In the changing scenario of climate, the present study is carried out to identify the recent trends of rainfall variability in different sectors of Uttar Pradesh. Analysis of rainfall (1901-2017) was made for two regions of U.P. (Eastern, Western U.P.). It was found that in general, annual rainfall decreased in all sectors of U.P. but the rate of decrease of rainfall in eastern U.P. was faster as compared to western U.P. Variability of seasonal rainfall in different sectors of U.P. was also in the same order and magnitude as that of total rainfall. Average onset dates of south west monsoon in Eastern U.P. has been shifted to 19th June, from the normal date of 15th June. Consequent upon length of rainy season was also decreased from normal 108 days to 99 days in Eastern U.P. whereas reduction in length of rainy season Western U.P. ranged was 13 days. Rainy day and rainfall intensity both reduced in all sectors of U.P.