In the last 2-3 decades we have introduced a lot of almond varieties from different climatic zones and we research them in different areas in Republic of Macedonia. We have noticed mass flower buds drop in the phase of swell (before the blossom) in some varieties whose origin is from warmer areas. It is a special characteristic for the varieties: Ferralise, Tuono x Ai (269 x 189), Cristomorto, Desmayo Largueta, Ferraduel, Ferragnes, Tuono, Nonpareil and sometimes for the varieties Troito, Marcona, Tribucio, etc. This dropping of flower buds is not caused by the frosts because flower buds with completely healthy internal tissues dropped. This phenomenon is more marked in cooler areas, at higher altitude and with smaller sum of active temperatures in the vegetation. In this paper meterorological conditions in some areas in certain years are presented as well as their influences on flower buds drop in some almond varieties.