Surface marine observation statistics are presented on monthly charts in the forms of graphs, tables and isopleth maps. Land station data appear graphically and in Station Climatic Summary tables. The marine data (mostly from ships of opportunity) were summarized and machine plotted by one-degree quadrangle. Data for the moored buoys were summarized independently and plotted at their locations so comparisons between the data sources could be made as the charts were being subjectively analyzed. The graphs and tables for the marine areas are also presented by one-degree quadrangles (for visibility, wave heights, and wind roses). The geographical area for the tables and wind roses had to be divided and presented on two pages of clarity. These graphs and tables represent the objective compilation of available ship data; the data were not adjusted for suspected bias (low observation count, heavy weighting of observations during a short time interval, biases in coding, etc.), and differences may be found when comparing the graphical data with isopleth analyses. The total number of observations for a given one-degree square should always be considered when interpreting the data, as there may be an insufficient number to permit representative statistics.