CLIMATIC CHARTS SHOWING THE AVERAGE ANNUAL PRECIPITATION AND PRECIPITATION FREQUENCY FOR THE EUROPEAN COMMUNITY, THE UNITED KINGDOM, DENMARK AND THE ALPS DURING THE PERIOD 1921-1950. (SCALE 1:5,000,000). PART I. AVERAGE ANNUAL PRECIPITATION (MM). PART II. AVERAGE ANNUAL NUMBER OF DAYS WITH 1.0 MM OR MORE OF PRECIPITATION