Well regarding to wheather in Doha , the winter comes very late and ends very early , most of the time winter starts after or at the end of october, but depends also! on the areas , in downtown u wont feel to much cold and in northan areas u can enjoy the best winter time , well in December up to February in city areas the winter seasone will in full swing ,but if u ever visit the northan areas of Qatar you will enjoy the best winter seasone there, am sure that friends who use to work in Northan areas, like Ras Gas , or else knows very well the condition there in winter .
There is no snow fall in Doha but sometimes ice cubes use to fell.