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Willamette Valley: Maps and Stats

Map resources

The hard part right now is finding current maps, since three new AVAs were recently added.

If you are REALLY into maps to hang on your wall, check this out: https://willamette-valley-wineries-association.myshopify.com

Here is a clean, general, and most importantly, current map of the AVAs … this is the one to use!

Willamette Wines interactive map

Statistics

THE WINKLER SCALE and growing degree days:

More info on the Winkler Scale: https://dracaenawines.com/pay-attention-winkler-scale/

(Here’s some info I copied from the Willamette Valley Wine website, with 2019 stats):

TOTAL GEOGRAPHIC AREA

Between Oregon’s Cascade Mountains and the Coast Range, more than 100 miles long and spanning 60 miles at its widest point. 3,438,000 acres.

MAJOR CITIES & POPULATIONS

Portland: 639,863
Salem: 161,637
Eugene: 160,561
Corvallis: 54,953
McMinnville: 33,393
Newberg: 22,692

Varieties by Acre 2019 Data

DISTANCE TO THE PACIFIC OCEAN

50 miles (McMinnville to Lincoln City)

TOTAL NUMBER OF:

Vineyard acres planted: 25,452
Vineyards: 877
Wineries: 676

FIRST PINOT NOIR PLANTING

David Lett, 1965

MAJOR SOILS

Marine Sedimentary: Willakenzie
Volcanic (Basalt): Jory, Nekia
Windblown Loess (Silts): Laurelwood

WILLAMETTE VALLEY % OF OREGON PRODUCTION

68% of planted vineyard acreage
70% of wine production
83% of Pinot noir production

REGION 1 COOL CLIMATE

Typical Summer/Winter Temperature
June-August high/low: 78.3/52.2ºF
December-February high/low: 47.6/35.1ºF

Typical Monthly Rainfall
June-August rainfall: 1.02″
December-February rainfall: 6.4″

Typical Annual Rainfall
Portland: 39 inches
McMinnville (wine country): 29 inches

Typical Rainfall
June-September total: 3.27″ (0.8″ per month)

Typical Growing Season Weather (McMinnville)
Typical Temperature
June-September high/low: 79/50ºF
June-September days > 80ºF: 60
June-September days > 90ºF: 18

Typical Heat Accumulation
April-October: 2,285 degree-days

Data from the 2019 Oregon Vineyard & Winery Census Report, University of Oregon
 

FARMING FOR QUALITY

VINE DENSITYLOWMEDIUMHIGH
vine spacing6′ x 12′5′ x 7′3′ x 6′
vines per acre6051,2452,420
row-feet per acre3,6306,2237,260
tons per acre2.02.52.8
gallons per ton150150150
gallons per barrel606060
barrels per ton2.52.52.5
gallons per case2.382.382.38
cases per barrel252525
cases per ton636363
cases per acre126158176
bottles per acre1,5131,8912,118
bottles per barrel300300300
bottles per vine2.51.5.9
pounds per vine6.64.02.3
pounds per cluster.2.2.2
clusters per vine332012
clusters per bottle131313