The climate of Larissa
The climate of Larissa has the elements of the continental climate of flat Thessaly with main characteristic the large thermometric breadth between summertime and winter that exceeds 22C.
The medium annual temperature fluctuates between 16C and 17C. Summer in the city is exceptionally hot, with the biggest temperature to be 45,2C, while the absolute minimal temperature has been marked to be -21,6C (source H.N.M.S., Period of Data: 1955-1997). The last five years has been observed increase of days with very high temperatures, which is attributed to the global climatic change.
From the elements of Larissa’s Meteorological Station for the period 1955-1997, it results that the prevailing winds are the eastern and following the north-eastern and the south-eastern, the northerner, the westerner and the north-western. It is characteristic the fact that the winds are low intensity, mainly, 2-4 Beaufort, while the rate of calmness is very large and exceeds the 55%.
The medium annual rainfall in the city fluctuates to 426.2 mm, while the medium price of humidity is 66,23% annually (H.N.M.S., Period of Data: 1955-1997).
The drainage of Lake Karla in 1962 influenced drastically the climate of the area, which began to alter and to become more continental. The aim of the drainage was the fight against epidemic diseases, as malaria, and the creation of cultivation lands. Today an effort for partial reconstruction of the lake takes place and will bring important improvements in the climate of the area.