1898-1902. No. 4.] PROBABILITY OF PRECIPITATION. ANNUAL PERIOD. 339 



PROBABILITY OF PRECIPITATION. ANNUAL PERIOD. 



The following Table shows in percentage the mean annual values 

 of the probability of precipitation for each month extracted from the 

 Table on pp. 336—338, and the monthly values smoothed. 



Annual Mean 11.56 p. c. 



Minima 5.5 — January 



— 13.9 - July 

 Maxima 16.5 — May 



— 16.0 — September 

 Range 11.0 - 



Precipitation is least frequent in winter, most frequent in spring 

 and autumn. 



