442 



Results of Makerstoun Observations, 1844. 



Extent op Clouded Sky. 



TABLE XXXVIIL— Daily, Weekly, and Monthly Means of the Estimated Extent of Clouded Sky, 



the whole Sky covered being 10, for 1844. 



Civil 

 Day. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



1 



3-2 



5-2 



6-5 



2-3 



1-1 



8-8 



7-9 



9-7 



[4-2] 



8-5 



8-9 



[8-6] 



2 



3-6 



9-3 



2-9 



9-9 



4-3 



[8-9] 



8-7 



6-3 



0-4 



5 



9-6 



9-9 



3 



9-4 



5-2 



[5-8] 



100 



5-3 



6-9 



8-7 



6-0 



5-6 



5-3 



[9-6] 



9-4 



4 



100 



[5-9] 



6-7 



90 



10-0 



8-0 



7-6 



[8-3] 



6-0 



7-8 



9-9 



3-6 



5 



9-6 



6-3 



3-3 



7-6 



[6-5] 



10-0 



10-0 



8-8 



8-8 



6-8 



9-3 



3-3 



6 



8-3 



3-3 



5-4 



4-2 



7-2 



8-3 



90 



9-5 



100 



[6-7] 



10-0 



2-4 



7 



[8-7] 



6-2 



7-6 



[6-4] 



70 



9-9 



[8-5] 



9.7 



9-5 



1-7 



7-4 



3-8 



8 



9-6 



6-2 



100 



7-3 



5-2 



6-9 



6-0 



8-8 



[7-4] 



8-9 



9-6 



[6-5] 



9 



9-5 



7-6 



6-9 



9-2 



6-7 



[7-2] 



9-4 



7-7 



6-8 



10-0 



9-7 



9-5 



10 



5-5 



3-7 



[6-4] 



1-4 



9-3 



4-5 



8-8 



6-5 



4-9 



6-8 



[8-7] 



100 



11 



4-5 



[6-9] 



6-3 



4-1 



100 



6-6 



6-5 



[8-1] 



4-5 



50 



6-2 



100 



12 



8-1 



7-9 



4-2 



7-3 



[7-7] 



7-0 



8-3 



7^8 



4-7 



7-2 



9-4 



10-0 



13 



2-1 



6-2 



3-7 



7-9 



7-6 



7-2 



8-2 



9-6 



8-1 



[7-2] 



9-8 



8-1 



14 



[4-5] 



100 



7-6 



[7-0] 



8-7 



7-9 



[6-6] 



8-5 



10-0 



7-3 



8-0 



9-8 



15 



21 



7-0 



10-0 



9-5 



3-9 



6-3 



56 



9-8 



[7-2] 



8-4 



7-9 



[9-6] 



16 



5-2 



3-4 



8-5 



5-5 



5-7 



[8-3] 



3-6 



8-6 



3-8 



8-3 



8-6 



10-0 



17 



51 



9-2 



[7-9] 



7-5 



7-3 



8-6 



7-5 



8-8 



9-4 



8-1 



[7-8] 



10-0 



18 



4-3 



[5-6] 



7-4 



7-4 



5-8 



100 



9-9 



[8-3] 



7-5 



7-6 



7-9 



10-0 



19 



7-6 



8-5 



7-7 



9-2 



[6-1] 



9-7 



9-2 



5-9 



7-9 



4-5 



9-5 



4-9 



20 



6-7 



11 



6-4 



9-8 



6-5 



6-1 



5-7 



6-7 



6-0 



[4-9] 



4-8 



1-8 



21 



[5-4] 



4-5 



4-4 



[7-4] 



8-3 



8-6 



[7-1] 



9-8 



5-6 



3-6 



2-6 



8-3 



22 



6-4 



2-3 



9-2 



6-9 



2-8 



7-0 



4-3 



10-0 



[6-8] 



23 



5-6 



[7-5] 



23 



5-4 



6-0 



8-4 



7-9 



3-9 



[8-3] 



4-3 



9-3 



8-9 



3-5 



8-7 



9-9 



24 



2-3 



9-9 



[7-3] 



3-5 



6-1 



8-4 



9-3 



4-8 



6-0 



5-6 



[6-5] 



10-0 



25 



6-6 



[6-9] 



8-7 



9-5 



5-7 



100 



8-8 



[6-2] 



6-6 



9-9 



5-4 



10-0 



26 



3-0 



9-2 



6-6 



5-5 



[6-7] 



9-7 



9-9 



6-8 



9-4 



9-3 



7-0 



10-0 



27 



9-8 



6-5 



6-5 



4-6 



5-4 



9-2 



8-3 



3-2 



6-2 



[8-6] 



10-0 



8-9 



28 



[5-6] 



7-6 



3-5 



[3-8] 



9-3 



8-3 



[8-8] 



2-9 



9-1 



8-4 



10-0 



9-5 



29 



6-1 



10-0 



5-2 



11 



10-0 



9-1 



6-8 



0-2 



[7-7] 



8-5 



9-0 



[8-2] 



30 



4-7 





0-3 



0-8 



9-6 



[8-6] 



91 



5-9 



8-0 



10-0 



9-5 



8-5 



31 



Mean 

 1 



3-5 





[5-2] 





10-0 





100 



7-1 





9-9 





5-4 



6-01 



6-50 



6-30 



6-50 



6-77 



8-12 



7-83 



7-36 



6-95 



6-97 



8-24 



6-96 



Annual Variation of the extent of Clouded Sky. — The sky was least clouded in January, and most clouded 

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



Winter. Dec, Jan., Feb., 6-49. 



Spring. March, April, May, 6-52. 



Year 1844, 



Summer. June, July, Aug., 7 '77. 



Autumn. Sept., Oct., Nov., 7*39. 



=7-04. 



The extent of clouded sky was greatest in summer, and least in winter, of 1 844. 



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



Jan. 



No. of days overcast, 1 



Least daily mean, 2T 



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

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

 riftieth of the sky was covered by clouds. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



2 



2 



1 



4 



3 



2 



1 



2 



2 



3 



9 



11 



0-3 



0-8 



1-1 



4-5 



3-6 



0-2 



0-4 



1-7 



2-6 



1-8 





