According to MeT department, the city received 3.8 mm of rains between 8:30 AM to 5:30 PM.
There was little difference between the minimum and maximum temperature as the minimum, recorded last night was recorded at 14.2 degrees Celsius which was six notches above normal.
The maximum temperature recorded is the season's lowest, the MeT said.
Humidity level remained high throughout the day as it oscillated between 87 and 93 per cent.
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Similar weather conditions may remain till tomorrow morning and there is possibility of more rains during the night, a MeT official said.
Snowfall in the higher reaches and rains in low-lying areas of Uttarakhand and in the entire Indo-Gangetic plains is the reason for the sudden drop in temperature in Delhi, the official said.
"As was predicted five-six days in advance, the entire western Himalayas was predicted to have rain and snow. Even the Indo-Gangetic plains including Haryana, Punjab and Delhi got a good amount of rainfall," Director General, MeT Department L S Rathore said.
The Met department had predicted such weather in Delhi on Wednesday saying light rain/thunderstorm may occur over some parts of Delhi-NCR during Saturday and Sunday. Shallow to moderate fog would also occur over some parts Delhi during morning hours of the outlook period.
Cold conditions have intensified in the national capital since yesterday as the sky remained overcast and scattered rains occurred in some parts of the city which was swept by chilly winds, the official said.
Tomorrow's forecast is generally cloudy weather with mainly clear sky morning onwards. There would be shallow fog in the morning. The maximum and minimum may settle at around 17 degrees and 11 degrees Celsius respectively.