... 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 ... heating and in increase of the average cooling degree-days, in reduction of the lower and in increase of higher temperature bins, all suggesting a climate change towards milder winters and ... 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,...