Season of 1816* 



193 



Mean temperature of the year, for the last seven years, 

 as deduced from three observations each day, 44.6°. 



Mean temperature for the last seven years, as deduced 

 from the extremes of hefct and cold, each day, 41.9°. 



TABLE III. 



Showing the quantity of rain, and the coldest day in the preced- 

 ing months, for seven years. 



Inches. 15.1 



18.9 



26.4 



31.7 16.4 



This table will enable you to 

 form some idea of our expo- 

 sure to late frosts in spring, and 

 early frosts in autumn. When 

 my thermometer, suspended as 

 15.6 before mentioned, falls to 36°, I 



generally hear of slight frosts in low grounds. When it 

 falls to 34 or 33° in the air, the frost on the ground de- 

 stroys tender vines, &c. I have remarked, that the 

 same degree of cold, immediately after rain, when the 

 earth and vegetables are wet, will not so certainly pro- 

 duce injury, as when the weather is very dry. 



2K 



