| ABSOLUTE MONTHLY EXTREMES, SANTA LUCIA, 1913-14 | ||||
| Date | Highest | Lowest | Date | |
| May[30] (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. (8, 26) | 62° F. | 4° F. | Aug. (4, 5) | |
| Sept. (several days) | 62° F. | 7° F. | Sept. (4 days) | |
| Oct. (24) | 63° F. | 10° F. | Oct. (12, 13) | |
| Nov. (11)[31] | 63° F. | 24.0° F. | Nov. (29) | |
| Dec. (2) | 70.4° F. | 22.2° F. | Dec. (14) | |
| Jan. (19) | 69.5° F. | 26.5° F. | Jan. (3, 15) | |
| Feb. (16, 18) | 63.2° F. | 30.5° F. | Feb. (23) | |
| March (8) | 68.4° 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 afternoon tempests that characterize the summer of these high altitudes.
The rainfall of Santa Lucia for this first year of record approximates closely to the yearly mean of 23.8 inches for the station 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 Boletín de la Sociedad Geográfica de Lima[32] contains a résumé 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 Boletín de minas del Perú.[33] The amount of precipitation fluctuates considerably from year to year. For the earlier period, with a mean of 23.8 inches the minimum (1896-7) was 8 inches and the maximum (1898-9) 36 inches. For the later period, 1903-4 to 1910-11, with a mean of 29.5 inches the minimum (1904-5) was 17.5 inches and the maximum (1906-7) was 43 inches.
