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College of Food, Agricultural, and Environmental Sciences

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Weather

Grape growing is primarily impacted by the environment and the weather is the driving force behind the vintage quality and vine survival each year.  The resources on this page will help you find out about the current weather conditions at the OSU weather stations across Ohio.  We have also added two useful tools for computing the heat units or Growing Degree Days (GDD) to estimate the warmth of the growing season, and the cooling units or chilling hours that are important for grapes to satisfy their dormancy cycle.  Historical data are also available online from OSU and national weather databases.  The most reliable resources of weather forecast are also listed for your convenience. 

 

OARDC Weather System
Growing Degree Days (GDD) Calculator
Chilling Hour Calculator
NEWA Weather System

USDA Plant Hardiness Map
Midwest Reional Climate Center (MCRR)
48 Hour Temperature Forecast Map
6-10 Day Temperature and Precipitation Outlooks
Frost and Freeze Outlooks