Due to strong winds, Delhi was quite chilly on Tuesday. But compared to other days, visibility was somewhat better, and there was no really thick fog. The city's main meteorological station, Safdarjung Observatory, reported a minimum temperature of 10.5 degrees Celsius, which is 3.6 degrees above average, and a high temperature of 16.2 degrees Celsius, which is 2.8 degrees below normal. There was a range of 87% to 92% relative humidity.
Thick fog blanketed Delhi during the early hours, reducing visibility to 150 meters and causing delays to 25 trains. At Palam, visibility improved from 150 meters in dense fog to 700 meters in shallow fog by 8:30 am, while Safdarjung recorded a minimum visibility of 500 meters.