092 



MR ROBERT COCK BURN MOBSMAN ON 



8-6 





2nd 



„ 2-5 



)> 



23rd 



6-5 



M 



9th 



„ 1-9 



j) 



13th 



7-6 



>) 



21st 



„ 3-4 



» 



12th 



8-8 





24th 



„ 2-3 



)> 



3rd 



9-0 





4th 



„ 3-6 



>> 



20th 



10-3 



ti 



5th 



„ 5-1 



ii 



4th 



13-4 





3rd 



4-2 



>) 



23rd 



12-7 





17th 



„ 3-2 



)> 



16th 



10-9 



>j 



20th 



„ 3-6 



»> 



2nd 



11-3 



jj 



5th 



„ 3-1 



>> 



11th 



10-7 





9th 



„ 3-8 



)> 



25th 



logical Society the rain values from the various stations reporting to that body have 

 been employed, the period being from 1857 to 1895 inclusive. 



The following table shows the least and greatest rainfalls in every month : — 



ins. ins. 



In January the sums vary from 8*4 on the 26th to 2*6 on the 3rd 

 „ February 

 ,, March 

 „ April 

 „ May 

 „ June 

 ii July 

 „ August 

 „ September 

 ,, October 

 „ November 

 „ December 



It will be seen that the wettest day of the year is August 3, with a fall of 13*4 

 inches ; the next in order being August 13 and 14. The day in the year with the 

 smallest downfall is March 13, with 1*9 inch, the next driest being May 3 and February 

 23. By far the wettest period is that embraced in the seven days ending with August 

 18, the period distinguished by the least fall being the week ending with March 27. 

 The totals for these two weeks are respectively 77"53 and 24'04 inches. Great differences 

 are observable in the sums of consecutive days, the fall on August 3, for example, being 

 13 "4 inches, but on August 2 only 5-"2 inches fell. It is thus evident that a very long 

 period indeed is required to give daily mean rainfalls ; probably observations extending 

 over two centuries would be necessary to define the daily fall with accuracy. 



Table XIX., giving the number of times a rainfall of 0*01 inch was registered in 

 each day of the year during eighty-eight years, must be regarded in the light of a tolerable 

 approximation to the truth, it being quite evident that many of the older observers 

 systematically neglected to measure slight rainfalls, but allowed several small amounts 

 to accumulate. Every effort has been made to detect and throw out such erroneous 

 entries, but a number must obviously remain. 



The number of rainy days in every month on the total of eighty-eight years vary as 

 follows : — 





Greatest. 



Date. 



Least. 



Date. 



January, ..... 



46 



29 



28 



14 



February, 









48 



2 



33 



5, 20 



March, 









45 



6 



25 



8 



April, . 









43 



22 



27 



9 



May, . 









45 



17, 28 



28 



15 



June, . 









47 



24 



27 



1 



July, . 









47 



19 



34 



17 



August, 









55 



13 



34 



19, 21 



September, 









49 



21 



33 



16, 18 



October, 









55 



10 



36 



27 



November, 









55 



5 



32 



11 



December, 









49 



22 



29 



24 



