160 



THE RAINFALL OF GUERNSEY. 



Before proceeding to discuss previous years and their 

 influence on the subterranean water stocks, I wish to draw 

 attention to the distribution of rain during the year, both as 

 regards the averages and the results for 1902. 



Out of the average yearly rainfall of 36*52 inches, 22*28 

 inches fall in the months October to March inclusive. It is 

 these winter falls that are important because the natural 

 evaporation carries away from the surface of the soil, from 

 April to September inclusive, a greater quantity than falls. 

 Now in recent years we have had a series of dry years, during 

 which the winter falls have been much diminished, so much so 

 in fact, that the average of the winter falls has been reduced 

 from 22-92 inches to 22*28 inches. The table will show the 

 detail. 



TABLE V. 

 WET AND DEY YEAES AND WINTEK FALLS 



For the last 20 Y 



ears, showing their influence on the 



Averages. 





Quantity 



—Inches. 



Compared with 



the 40 Years' 



Averages. 



| 



CD S 



° u 

 u cS 



&* 



Winter Falls. 





Wet. 



1 Dry. 





Years. 



Above. 



Below. 



inclusive. 





o 



< 



Average 



Falls 



corrected 



every 



5 years. 



1883 



38-00 

 44 V 76 



36-41 

 34-63 



28-74 



0-22 



6 : 98 



l'-37 

 3-15 



9-04 



37-78 



31-36 

 21-27 

 22-86 

 21-14 

 25-17 



22 92 



1884 



1885 





1886 





1887 





1888 



1889 



1890 



1891 



1892 



38 V 09 



37 00 

 33 26 

 34-14 



31-75 



30-99 



32-97 



: 99 



o-io 



3-84 

 2-96 



5-35 



37-10 



24 04 

 20-98 

 18-68 

 16-30 

 22-93 



22-86 



1893 



1894 



1895 



1896 



1897 



40-38 

 37-74 



38-47 



4 ; io 



1-46 

 2 : i9 



5-39 

 3-31 



36-28 



21-34 

 17-71 

 23-29 

 25-39 

 1332 



22-66 



1898 



1899 



1900 



1901 



1902 



37-90 



34 36 

 3434 



27 V 97 

 33-98 



1-12 



.2-42 

 2-44 



8-81 

 2-80 



36-78 



24-75 

 24-79 

 2134 

 15-43 

 13-83 



22-42 



i 





50-98 





I 

 i 



7 



13 



17-06 



36-52 





22-28 



