The unusually warm spell over the past few days is likely to continue through the weekend, the weatherman said on Friday.
The minimum temperature on Friday was 16.5 degrees Celsius, three notches above normal. The maximum was 29.9, four degrees above normal.
Over the next two-three days, the minimum is unlikely to drop below 16 degrees and the maximum is likely to be around 27-28 degrees.
A western disturbance over northern India is preventing the flow of the cold North Wind through the Gangetic plain, resulting in the Celsius surge. Met officials said the flow of North Wind, the principal agent of chill in Calcutta between December and February, was likely to resume once the western disturbance dissipates in three days or so.
However, even if the chill returns, the city weather is unlikely to be as cold as it was last week. "With over a month left before the season officially ends, there is every chance of another cold spell. But there is almost no chance of the minimum temperature dropping to 9-10 degrees Celsius," said a scientist at the Noida-based National Centre for Medium Range Weather Forecasting.
Winter usually arrives in the city in the first week of December and stays till the end of the third week of February. January has, on a long period average, been the coldest month of the year.