This text aims to impart fundamental knowledge of the terminology utilized in agricultural meteorology to both postgraduate and undergraduate students, as well as researchers in the field. The book has been meticulously designed to familiarize students with all essential concepts and definitions in agrometeorology. Furthermore, the book encompasses pertinent terms from related disciplines such as soils, agronomy, plant physiology, and hydrology. The intention of this book is to provide a comprehensive understanding of the terminology used in agricultural meteorology.