Climatology of zonal-mean zonal wind, deviations of temperature from its winter-mean values, and amplitudes and vertical component of Eliassen-Palm fluxes created by large-scale planetary waves (PWs) at high northern latitudes at altitudes from ground up to 60 km is studied using 35-years (1980-2014) databases of meteorological reanalysis MERRA (years 1980 -2014) and UK Met Office (1994 2014). Climatological temperature deviations averaged over 70-90 latitudinal band reveal cooler and warmer layers descending due to seasonal changes during polar night. PW amplitudes and upward Eliassen-Palm fluxes averaged over 35 years have periodical maxima with the main maximum in the beginning of January at altitudes 40 – 50 km. During the intervals of more frequent occurrence of sudden stratospheric warmings, maxima of PW amplitudes and Eliassen-Palm fluxes, also minima of eastward winds in the high-latitude northern stratosphere have been found. Climatological intra-seasonal irregularities of sudden stratospheric warming dates could indicate the existence of stratospheric vacillation phases repeating in different years. There are differences between atmospheric characteristics averaged over years 1981 – 1994 and 1995 – 2014 including lower multiyear average eastward winds and warmer polar stratosphere during the last interval.