164 THE ANDES OF SOUTHERN PERU 



ABSOLUTE MONTHLY EXTREMES, SANTA LUCIA, 1913-14 



Date 



Highest 



Lowest 



Date 



May 4 (12) 



62° F. 



9°F. 



May (25, 26) 



June (4 days) 



60° F. 



0.2° F. 



June (3) 



July (4 days, 31) 



60° F. 



5°F. 



July (8) 



Aug. (S, 26) 



62° F. 



4°F. 



Aug. (4, 5) 



Sept. (several days) 



62° F. 



7°F. 



Sept. (4 days) 



Oct. (21) 



63° F. 



10° F. 



Oct. (12, 13) 



Nov. (11) 5 



63° F. 



24.0° F. 



Nov. (29) 



Dec. (2) 



70.4° F. 



22.2° F. 



Dec. (11) 



Jan. (19) 



69.5° F. 



26.5° F. 



Jan. (3, 15) 



Feb. (16,18) 



63.2° F. 



30.5° F. 



Feb. (23) 



March (S) 



6S.4° F. 



28.5° F. 



March (6) 



RAINFALL 



The rainfall record for Santa Lucia is for the year beginning 

 November, 1913. For this period the precipitation amounts to 

 24.9 inches of which over 85 per cent fell in the rainy season from 

 November to March. Most of the rain fell during the violent after- 

 noon tempests that characterize the summer of these high alti- 

 tudes. 



The rainfall of Santa Lucia for this first year of record ap- 

 proximates closely to the yearly mean of 23.8 inches for the sta- 

 tion of Caylloma in the adjacent province of that name. Caylloma 

 is the center of a mining district essentially similar to Santa 

 Lucia though the elevation of its meteorological station, 14,196* 

 feet (4,330 m.), is lower. It is one of the few Peruvian stations 

 for which a comparatively long series of records is available. The 

 Boletin de la Sociedad Geogrdfica de Lima 6 contains a resume of 

 rainfall and temperature for seven years, 1896-7 to 1902-3. Later 

 data may be found in subsequent volumes of the same publication 

 but they have not been summarized or in any way prepared for 

 analysis and they contain several typographical errors. A graphic 

 representation of the monthly rainfall for the earlier period is 

 here reproduced from the Boletin de minas del Peru? The 



4 Observations began on May 12. 



" For the first half of the month only; no record for the second half. 

 • Boletin de la Sociedad Geografica de Lima, Vol. 13, pp. 473-480, Lima, 1903. 

 7 Boletin del Cuerpo de Ingenieros de Minas del Perfi, No. 34, Lima, 1905, also 

 reproduced in No. 45, 1906. 



