Karnal experienced a cold night at 4 deg celsius, down three degrees, while Narnaul and Bhiwani recorded respective minimums of 6.2 deg celsius and 5.2 deg celius.
Amritsar in Punjab braved the chill at 2.4 deg celsius minimum, two below normal.
Ludhiana registered a low of 6.2 deg celsius, down one degree while Patiala's minimum settled at 6.6 deg celsius.
Chandigarh recorded a low of 5.7 deg celsius, the MeT said here.
The MeT office said that the fog had reduced visibility early today at Ludhiana and Karnal.