U-2 



Results of Makerstoun Observations, 1844. 



Extent of Clooded Sky. 



TABLE XXXV III.— Daily, Weekly, and Monthly Means of the Estimated Extent of Clouded Sky, 



the whole Sky covered heing 10, for 1844. 



Annual Vm-iation of the extent of Clouded Sky. — The sky was least clouded in January, and must clouded 

 in Novemhcr and June. The means for the meteorological quarters are as follow : — 



Winter. Dec, Jan., Feb., 6-49. Summer. June, July, Aug., 7-77. 



Spring. March, April, May, 6-52. Autumn. Sept., Oct., Nov., 7-39. 



Year 1844, =7-04. 



The extent of clouded sky was greatest in summer, and least in winter, of 1844. 



In the year 1844, on the average of the whole year, seven-tenths of the whole sky was clouded ; tlie mean 

 for the year 1843 (=:6-89) gives nearly the same result. 



The extremes of the daily mean extent of sky clouded are as follow : — 



.Tan. 



No. of days overcast, 1 



Least daily mean, 2-1 



In December 1844, there were nine days during which no sky was visible. There was no day in 1844 

 in which clouds were not obsened, the least observed being upon August 29, during which, on an average, one- 

 tiftieth of the sky was covered by clouds. 



