The minimum temperature was recorded at 9.3 degrees Celsius, two notches above the season's average, while the maximum temperature stood at 23.4 degrees Celsius, three notches above the normal.
The visibility was recorded at 50 metres at 5.30 AM at Palam which increased to 200 metres at 8.30 AM. It increased to 800 metres at 11.30 AM and was recorded 500 meters at 2.30 PM, said a MeT department official.
At Safdarjung, visibility remained constant at 400 metres between 5.30 AM-8.30 AM. It improved to 1,800 metres at 11.30 AM.
Flight operations were affected as the arrival and departure of almost 72 domestic and international flights were delayed, according to the Delhi Airport website.
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However, there were no cancellations or diversions, said an airport official.
According to the MeT department, humidity oscillated between 47 per cent and 100 per cent.
The MeT office has forecast clear skies for tomorrow with moderate to dense fog in some parts during the morning hours.
"Maximum and minimum temperatures are likely to settle around 23 and 8 degrees Celsius, respectively," the weatherman said.