According to IMD guidelines, a cold wave is declared in the plains when the minimum temperature falls to 4 degrees Celsius or below or when it drops between 4.5 to 6.4 degrees below normal

Delhi recorded the season’s coldest morning Thursday as the minimum temperature dipped to 4.5 degree Celsius at the Safdarjung station, which is representative of the city. The season’s first cold wave day was observed on Wednesday when the minimum temperature in Delhi dipped to 4.

Delhi experiences coldest day of winter with temperatures dropping to 4.5°C, cold wave conditions observed in isolated places.

The IMD has predicted a further dip, stating that the temperature in the national capital could touch 4 degrees Celsius later on Thursday

This winter chill marks a rare occurrence, as Delhi’s minimum temperatures in early December have dipped below 5°C for the first time in 14 years.

A thin layer of fog covered parts of Delhi this morning as the minimum temperature dropped below 5 degree Celsius.

Delhi and several north Indian states are experiencing a cold wave, with the national capital's temperature dropping to 4.5 degrees Celsius. The India Meteorological Department forecasts a potential further decline to 4 degrees Celsius.

The India Meteorological Department (IMD) had on Wednesday said this was also Delhi’s earliest dip below 5°C since 1987, when this happened on December 6 (4.1°C)