Charakterystyka agrometeorologiczna obszaru Polski północno-wschodniej na postawie danych wybranych stacji z lat 1951-1995

On the basis of full measuring and observing database from three meteorological stations located (on the same altitude about 53°40’ and altitude about 100 m above sea level) in Northem-east region of Poland, the characteristic of growing seasons were calculated and analyzed. Length of growing season during 45 years of observing period varied from 156 to 254 days. Average a ir temperature and precipitation during these seasons amounted from 13.1 to 13.4°C and form 352 to 382 mm, respectively. All important agrimeteorological factors (frequency of sub-zero temperatures and frosts, periods with heavy falls and sequences of drought periods, as well as balance between precipitations and evaporation) worsened from the west to the east of region. No significant statistical trends of change within the 45 years were found in range analyzed factor.