Sonoma County 1986 Vintage Report
Defining the 1986 vintage in Sonoma County requires looking beyond the averages, as it was a year of contrasting fortunes and precise timing.
The cycle began with a harmonious flowering period. Warm days (avg 20°C) allowed for an even fruit set, establishing the potential for a generous crop.
The growing season was solar and generous. Accumulating 1801 Growing Degree Days (GDD), the summer provided consistent warmth that drove steady sugar accumulation. A key factor was the dramatic diurnal shift (13.8°C), ensuring that despite the daytime warmth, acidities remained razor-sharp.
Harvest proceeded under mixed skies, requiring agility to dodge the 54mm of rain that fell sporadically during the picking weeks.
**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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