CLIMATOLOGY OF RAIN-FOREST REGION. 



15 



and month to month. At Cinchona the highest annual falls were 108.12 

 inches in 1877 and 178.77 inches in 1909, the lowest 59.46 inches in 1897. 

 In October the fall has been as heavy as 43 inches in 1904 and as light as 

 2.67 inches in 1891. In February the fall has been as great as 12.72 

 inches in 1893 and as little as 0.83 inch in 1903. The average depar- 

 tures from the mean for February and October for thirty-five years are 



Table 6. Monthly mean rainfall for Cinchona, New Haven Gap, and Blue Mountain Peak. 



Cinchona 



New Haven Gap 



Blue Mountain Peak 



Resource (1 mile south of Cinchona, 



elevation 3,700 feet) 



Port Antonio, (sea-level, north coast) 

 Kingston (sea-level, south coast) .... 



Jan. 



7. OS 

 15.21 

 11.96 



Feb. Mar. 



4.01 



7.44 



10.41 



Apr. May 



5.23 6.16 10.68 

 7.28 9.13 11.32 

 6.57 11.56 14.25 



June. 



8.11 



9.21 



12.77 



July. 



3.80 

 5.90 

 9.37 



Cinchona 



New H iven Gap 



Blue Mountain Peak 



Resource (1 mile south of Cinchona, 



elevation 3,700 feet) 



Port Antonio (sea-level, north coast) 

 Kingston (sea-level, south coast) . . . 



Aug. 



8.04 

 4.78 

 8.59 



Sept. 



9.73 

 6.36 

 9.89 



Oct. 



17.91 

 20.05 

 22.11 



Nov. 



14.29 

 15.67 

 27.95 



Dec. 



10.66 

 24.28 

 22.59 



Total. 



Inches. 

 105.70 

 113.85 

 168.02 



67.80 

 130.48 



37.96 



Cm. 

 268.5. 

 2S9.0 

 426.8 



171' 2 



331.5 



96.4 



respectively 2.52 inches (for a mean of 4.01) and 9.93 inches (for a 

 mean of 17.91). At New Haven Gap during April, May, and June 

 1892 there was not a measurable amount of precipitation, while during 

 these months in 1894 there were 62.02 inches of rain. 



The number of days per month at Cinchona on which there was a 

 fall of 0.01 inch or more is exhibited in table 7, being the means of 

 eighteen years (1892 to 1909 inclusive): 



Table 7. Monthly mean number of rainy days. 



