Growing Degree Day

Growing Degree Days The number of degrees that the average temperature is above a baseline value. For example, 40°F for canning purposes; 45°F for potatoes; and 50°F for sweet corn, snap beans, lima beans, tomatoes, grapes, and field corn.

Growing Degree Days - A heat index that relates the development of plants, insects, and disease organisms to environmental air temperature. The index varies depending on whether it is a cool, warm, or very warm season plant.

Growing Degree Day- A form of degree day to estimate the approximate dates when a crop will be ready to harvest.

NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: CDD, Composite, Cooling Degree Days, Degree Day, Growing Degree Day, HDD, Heating Degree Days
Also listed in ...

Geostationary Operational Environmental Satellite (GOES) (a program of the US)
geostatistics
geostrophic wind
Global Atmosphere Watch (GAW)
greenhouse effect
greenhouse gas (GHG)
growing degree day (GDD)
growing season ...

See also: Cloud, Wind, Horizon, Pressure, Storm