... monthly and yearly values of CDD were increased. The reduction in the yearly values of HDD was in the range of 9.5 to 22% in Athens, and in the range of 5 to 9% in Thessaloniki, depending on the ... temperature, with the highest changes observed at the lowest base temperatures. The increase of the yearly values of CDD was in the range of 25 to 53% in Athens, and in the range of 10 to 16% in Thessaloniki, ... trend in the eastern and south-eastern parts of the Mediterranean, indicating a less frequent expansion of the low pressure over the area and therefore a weakening of the Etesian winds and a subsequent...