In the plains, the IMD declares a cold wave if the minimum temperature dips to 4 degrees Celsius. A severe cold wave is when the minimum is 2 degrees Celsius or less. The minimum temperature on Tuesday and Thursday had settled at 2.1 degrees Celsius and 3.8 degrees Celsius, respectively, due to the cold and dry northwesterly winds barrelling through the plains, the IMD said.
Delhi had recorded a “cold day” on Sunday with the maximum temperature dropping to 15 degrees Celsius, six notches below normal and the lowest this month.
On New Year’s Day, the city had recorded a minimum of 1.1 degrees Celsius, the lowest for the month in 15 years.