144 



CLIMATE. 



we may commence our investigation at York, the central station. 

 By the observations of my late ingenious friend Mr. Jonathan 

 Gray, continued for a quarter of a century from the year 1800, 

 we obtain the following thermometric results : 



Fahr. 

 Mean or average annual temperature . . . 48-2 



Greatest annual temperature observed . . . 50 '8 

 (It occurred in 1800.) 



Least annual temperature observed . . . . 44 '7 

 (It occurred in 1816.) 



Range of mean annual temperature thus ob- 

 tained in 25 years 6 *1 



The mean temperature of springs at York appears to be the 

 same as that of the air, viz. 48, or a little more. This in fact 

 is nearly the mean annual temperature at places not much above 

 the level of the sea along all the eastern side of the kingdom 

 between the basin of the Thames and the valley of the Forth. 



The distribution of temperature in the different months of the 

 year may be next stated. 



January is the coldest and most variable month, being some- 

 * In 1814. t In 1807. 



