New Delhi, March 21 -- The Capital experienced an unusual March day, as a cyclonic circulation sent mercury levels plummeting to 21.7degC, which was 9.6degC below the normal and a dip of 5.1degC from the previous day-marking the lowest maximum temperature for the month in six years. The last time Delhi logged a lower temperature was on March 8, 2020, when it clocked a maximum temperature of 21.2degC. The chilly afternoon winds and other favourable conditions also cleaned up the Capital's air, as it logged a "satisfactory" AQI of 93, according to the Central Pollution Control Board. This marked the cleanest air for 2026 and the first "satisfactory" air day since October 9, 2025, when it logged an AQI of 99. The last time Delhi recorded a cle...