286 



THE RAINFALL OF GUERNSEY. 



Last year I divided the stations into high and low levels. 

 It is hardly necessary to continue this plan, but I would draw 

 attention to the fact that the results thus brought out last year 

 are confirmed this, for the two highest elevations give an 

 average fall of 33*61 inches, whilst the station of the north- 

 west coast and also of low elevation give 27*57 inches, a 

 difference of 6*04 inches. If this were due to low elevation it 

 would be against the experience of the world ; we, therefore, 

 have to look for another cause of the difference. As I hinted 

 last year I believe it to be due to the influence of the high 

 land, which causes a heavier fall on the lee side. As the 

 winds which prevail in wet weather are south-west, it follows 

 that the east coast is on the lee side and therefore has a 

 greater rainfall. 



TABLE II. 



Monthly Totals at Halteville, St. Peter-Port ; Claire Mare, St. Peter- 

 in-the-Wood ; Les Blanches, St. Martin's ; L'Ancresse, Vale, and 

 Mont Saint, St. Saviour's. 



Months. 



ce o «s 



January j G"79 



February 2-66 



March i 1*67 



April i 2-26 



May : 4-64 



June ' 1-61 



July ; 0-99 



August I 3-65 



September ! 0*84 



October 4-57 



November 5 36 



December 5*32 



Total ; 34-36 



0-62 

 2-22 

 1*41 

 191 

 3-61 

 1-24 

 0-72 

 3 41 

 0-64 

 2-72 

 5-15 

 3-94 



0-84 

 2-27 

 1*61 

 2-33 

 5-03 

 1-55 

 1-00 

 3-41 

 0-86 

 411 

 4-84 

 5-01 



0-18 

 2-64 

 1-34 

 1-74 

 3-77 

 1*18 

 1*03 

 3-08 

 0-89 

 3-79 

 3-85 

 4-07 



27-59 



32-86 



27-56 



3 53 



0-84 



81 



57 



50 



28 



18 



03 



25 



44 



3-15 



4-96 



4-47 



4-12 



36-76 



In Table III. I give you a list of the differences between 

 the falls at each station and the 56 years' average, with the 

 wet and dry months. 



This table shows that January, February, April, June, 

 July, September and October were dry months for the island, 

 though not for all the Stations. 



The final result is that we are about 2-J- inches below the 

 normal fall, all Stations considered, but as regards my own 

 observations the fall is only 2 inches below. 



