The dip in the minimum temperature was recorded after storm, high speed winds, rain and and hailstorm swept the city on Wednesday night, leaving two people dead and 11 others injured.
The weather department said 12 mm rain was recorded in the last 24 hours.
On Wednesday, the minimum temperature was recorded at 30.2 degrees Celsius, the highest minimum of the season.
The India Meteorological Department (IMD) forecasted partly cloudy sky on Thursday and thunderstorm with rain on Friday and Saturday.
The relative humidity at 8.30 am was 69 per cent. The maximum temperature is expected to settle at 40 degrees Celsius, the IMD said.
The air quality was recorded in the poor category as the Air Quality Index (AQI) at 9 am stood at 297.
According to the Central Pollution Control Board (CPCB), an AQI between zero and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’. PTI BM DV DV