While the western districts of the state experienced cold wave conditions, there was an abnormal drop in day temperatures in some sub-Himalayan districts.
Sriniketan in Birbhum district was the coldest in the plains with a minimum temperature of 5.8 degrees Celsius at 5.30 am this morning, the MeT department said.
In North Bengal, Jalpaiguri recorded the day's maximum temperature at 13.5 degrees Celsius, 10 notches below normal, while in Coochbehar the mercury rose to 15.4 degrees Celsius, eight notches below normal.
Minimum temperatures dipped below the 10 degrees mark in most places of the state, with Asansol recording a low of 7.1 degrees Celsius, followed by Coochbehar 7.6 degrees Celsius, Burdwan 7.6 degrees Celsius and Bankura 8.4 degrees Celsius.
Kolkatans experienced a chilly Sunday with a minimum temperature of 10.6 degrees Celsius, which is three notches below normal, the MeT department said.