EAINFALL OF GUERNSEY. 97 



It will be seen by table 7 that the number of wet 

 days has varied in the different stations very considerably, 

 the range being 221 — 183 or 38 days. The table shows, 

 as is to be expected from former experiences, that the 

 south stations and one town station exceed the remainder, but 

 this year the two town stations. Grange and Couture, fall 

 below their proper place. There is also more difference 

 between L'Ancresse and St. Sampson's that we should expect 

 to see. The mean for the whole island works out at 1 99 

 and exceeds the average by 18 or roughly 9""/^. 



DRY AND WET YEARS. 



The reduction in the value of the mean rainfall makes it 

 necessary to restate the number of dry and wet years, 

 because in previous papers all statements made had reference 

 to the 37 inch mean which is now corrected to 36 "5. 



Dry years == 34. Wet years = 29. 



-A verage dry year 32*26 inches. 



Average wet year 41*85 „ 



Wettest vear, 1872 = 56*96 

 Driest ^ „ 1858 = 25*55 



