Globally, climate change is exerting an enormous influence on productivity of both natural and cultivated ecosystems. With growing population and its needs, nature was subjected to over exploitation at the expense of sustainability of resources and production base. Of the sciences that help us in understanding and adjusting with the nature in relation to agriculture, Agricultural Meteorology is one. There are several advanced books on this subject, but a text book on basic principles is lacking. The author has attempted to bridge the gap in clear and non-mathematical manner. The first eight chapters deal with different components of weather, followed by chapters on applications, of meteorological data for tackling the problem of crop production. In other chapters crop growth modelling, climate change, micrometeorology, weather modification and remote sensing have been discussed.