The definition of the weather categories and the selection of the cases of each category was done according to the instructions and recommendations of the World Meteorological Organization.
January had a few days with early/late frost but also with sky clear conditions while only few snowfalls recorded over most mountains. In contrast a large amount of snow covered the mountainous areas of Evia, eastern Sterea, northern Attica and Crete. Also north strong gale force winds prevailed over Greek seas for a long period...
