Synopsis There is no textbook covering the content of entire course in agro-meteorology offered for undergraduate students of agricultural Universities in India. Students have to refer various books, monographs and periodicals to collects the information for various courses offered in the field of agrometerology. The present textbook is written to satisfy the various course requirements. The subject matter is both narrative and critical. Illustration have been added to make the subject matter all the more clear. At the end of each chapter a list of references have been given from which most of the material in the chapter is drawn. These references will also help the post graduate students for further reading. At the end of all chapter a list of terminology of agrometeorology has also been included to help students know about terms of agrometerology. The authors acknowledge their indebtedness to the authors of various books, monograps and periodicals from which they have drawn the matter in this textbook. In cases where a few tables have been reproduced, acknowledgement is duly credited beneath each reproduction, however in a few cases where it has not been possible to contact and obtain permission for reproduction, the authors and publishers offer their sincere apologies. It is felt this textbook meets a long felt need of students. We welcome suggestions from teachers as well as students to make the book more useful. Suggestions will receive the greatest consideration.