The minimum temperature in Delhi dropped to 7.5 degrees Celsius on Friday morning, five notches below normal for this time of the year. This was the lowest minimum temperature recorded in November since 2006, India Meteorological Department said. According to IMD scientists, the minimum temperature does not usually drop below 10 degrees Celsius in November. In November 2019, the lowest temperature was 11.4 degrees Celsius and in November 2018, it was 10.5 degrees Celsius. The sharp drop in night temperature is mainly because of a combination of cold winds from Western Himalayan region as well as largely clear skies in Delhi, IMD’s regional weather forecasting centre head Kuldeep Srivastava said.