THE RAINFALL OF GUERNSEY FOR THE 



YEAR 1912. 



BY MR. A. COLLENETTE, F.C.S. 



■0- 



Again we have passed through a year much wetter than the 

 average. 



The year 1910 totalled 46-"16, 1911 fell to 37-"ll, and 

 this year is again up to and over 46 inches. We have had 

 three wet years in succession after 5 dry years. 



The total for the year exceeds the average of 70 years 

 by 9*89 inches. The fall 46'"57 has been exceeded in the 70 

 years four times only, viz. :— 



The total over 40" are more numerous. 



One effect of the excess has been to raise the average 

 from 36 ,y 43 to 36-'62. In the comparisons givnn in this 

 paper the latter figure is used. 



Seven months of the year were wetter than their 

 averages, and one of t these made a record, for August's 

 rainfall totalled over 8" which was 2" in excess of its previous 

 highest quantity. August exceeded its average by 5-"56 

 which is a very large excess. 



Of the dry months April was the driest and narrowly 

 escaped being without rain at all, having less than a 

 quarter of an inch as a total. This was also a record. 



No fewer than eight of the twelve months gave 20, and 

 over, wet days, these eight months contributing together 188 

 out of the 236 wet days of the year. The wet days have 

 exceeded the average by 55. The wetness of the year is well 

 illustrated by the fact that nearly two out of three days were 

 wet. 



The wet months contributed 75% of the year's total. 

 These months usually yield 37% only, hence we see that the 

 rain has fallen in greater quantity in the drier months of the 

 average year. 



The difference between the wettest station, which this 

 year proves to be the Grange, and the driest, is 10*"38. 



in. 



1848 

 1852 

 1860 

 1872 



48- 01 



49- 13 

 48-04 

 56-96 



Gr 



