New Delhi, Nov. 17 -- Delhi woke up to its coldest November morning in more than three years on Sunday, as the minimum temperature dipped to 9 degrees Celsius (degC) - a sharp 4.5degC departure from what is considered normal for this time of year. Forecasts indicated that Monday could be even colder, with the minimum possibly settling close to 8degC.

Although a cold wave was not declared on Sunday, the India Meteorological Department (IMD) said it is likely to be announced on Monday if two or more weather stations meet the criteria for a second consecutive day.

A cold wave is classified when the minimum temperature falls below 10degC, with a departure of 4.5degC or more below normal for two days in a row. On Sunday, at least two station...