Frost happened on mountaintops in the North where the lowest temperature fell to 5 Celsius degree Sunday morning, the Meteorological Department announced.
The department announced in its daily weather report that the minimum temperatures on mountaintops in northern provinces ranged from 5 to 11 degrees while the temperature on the lowland in the North ranged from 17 to 21 degrees.
It said the minimum temperature in Bangkok would be 21 to 22 degrees.
Antoni Uni 