The impact of climate change on the locally grown crops in Haryana, Haryana State reconnaissance survey was conducted. With the understanding of site specific environment settings, the sampling location, the relevant parameters, sampling frequency and the type of samples to be collected were determined. The results depicted from data collected during a three year period (i.e. 2010-2013). It was observed that significantly high percentage of farmers have experienced adverse effects to their crop yield and high incidence of the crop diseases, which has strained their agriculture activity related budget as well as earning at very economic cost in terms of the pesticides. They have to carry out crop rotation due to change in climatic conditions which incidentally have shown positive impact on the overall crop yield.