The lowest temperature in the country was recorded in Rajshahi on Sunday at 7.8 degrees Celsius. Meanwhile in Dhaka, the mercury dipped to 15.9 degrees Celsius. If the temperature is at or below 10 degrees Celsius, it is assumed that a cold wave is sweeping through. If the mercury lies between 8 and 10 degrees Celsius, it indicates a mild cold wave. When the mercury drops below 6 degrees Celsius, it is assumed that an intense cold wave is blowing through.

Source: bd News24 December 27, 2020 08:48 UTC