Overall, the 2020 growing season (April-October) was modestly warmer (+1.9 degrees) than the long-term average while precipitation was below average (-2.9 inches).
Spring experienced swings in temperature with early season heat followed by cool, wet conditions before and during flowering in early June. As a consequence, fruit set resulted in smaller clusters and berries and yields substantially lower than the prior seven years.
2020 in the North Willamette Valley, and elsewhere, will be most remembered for a smoke event occurring around Labor Day. This event was precipitated by an extremely rare, strong easterly wind, stoking wildfires and smoke in northwestern Oregon including the Willamette Valley which persisted over a 10-day period.
Knudsen Vineyards produced a single wine from the 2020 growing season, a 2020 Rosé from estate grapes unaffected by the smoke event.