Chandigarh, Feb. 4 -- The city's maximum temperature plunged from Sunday's 23.3degC to 20.3degC on Monday, bringing chill back in the air.

The Indian Meteorological Department (IMD) linked the drop in temperature to an ongoing Western Disturbance (WD), which has also caused dense fog, leading to reduced visibility in the evening and early morning. On Monday, visibility fell to just 80 metres in the morning.

As per IMD, visibility between 50 metres and 200 metres is classified as "dense fog", while below 50 metres, it's considered "very dense fog".

At 20.3degC, the maximum temperature was 0.7 degrees below normal. The minimum temperature also dipped from 11.1degC to 10degC, which was still 1.2 degree above normal.

The active WD is also...