Wine: The Impact of Geography and Climate 53
Table 3.1 Approximate Climate Zones Based on Heat
Summation Units*
Climate Zone
Heat Summation
Units Locations
Region 1 "2,500 F
("1,390 C)New World—North America
California:Anderson Valley, Carneros, Edna Valley,
Marin, Mendocino, Monterey, Napa (near the city),
Russian River Valley, Santa Clara, Santa Cruz
mountains, and parts of Sonoma
Canada:northern Okanagan Valley
Idaho:panhandle region, parts of Snake River Valley
Oregon:Willamette Valley, parts of Umpqua Valley
Washington:Puget Sound
New World—Other
Australia:Tasmania, Coonawarra, Piccadilly Valley
Chile:East Rapel Valley, West Aconcagua,
Casablanca Valley
New Zealand:Hawk’s Bay, Canterbury, Marlborough,
Cloudy Bay
Old World
France:Chablis, Loire, Coˆte d’Or, Champagne, Alsace
Germany:Mosel-Saar-Ruwer, Baden, Rheinhessen,
Rheingau, Platz
Switzerland:Valais, Geneva
Region 2 2,501 to 3,000 F
(1,391 to 1,670 C)New World—North America
California:Alexander Valley, Anderson Valley, Chalk
Hill, Edna Valley, Mendocino, Monterey, Napa Valley,
Potter Valley, Russian River Valley, Santa Clara, and
parts of Sonoma
Canada:Niagara Peninsula, southern Okanagan
Valley
Idaho:parts of Snake River Valley
New York:Finger Lakes, Lake Erie, Long Island,
Hudson Valley
Oregon:Western Umpqua Valley, Rogue Valley
Washington:Columbia Valley, Walla Walla Valley,
Yakima Valley
New World—Other
Argentina:Rio Negro Valley
Australia:Adelaide Hills, Barossa Valley, Pemberton,
Victoria
Chile:Maipo Valley, Curico ́ Valley, West Rapel, East
Aconcagua
South Africa:Stellenbosch, Walker Bay
Old World
France:Me ́doc, Hermitage
Hungary:Great Plain region
Italy:Piedmont, Tre Venezie
Spain:Penede`s, Galicia