eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences July, 2017 29 7 177 184 http://dx.doi.org/10.22147/jusps-B/290704 829 article S. AMBILY 1 V. G. HARITHA 1 C. SUNIL KUMAR MORAIS 2 T.E. GIRISH (tegirish5@yahoo.co.in) 1 Department of Physics,University College,Trivandrum 695034 (India) PhD. Research scholar (external C), M.S University, Tirunelveli (India) <p style="text-align: justify;">Solar influence on weather phenomena like Indian rainfall variations is well documented in literature. Solar activity shows significant cycle to cycle variability and it is observed to be maximum during the 19th sunspot cycle period (1954-64) when we consider direct sunspot observations during the past 315 years. It will be important and interesting to know what part of rainfall variability in India is associated with solar activity changes when we take in to account other influences such as El Nino. Since solar as signal to noise ratio on weather is expected to be maximum during the extreme &quot;sunspot cycle 19&quot; we have separated the All India rainfall data published by IMD in to seasons and months to study its associations with corresponding sunspot number variations. Solar forcing of rainfall variations in India is observed with weak to moderate statistical significance for the months of May, July, September, November and December in this sunspot cycle. Summer monsoon rainfall in India is found to be almost normal during the entire period of this exceptional solar cycle possibly due to significantly enhanced solar radiative forcing as evident from Solar 10.7cm radio flux variations.</p> https://ultraphysicalsciences.org/paper/829/ Solar forcing All India rainfall-Sunspot activity-19th Solar cycle