SRINAGAR, Nov 21: The minimum temperature in Kashmir fell below freezing on Tuesday, and heavy fog caused delays to flights at Srinagar International Airport. The cold wave continued to worsen in the region. According to a meteorological department official, Srinagar city recorded a low of minus 1.2 degrees Celsius on Monday night, while Shopian in south Kashmir recorded the lowest minimum temperature in the valley at minus 3.9 degrees. According to the official, it was the coldest night in the majority of the valley, including Srinagar City.According to him, the minimum temperature at Gulmarg ski resort was minus 0.6 degrees Celsius, while Qazigund, the town that serves as the entry point to Kashmir, recorded a low of minus 0.8 degrees Celsius. According to the official, Pahalgam, the starting point for the yearly Amarnath yatra, saw a low of minus 2.9 degrees Celsius, while Pulwama saw a low of minus 2.7 degrees. There are calls for schools up to primary classes to be closed due to the significant decrease in the minimum temperature. The Jammu and Kashmir Private Schools Association requested in a statement on Monday that the administration declare winter break for lower grades. Most of Kashmir was covered in a thick layer of fog, which made morning traffic difficult.Monday and Tuesday morning flights have been delayed due to fog. Early in the day, visibility is still poor, according to an Airport Authority of India official.