The minimum temperature registered a further drop at many places in Punjab, a Meteorological Department official said here.
Amritsar also reeled at a low of 1 degrees Celsius, down two notches against normal limit.
Freezing cold also swept Halwara, which recorded a low of 1.3 degrees Celsius while Bathinda also reeled at a low of 1.8 degrees Celsius.
Faridkot recorded a low of 2 degrees Celsius while Pathankot registered a low of 3.7 degrees Celsius.
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Patiala recorded a minimum of 6.6 degrees Celsius and Chandigarh experienced a cold night at 6.6 degrees Celsius.
There was no let up in biting chill at most places in Haryana, with Narnaul recording a low of 3 degrees Celsius.
Biting cold also swept Hisar, which recorded a low of 4.1 degrees Celsius while Karnal's minimum temperature settled at 3.2 degrees Celsius.
Cold weather conditions also persisted in Sirsa, where the minimum temperature settled at 3.2 degrees Celsius.
Rohtak and Ambala recorded respective minimum temperatures of 6.6 degrees Celsius and 6.8 degrees Celsius.
The MeT official said that dense fog reduced visibility early in the morning today at Amritsar.