Delhiites breathed clean air yesterday with strong winds washing away the dust and pollutant particles bringing the air quality in a moderate level.<br />''<br />''The windy day pulled the mercury down at four notches below normal.<br />'' <br />''MeT department said that the maximum temperature was recorded at 20.9 degrees Celsius, four notches below normal, while the minimum temperature settled at 15.8 degrees Celsius, five notches above normal.<br />''<br />''Humidity levels oscillated between 100 and 74 percent.<br />''<br />''The weatherman has predicted partly cloudy sky this morning and cold wind to sweep the city.<br />