Agricultural meteorology draws on basic physical and biological sciences to discover, define, and apply knowledge of weather and climate to production of food-, feed-, fiber-, and bio-based products. Agricultural meteorology is based on fundamental principles of radiation and surface aerodynamics and thermodynamics. Models of atmospheric interactions with plants and soil, made more applicable by expanding historical databases, find increased application in risk management and climate change. A highly trained workforce in agricultural meteorology is needed to address future needs for global food security in a changing global climate.