Normal life was also disrupted in the region as visibility level dropped due to foggy conditions at several places in the two states this morning.
Hisar recorded seven degrees below normal, its lowest in several years, a MeT official here said.
Amritsar and Adampur in Punjab also reeled under intense cold recording respective minimums of 0.3 deg C and 1.5 deg C.
Among other places, Karnal experienced a cold night at 2 deg C, down five notches, while Bhiwani's low settled at 2.6 deg C. Ambala registered a low of 6.1 deg C.
Besides, several parts of Punjab and Haryana, including Hisar, Karnal, Amritsar, Patiala, Bathinda, Narnaul and Ludhiana remained engulfed under fog this morning adversely affecting normal life.
The MeT has forecast no immediate relief from the ongoing cold conditions during the next few days.