USA

Sonoma County

1979
99Grapeyear
legendary Configuration

Sonoma County 1979 Vintage Report

Ideally sequenced and largely stress-free, 1979 goes down as a textbook vintage for Sonoma County.

The cycle began with a harmonious flowering period. Warm days (avg 21°C) allowed for an even fruit set, establishing the potential for a generous crop.

The growing season was solar and generous. Accumulating 1918 Growing Degree Days (GDD), the summer provided consistent warmth that drove steady sugar accumulation. A key factor was the dramatic diurnal shift (13.7°C), ensuring that despite the daytime warmth, acidities remained razor-sharp.

Harvest proceeded under mixed skies, requiring agility to dodge the 22mm of rain that fell sporadically during the picking weeks.

**Style:** Rich, opulent, and structured wines built for the long haul.

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)

1918

Total Rainfall

158 mm

Sunshine Hours

2549 hrs

Diurnal Shift

13.7 °C

Frost Days

0 days

Average Temperature

19 °C

Historical Context (10 Years)

Comparison of growing season heat accumulation vs regional average.

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