Delhiites today woke up to a chilly Christmas morning with the minimum temperature settling at 5.5 degrees Celsius, two notches below normal for this time of the season. Few areas in the city witnessed shallow fog with the visibility being recorded at 1,000 meters. <br/><br/>The weatherman predicted mainly clear sky for the day with the maximum temperature settling at around 20 degrees Celsius. Yesterday, the minimum temperature was recorded at 7.2 degrees Celsius while the maximum settled at 19.2 degrees Celsius.