Delhi and NCR saw unusual fog on a May morning on Thursday after three days of rainfall which has also brought the temperature down sharply.
With no trace of heatwave, and an unusual chill in the air with mercury at 16.9 degrees Celsius, people woke up to a blanket of fog on Thursday in parts of the city after three days of intermittent rainfall.
The city crossed rainfall average for month of May with intermittent rainfall and cloudy weather in the city and adjoining for the last three days under the influence of successive western disturbances.
While the unusual fog in Delhi-NCR on Thursday surprised residents, weather department officials said high moisture content in the air and a significant difference between the daytime and nighttime temperatures create conditions that are favourable for the formation of fog.