The Safdarjung observatory, considered the official reading for the city, recorded of 11.2 mm rainfall while areas under Palam, Ayanagar, Ridge and lodhi Road received 12.7 mm, 16.4 mm, 8.8 mm and 14.4 mm rainfall respectively in the last 24 hours, a MeT department official said. Humidity in air oscillated between 54 per cent and 98 per cent.