• City breaks 41-year-old rain record with 38.7mm downpour in 24 hours • Mercury drops to ‘lowest ever’ night-time temperature in April • Met official warns of two more rain spells KARACHI: Several cities in the province set new records for heavy rains and lowest night and daytime temperatures for the month of April, the Met Office said on Friday. According to the Met department’s data, Karachi saw 38.7 millimetres of rain within 24 hours on Friday — the heaviest rain ever recorded i...