New Delhi, Dec 28 (TIWN) Days after witnessing cold wave and dense fog, Delhiites may get some relief from the chilly period from Wednesday till January 1 following western disturbance, said an India Meteorological Department (IMD) official.

The city residents on Wednesday woke up to a thin layer of fog and a cold day with Palam weather station in Delhi recording a minimum temperature of 7.8 degree Celsius while Safdarjung recorded a minimum temperature of 8.4 degree Celsius.  A cold day is when the minimum temperature is less than or equal to 10 degrees Celsius below normal and the maximum temperature is at least 4.5 degrees below normal. A severe cold day is when the maximum is 6.5 degrees or more below normal. A 'severe' cold wave is when the minimum temperature dips to two degrees Celsius or the departure from normal is more than 6.4 degrees Celsius.