The Eola-Amity Hills has around 2,400 acres (971 ha) of the area's 39,045 acres (15,801 ha) planted to grape vines.
Like most of the Willamette Valley, the Eola-Amity Hills experiences a maritime climate that includes mild winters but summers that are cooler and wetter than the continental climate experienced by Washington State's wine regions to the north and the Mediterranean climate experienced by many of California's wine regions to the south.
The climate is influenced by the Pacific currents that escape through the Van Duzer corridor gap between the Oregon Coastal Range and the Cascade range to the east which keeps many weather currents from going much further east.
Through the Van Duzer, cool Pacific air comes more than 30 miles from the west in the afternoon to cool down the region, allowing the grapes to retain higher levels of acidity.

The majority of the year's rainfall comes between October and April with the peak months of growing season being relatively dry.
However, harvest time in late September and October can bring the hazard of rain, grape rot and dilution caused by the vines absorbing too much water from the wet soils and funneling that into the grape berries.
Additionally, migrating birds heading south for the winter will often prey upon ripening grape clusters as a food source.

The vineyard soils of the Eola-Amity hills include volcanic soils and shallow nekia series over ancient basalt beds.
Throughout the AVA are soil deposits left over from the Missoula floods.
The Eola-Amity Hills has around 2,400 acres (971 ha) of the area's 39,045 acres (15,801 ha) planted to grape vines. Like most of the Willamette Valley, the Eola-Amity Hills experiences a maritime climate that includes mild winters but summers that are cooler and wetter than the continental climate experienced by Washington State's wine regions to the north and the Mediterranean climate experienced by many of California's wine regions to the south. The climate is influenced by the Pacific currents that escape through the Van Duzer corridor gap between the Oregon Coastal Range and the Cascade range to the east which keeps many weather currents from going much further east. Through the Van Duzer, cool Pacific air comes more than 30 miles from the west in the afternoon to cool down the region, allowing the grapes to retain higher levels of acidity.
The majority of the year's rainfall comes between October and April with the peak months of growing season being relatively dry. However, harvest time in late September and October can bring the hazard of rain, grape rot and dilution caused by the vines absorbing too much water from the wet soils and funneling that into the grape berries. Additionally, migrating birds heading south for the winter will often prey upon ripening grape clusters as a food source.
The vineyard soils of the Eola-Amity hills include volcanic soils and shallow nekia series over ancient basalt beds. Throughout the AVA are soil deposits left over from the Missoula floods.
Eola-Amity Hills AVA