Map showing average onset (monsoon arrival) dates and wind directions prevalent during India's southwest summer monsoon.
Own workInternational Borders: University of Texas map library - India Political map 2001Disputed Borders: University of Texas map library - China-India Borders - Eastern Sector 1988 &amp; Western Sector 1988 - Kashmir Region 2004 - Kashmir Maps.State and District boundaries: Census of India - 2001 Census State Maps - Survey of India Maps.Other sources: US Army Map Service, Survey of India Map Explorer, Columbia University 
Map specific sources: Onset dates: Normal dates of onset of south-west monsoon over Indian regionWind currents/ITCZ: Burroughs, WJ (1999), The Climate Revealed, Cambridge University Press, ISBN 0-521-77081-5, p. 138.
Saravask, based on work by Planemad and Nichalp