Sonoma County 1999 Vintage Report
Ideally sequenced and largely stress-free, 1999 goes down as a textbook vintage for Sonoma County.
The cycle began with a harmonious flowering period. Warm days (avg 18°C) allowed for an even fruit set, establishing the potential for a generous crop.
The growing season was solar and generous. Accumulating 1791 Growing Degree Days (GDD), the summer provided consistent warmth that drove steady sugar accumulation. A key factor was the dramatic diurnal shift (14.2°C), ensuring that despite the daytime warmth, acidities remained razor-sharp.
The season concluded with a pristine harvest window. With negligible rain (2mm), pickers could wait for perfect phenolic maturity, harvesting each block at its absolute zenith.
**Style:** Classically proportioned wines with good balance and terroir expression.
About Sonoma County
Napa's laid-back neighbor, Sonoma is a vast region of microclimates. It excels in cool-climate Pinot Noir and Chardonnay from the coast, as well as robust Zinfandels and Cabernets from its warmer valleys.
Climatic Blueprint
Growing Degree Days (GDD)
Total Rainfall
Sunshine Hours
Diurnal Shift
Frost Days
Average Temperature
Historical Context (10 Years)
Comparison of growing season heat accumulation vs regional average.
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