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Cool Weather Delays Russian River Chardonnay Harvest | A 2016 Growing Season Report

2016 Russian River Valley Chardonnay grapes on the vine.

Hurry up and wait.

August is the final mile of the marathon for cool-climate grapes like Chardonnay, and it’s usually the month with the hottest days, pushing the grapes to full ripeness before harvest. Usually.

Cool temperatures and misty fog have lingered well into late morning most days this month. Highs have stayed in the upper 70s and low 80s—about 10 degrees below average. This has allowed our Chardonnay grapes to continue a slow ripening process on the vines without the threat of excessive heat, which can sunburn their delicate skins. If the cold weather holds, as predicted, we may harvest one block of our earliest ripening Russian River Chardonnay late next week and pause for at least another week before harvest 2016 kicks into full gear. Last year, Chardonnay harvest began on August 24.

Augusts like this are exactly what the grapes need. There’s been just enough sunshine, but without intense heat that radiates through the long days this time of year. Clusters can ripen slowly, developing more complex flavors. The key is ensuring the Chardonnay grapes reach full maturity before the typical fall rains, which often arrive between late September and mid-October.

So far, Chardonnay looks very good. I wish there was more fruit on the vines, but the ripening clusters are uniform in berry size and showing intense apple flavors. Throughout our five grower vineyards, I’ve noticed very little sunburn, which will help preserve the brightness of flavors once the grapes arrive at the press.

Chardonnay yields are almost average—more clusters on the vines than in the minuscule 2015 vintage, but a lot less fruit than in 2012 and 2013.

The calm, cool August has allowed us to ample time to focus on getting the crushpad equipment, fermentation room and barrel cellar ready for harvest. I was beginning to worry that August harvests would become a regular occurrence with global warming, and we have gladly welcomed the return of a September Blessing of the Grapes ceremony to commence crush. It just means we winemakers (and grapegrowers) have to be more patient this month. We sample clusters. We test sugars. And then, we wait. Mother Nature is in the driver’s seat.

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Rob Davis

Winemaker since Jordan's first vintage in 1976. Rob takes advantage of our estate's hillside trails for triathlon training.

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