The mercury plunged nearly four degrees in Kargil town last night to settle at minus 6 degrees Celsius, the official said.
Pahalgam also witnessed a drop of 0.5 degrees as the south Kashmir tourist resort recorded a low of minus 3 degrees Celsius, he said.
State's summer capital, Srinagar, registered a drop in night temperatures with the minimum of 1.2 degrees Celsius, compared to Sunday's 1.7 degrees Celsius.
The night temperature in Gulmarg was up by a degree to settle at minus 1 degree Celsius, the MeT official said, adding snowfall is predicted for the famous ski-resort in the mid-week.
The official said other places in the valley like Qazigund and Kupwara also recorded a minimum temperature close to the freezing point.
The weather office has forecast that a fresh western disturbance would likely affect the state from tomorrow and said the weather would remain dry and pleasant till then.