THE RAINFALL OF GUERNSEY FOR THE 

 YEAR 1916. 



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



The year has finished with a slight excess over the average 

 of 74 years. The total is 37*0 inches against the average 

 of 36-6. 



The distribution offers some unusual features. The 

 summer months, April to July inclusive, were dry. The 

 deficit of these months collectively was 4*7 in. January was 

 also very dry, contributing less than two inches to the annual 

 total instead of 3*7 in. This year October, which may always 

 be expected to rank as the wettest month, gave only its 

 normal total, and the exceptional place was taken by Feb- 

 ruary, which totalled 6' 6 in. against an average of 2*9 in., an 

 excess of 3*7 in. December also yielded over 6 inches 

 or 2 inches over its normal fall. Thus, it will be seen, 

 although the year is practically a normal one the distribution 

 is very abnormal. In the column 6 of the table 1, the 

 differences are made evident. One third of the rainfall of 

 the year fell during the first three months of the year, but 

 inasmuch as January show, as deficit, it follows that February 

 and March were accountable for that. As a rule October and 

 the two following months occupy this place. As far as wet 

 and dry months are concerned, the year is equally divided, 

 six being dry and six wet. 



Counted from the point of view of wet days, the year 

 ranks as a wet one, for there were 208 instead of 182, a 

 difference of 26 in excess. 



This year the town stations have collected 2% more rain 

 than St. Martin's Road ; Hautnez also has an excess of 2%, 

 while the Rohais is 1% lower. The lowest total is that of 

 Mont Saint, which is under 32 in., a difference of 5 in. 



Only one drought occurred, commencing at all the 

 stations, on the 17th of July lasting 21 days to August 

 the 12th. 



On four separate clays, detailed in the table, falls of one 

 inch and over fell at St. Martin's Road. The other stations 

 all had high amounts but did not all reach the inch each fall. 



