(NVR) - Grapegrowers are celebrating cool temperatures that are leading to a slow, even ripening process in Napa Valley vineyards.

Jennifer Rue of Oakville Ranch Vineyards referred to “Goldilocks days” that are “perfect for field work.”

A streak of unusually early harvests seems to have ended this year, with this year’s harvest one or two weeks behind the pace of last year’s.

“The cooler weather in the last week of August has been called everything from blissfully normal to perfect,” writes Dawnine Dyer of Dyer Vineyards. “Whatever you call it, it’s been great for the vineyards on Diamond Mountain, extending the season and building desirable flavors and tannins … so far so good.”