Information for Yachtsmen
Panama - Pacific International Exposition San Francisco 1915

PANAMA-PACIFIC INTERNATIONAL EXPOSITION CUPS Valuable cups will be offered as prizes for the winners of all races and the Exposition will furnish souvenirs to all competing yachts. The President of the United States has offered a cup for the winner of the 12-meter international race, to be known as the President Wilson Cup. BAY OF SAN FRANCISCO The bay, including its northern extension, San Pablo Bay, has an area of 420 square miles, and the length of the shore line is approximately 100 miles. The depth of the water varies from 2 to 69 fathoms. The eastern boundary of the bay, known as the Contra Costa and Alameda shores, is for the most part low lying, the land rising gradually for a distance of a mile or more and then abruptly forming the Berkeley hills. Farther east Mount Diablo rises to a height of 3,849 feet, the summit of which can be plainly seen from the hills of the city, although distant 32 miles. In the bay there are several islands, the most prominent being Angel Island, Yerba Buena and Alcatraz. The northern shore line is rugged and the land rises abruptly from the water. The Sausalito hills have an average elevation of 110 meters (360 feet), and back of these Mount Tamalpais, 14 miles distant from the city in an air line, reaches an elevation of 792 meters (2,596 feet). TEMPERATURE San Francisco has a comparatively small range of temperature. The annual mean, based upon records covering a period of 40 years, 1871 to 1911, and obtained from the mean of the daily maximum and minimum readings, is 13° C. (56° F.). A truer value deter- mined from the 24-hourly readings for a period of 20 years 1891 to 1910, is 12.6° C. (54.6° F.). The departures from the mean are comparatively small in all months. The warmest month is September, with a mean of 15° C. (59.1 F.), and the coldest month, January, 9.6° C. (49.2° F.). The warmest month has practically the same departure above the mean as the coldest month has below. The annual amplitude is 5.5° C (9.9° F.). The monthly mean temperature determined from hourly read- ings, 1891 to 1910, are: Month Degrees Centigrade Degrees Fahrenheit Month Degrees' Centigrade Degrees Fahrenheit 9 6 10 7 11,1 49 2 51 3 52 1 53 8 55 7 56 3 July................. August............... September............ October.............. November............. December............. 13 6 13 9 15 0 14 7 12 9 10,1 56 4 57 0 59 1 58 5 55 2 50 2 January. February March.. . April... May..... June.... 13 1 13 5 5