When the fog rolls off the ocean and into the Napa Valley, the weather
on Howell Mountain is generally sunny and cool. The appellation
owes its distinctive climate to the fact that it is positioned well
above the valley floor. Because of its altitude, generally, evening
temperatures are warmer and daytime temperatures are much cooler—leveling
out spikes in heat that tend to be more exaggerated at lower elevations.
Although it gets nearly twice as much rainfall as the valley below,
the soil tends to be dry, because rocky, porous soil conditions
allow for adequate drainage and less accumulation. Seasonally, cooler
spring temperatures cause buds to break later than average, and
warm summer nights produce fruit that demonstrates a great balance
between acidity and sugar. All of which, translates into a rich
diversity of complexity and flavor in your glass.