RAINFALL IN DORSET. 



199 



41 years' average 1856-96, have been employed in this Report 

 unless where otherwise stated. 



An example worked out for Chalbury will illustrate the 

 process. The adopted annual rainfall is 3l'16in. The observed 

 rainfall in 32 years is 31'64in. 



By multiplying the adopted rainfall by the factors in the last 

 column but one of Table III., the monthly values in column a are 

 obtained. Column I shows the observed rainfall from 1865 to 

 1896 ; and column c the observed annual rainfall distributed 

 proportionally over the several months as in column a. In the final 

 column, d, the monthly ratios have been calculated from column b. 



RAINFALL AT CHALBURY. 



OBSERVERS' NOTES, &c. 



Bloxworth. The heaviest rainfall during any one period of 

 24 hours was on September 4th, l - 91in. In the previous 24 hours 

 i.e., September 3rd 1'lGin. fell, and on September 21st 1'lSin. 

 After the four months' drought, April-July, we expected a heavy 

 crop of after-grass from the rain of August and September, but it 

 was unusually thin and poor. The rain being attended with a 

 very low temperature was probably the cause of this. An unusual 

 absence of thunderstorms this year. 



Bridport Thunderstorms in the afternoon, June 14th. 



Chalbury Rainfall amounted to nearly the average, but very 

 unevenly distributed. Cannot remember so many heavy falls (six 



