Market Hotness: Hotness in Sonoma County, CA was 778.00000 Rank in January of 2026, according to the United States Federal Reserve. Historically, Market Hotness: Hotness in Sonoma County, CA reached a record high of 1364.00000 in August of 2021 and a record low of 9.00000 in February of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Market Hotness: Hotness in Sonoma County, CA - last updated from the United States Federal Reserve on April of 2026.