A field experiment was conducted during khar if season of 2003-2004 at research farm of department of Agril Meteorology, CCS HAU, Hisar located at 29º102 N lat75º462 E. long and 215.2 m above the MSL The experiment comprising eight treatments was laid out in a RBD with three replications. The crop was sown as rain fed in the last week of June. The temperature and relative humidity profiles were measured at four phenophases using Assmann’s psychrometer. Air temperature profiles in all treatments were inverse throughout the day in comparison to the bare field. Relative humidity was higher in the crop canopy than above crop canopy in all the treatments but after harvest of pearl millet, the slope was less than that in the earlier growth phase. Leaf area index, dry biomass accumulation, test weight, yield and harvest index were reported for all the treatments.