The current spell of chill, brought on by snowfall in Jammu and Kashmir, is likely to last another four to five days, the weather department said.

Sunday's maximum temperature was 26.1 degrees Celsius and minimum 14 degrees Celsius..

The chill was accompanied by fog on Sunday, which disrupted flights. Officials at the Calcutta airport said 30 outgoing flights and five incoming ones were delayed.

Visibility dropped below 50 metres between 3.50am and 6am, causing the delays, the officials said. The airport has the Category IIIB instrument landing system, which allows flights to operate at a minimum visibility of 50 metres.

Conditions improved after 6am but the domino effect of delays continued almost till noon, an official said.

The weather office has said the next few mornings are likely to be foggy, too.

“There has been continuous snowfall in the north-western part of our country, in places like Jammu and Kashmir, over the past few days. The northwesterly winds blowing in from those areas are bringing the cold. The chill in the air in Calcutta is a result of that,” said G.K. Das, director, India Meteorological Department, Calcutta. “We expect the chill to persist for another 4-5 days.”

Tamanna Khanna, 27, a resident of Rosedale Garden in New Town, enjoyed a ride on her bicycle through the misty Major Arterial Road in New Town on Sunday morning. “Sunday had the near perfect weather for riding and we enjoyed it to the fullest,” she said.