Data from the Directorate General of Health Services (DGHS) control room showed that 922 of the patients received treatment for acute respiratory infections.
Another 2,028 were treated for diarrhoea and 2,926 for other diseases, including jaundice, inflammation in the eye, skin diseases and fever.
Fifty deaths were reported across the country between November 1 and December 29 due to cold-related diseases, it said.
Meanwhile, the Met office recorded 5 degrees Celsius in Tentulia at 9am which was the lowest temperature of the day in the country, said Md Rasheduzzaman of the Bangladesh Meteorological Department.
Tnetulia recorded 4.5 degrees on Sunday, the lowest in this season. The last border town in Bangladesh’s north is one of the worst affected by cold every year.
On January 8 last year, the mercury plummeted to 2.6 degrees there, the lowest-ever recorded temperature in Bangladesh’s history.
Meteorologist Rasheduzzaman said the situation has improved across the country to some extent in the last two days but the northern region continues to suffer.
The Met office on Sunday said the temperature across Bangladesh will rise gradually from Tuesday but the mercury will fall again after rain, which is likely to occur in the first week of January.