FOR THE YEAR 1877. 



lix 



EXTENT OF SKY CliOUDED. 



Mean cloudiness of the year 



Most cloudy month 



Greatest monthly mean of cloudiness 



Least cloudy month 



Least monthly mean of cloudiness 



1877. 



0.60 

 Oct., Dec. 

 0.76 

 July. 

 0.43 



of 

 24 years. 



0.61 

 December. 



0.76 



August. 



0.48 



0.66 in '69 '76 



oVsg 



0.29 



0.57 in 1856. 

 0.73 



o'.'so 



WIND. 



RAIN. 



