180 Transactions of the South African Philosophical Society. 



TABLE 3. 



Monthly Means of Air Temperature during the Passage 



of a Depression. 





Day Before. 



Day. 



Day After. 



Normal Means. 



January 



February . . . 



May 



June 



July 



August 



September . . . 



October 



November ... 

 December ... 



o 



753 

 76-3 

 68-6 

 64-2 

 54-5 

 51-3 

 51-6 

 57-5 

 62-8 

 68-4 

 72-2 

 76-2 



o 



76-2 

 76-2 

 68-8 

 64-2 

 55-7 

 51-8 

 50-5 

 57-3 

 64-6 

 69-0 

 74-2 

 76-8 



o 



73-6 

 71-9 

 66-2 

 59-0 

 49-8 

 47-5 

 43-6 

 48-1 

 54-3 

 62-3 

 68-1 

 71-2 



o 



74-2 

 74-4 

 69-5 

 63-0 

 54-1 

 49-6 

 48-4 

 54-6 

 62-1 

 65-3 

 71-0 

 74-4 





64-9 



65-4 



59-6 



63-4 



