The rainfall of 74.3mm recorded on Saturday was the highest rainfall during December in the city in the last 32 years.
According to the Chandigarh Meteorological Centre, the city had recorded rainfall of 55.8mm in 1982.
An official of the meteorological centre said there was no rainfall in the city from December 1 to 14 in 2010, 2011 and 2013.
However, on December 14, 2012, the city had recorded rainfall of 13.6mm.
The official said rainfall was reported till 1:30pm on Sunday.
The showers started at around 6am on Saturday, thus bringing down the maximum temperature for this time of the year by 7 degree Celsius below normal to 14.7 degree Celsius.
The city had already recorded the highest rainfall in a single December day since 2010 with 45.3mm, which was recorded on late Saturday night.
The official also said the city had recorded 74.3mm rainfall from 8:30am on Saturday till 8:30 am on Sunday.
On Sunday, the city had recorded 11 mm rainfall.
A bulletin from the meteorological centre said the minimum temperature was 10.6 degree Celsius.
Western disturbances are said to have caused the rains.
According to the weather forecast made by the metrological centre, there will be a partly cloudy sky with the possibility of thunders; mist/shallow fog may be visible during the morning hours on Monday.
"Light to moderate rain/thundershowers will occur at few places during the next 24 hours in Haryana and Punjab and we will have a spell of sunny days thereafter, beginning Tuesday," said the bulletin.
On Tuesday, there will be clear skies while mist and shallow fog may occur during the morning hours, with the maximum temperature touching 20 degree Celsius and the minimum temperature touching 7 degree Celsius.
In the next three days, the day temperature will settle at around 21 degree Celsius.
Surinder Paul, director of the meteorological centre, said there would be fog in the coming days and the minimum temperature would also led to colder nights.