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A Table showing the average quantity of Rain at Green- 

 wich, Kent, for each month of the year, deduced from 

 twenty-five consecutive years from 1815 to 1839. 



From the above synopsis, it appears that the greatest 

 average quantity of rain falls in October and the least 

 in February. 



The heaviest rains, or those which yield the greatest 

 quantity in the gauge, come down in the summer and 

 early autumnal months. In the summer an inch and a 

 half will sometimes fall in less than an hour in short 

 but impetuous torrents ; in the autumn the same quan- 

 tity will occupy many hours in falling. 



In whiter the number of wet days exceeds that of the 

 summer period; the average fall of a winter's rain is 

 seldom more than T \j of an inch an hour. 



The amount of snow for the twenty-five years is in- 

 cluded in the above table. 



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