CHMI phenological network is divided into three types of stations: field crops, fruit trees, wild plants. There were executed vegetative and generative phenophases (bud burst, first leaves, beginning of flowering, end of flowering, fruit ripeness and leaves fall) by subsequent species from fruit trees phenological network: apple (Malus domestica Borkh.), pear (Pyrus communis (L.) Gaert.), apricot (Armeniaca vulgaris Lam.), morello (Cerasus vulgaris L.) and common walnut (Juglans regia L.).
Data were processed according species from chosen stations within period 1991 - 2010. Basic statistical characteristics and temporal variability of phenophase entrance were evaluated in the last twenty-year period.