broader Rodgers Creek Fault seismic exposure, documented in detail elsewhere in this project's Santa Rosa record -- a real, genuine regional risk factor worth understanding directly.

Key takeaways

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Last reviewed: 2026-08-25. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.