Published online by Cambridge University Press: 19 June 2001
An attempt has been made to forecast the all-India monsoon rainfall by using 30 years' pre-monsoon upper-air mean temperatures (recorded between 1959 and 1988) at stations over India. The importance of Nagpur temperatures at 850 and 700 hPa during the pre-monsoon season is discussed. Two sets of regression equations, one with April temperatures and the other with May temperatures, are fitted using the independent predictors. The equations are tested for a two-year period (1989-1990). The forecast values are found to be reasonably good.