Delhi records maximum cold wave days in January in 13 years: IMD


Delhi recorded seven “cold wave” days in January, the maximum in the month since 2008, the India Meteorological Department (IMD) said on January 31.

In the plains, the IMD declares a cold wave if the minimum temperature dips to four degrees Celsius. A severe cold wave is when the minimum temperature is two degrees Celsius or less.

“The number of cold wave days in January this year was the maximum since 2008, when 12 such days were recorded,” Kuldeep Srivastava, the head of the IMD’s regional forecasting centre in New Delhi, said.

Only one “cold wave” day each was recorded in 2020 and 2019.

The city had recorded six “cold wave” days in January 2013.

Mr. Srivastava said only one western disturbance affected the plains of northwest India this January, leading to more cloudless nights and therefore, more “cold wave” days.

Clouds trap some of the outgoing infrared radiation, warming the ground. The minimum temperature falls in the absence of a cloud cover.

A cold wave swept the national capital on January 31 morning, with the minimum temperature dipping to 3.1 degrees Celsius. This is the fourth “cold wave” day in Delhi in a week.

The minimum temperature settled at 2.1 degrees Celsius and 3.8 degrees Celsius in the national capital on January 26 and 28 respectively due to the cold and dry northwesterly winds barrelling through the plains, the IMD said.

Cold wave conditions prevailed in Delhi on Friday too with the minimum temperature settling at four degrees Celsius, five notches below normal. On New Year’s Day, the city had recorded a minimum temperature of 1.1 degrees Celsius, the lowest for the month in 15 years.

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