This year's record high is yet to surpass the all-time high of 39.2 degree Celsius recorded on April 25, 2016, Patil said. Meanwhile, Kalaburgi, which has been recording the highest maximum temperature in Karnataka, witnessed a slight dip. It registered 40.5 degree Celsius on Sunday, while the day before it was 42.4 degree Celsius, according to the IMD data.