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Climate: Past and Present Trends for the Napa Valley
Historical climate data can give insight on current and future trends for phenological events such as bud break, flowering and veraison. In addition, through historical climate trends we can predict times of targeted pest development, emergence, and applications for sprays.
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Here we present weather station data from St. Helena and Oakville, CA which have been collecting data such as temperature and precipitation since 1951 and 1989, respectively.
Vineyard in Napa County Video: S. Vengco
GDD
Temperature
Precipitation
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