In the mediterranean area it is use, and also usefull, to specify in monthly reports the amount of days with frost and also the sum of hours with frost, that are the days or hours win wich the min. temperature was, at least partially, under 0
In the mediterranean area it is use, and also usefull, to specify in monthly reports the amount of days with frost and also the sum of hours with frost, that are the days or hours win wich the min. temperature was, at least partially, under 0