摘要：The aim of this study is to put forward the correlation between the weather pattern models, dominates throughout the yearly weather condition of Turkey and meteorolojik changes such as pressure, wind, cloud curtain and rainy days. In this purpose, the daily weather maps (surface map and 500 hPa) and the results of meteorolojik datas calculations, measured at (14.00 pm) are extracted from The Turkish State Meteorological Service Web Sites of Forecast. The datas which were classified, by being frequenced, analized and calculated are all done. These calculations depicts that the MAB effective on december and on april, covering 49 days alltogether. The wind blows in all sides, with the exclusion of north-east winds. The days, were gauged the value of pressure as 1013 mb. has got relative frequency of %48. In the MYB which has got absolute frequency within the 103 days between the november and the april. The South winds follow initial position with the relative frequency of %46; the South winds were followed by the northern sector winds with the measured relative value of %45. %91 of days consisting weather type (94 days) has got high pressure (1013 mb.). Even 74 days of the 94 (%71), the value of the pressure reaches over 1020 mb. The rate of little cloudy days compared is %43. The MHD effectives identifiably throughout the summer seasonal months. Comparing with the other types it has got frequency of appearance of 106 days, which is more than the others. %80 of days of which has got MHD, The wind blows from northern sector. The ration of days which has got the value of pressure as <1013mb. is %39 comparing with other kinds. The very cloudy days has got a percentage as %26. The drought weather pattern in which scarcely rain appears is MHD (4 days - has got the percentage as %5). SSHD was registered all together 82 days, between april and october. %60 of the days the wind blows from northern sector. The days, has got <1013 mb pressure do have a percentage as %36. In %59 of the day, the sky was too cloudy. This type was the most rainy days, registered within the year (31 days-%40). SDD was a type of worst weather condition which was registered especially during the winter as 26 days within the year. It can also be detected that the social and economic activities were affected negatively because of the too cold and heavy snowy conditions at the case of SDD. In the %52 days of when SDD is on action, the winds blow from the North West. The share of the northern sector winds has got a percentage of percent 70. There is a close coherence at the comparative frequency (%85) which was estimated between the percentage of very cloudy days (%84) and the days have got the pressure of >1013 mb.
