MeT department officials said that the fog was responsible for reduced visibility in the region and resultantly, several trains and flights were either cancelled or delayed by hours.
The condition was no better on the roads where motorists were forced to switch on their headlights even as vehicular traffic moved at a snail's pace due to reduced visibility.
Besides, tripping of power and low pressure of water supply also added to the woes of the people.
The minimum temperatures in the region, however, hovered between four notches below normal to 2 degrees celsius above normal, the MeT office said.
Narnaul was the coldest place in the plains of Punjab and Haryana with a low of 3 degrees celsius, three notches below normal.
And, while Hisar shivered at a low of 3.4 degrees celsius, four notches below normal, the minimum temperature at Bhiwani was 5 degrees celsius.
Among other places, Amritsar registered a low of 6 degrees celsius, two notches above normal followed by 7.1 degrees celsius at Ludhiana and 7.5 degrees celsius in Chandigarh, which was one notch above the normal.
In Jalandhar, on the other hand, the minimum temperature was at 8.5 degrees celsius, up by about five notches from yesterday.
Ambala reported a low of 8.1 degrees celsius, one notch above normal, while Patiala, too, saw a similar movement of the mercury with a low of 7.9 degrees celsius.
The MeT office has forecast a further drop in minimum temperatures in the region and said that poor visibility due to foggy weather would continue over the next 24 hours.
