This project work was conducted in Rajshahi district under Barind area of Bangladesh to estimate the consumptive use (Cu) and crops irrigation water requirement (C.I.R) from irrigated rice and wheat fields. The work was carried out to compare the Cu and C.I.R at maximum and minimum temperature during pre (1964-1985) & post (1986-2008) implementation of Barind Integrated Area Development Project (BIADP). From 1964 to 1985 the rainfall trend was decreasing and maximum, minimum temperature and sunshine hours was in increasing trend. For this result before implementation of the project consumptive use and crop water requirement was less. From 1986 to 2008 the rainfall was in increasing trend and maximum, minimum temperature and sunshine hours was in decreasing trend. For this result after implementation of the project consumptive use and crop water requirement was comparatively increased. The consumptive use and crop water requirement for individual year from 1975 to 1984 was not uniform. On the contrary from 1999 to 2008 these values were uniform.