484 



EEPOKT — 1891. 



September 

 October 

 November 

 December 



NiTH 



Dee 



Air 



Water 



Air 



Water 



1890 



rWind, W. and S.W. 

 \ Rainfall, average. 

 /Mostly W., S.W., and N.W. 

 l^ Rainfall, under average. 

 I Wind, S.E., S.W., and N.W. 

 \ Rainfall, 8-23 inches. 

 f Wind, N. and E. 

 \ Very dry and cold. 



1891 



/Wind, N.W. and S.W. \ 



\ Rainfall, under average. J 



/ Mostly W., S.W., and N.W. 1 



\ Rainfall, 023 inch— fine. J 



r Mostly N., N.E., and N.W. 1 



{ Rainfall, under average. / 



t Mostly E. and N.E. I 



I Rainfall, under average. / 



r Mostly E., N.E., and N.W. 1 



\ Rainfall, nearly average. J 



/ Blostly N.E. and S.W. '. 



\ Rainfall, under average. / 



/Mostly S.W., N.W., and W. \ 



l^ Rainfall, half average. J 



/ Mostly S.W. and N.E. "I 



\ Rainfall, double average. J 



59-4 

 49-5 

 43-9 

 36-9 



Means for Year. 



In the autumn quarter (September, October, and November) the 

 diflPerence of temperature between the air and water was, for the Nith 

 '3°-8 ; Dee 4°-5. Winter quarter (December, January, and February), 

 Nith' 2°-5 ; Dee 4°-7. Spring quarter (March, April, and May), Nith 

 3°-2 ; Dee 3°-G. Summer quarter (June, July, and August), Nith 2°-4 ; 

 Dee 'l°'6. Though as a rule the temperature of the air was higher than 

 that of the water, there were many single days on which an opposite 

 state of things occurred, and these were chiefly in the winter and summer 

 quarters In the month of December, for example, when dull and foggy 

 weather prevailed, with cold northerly winds, or when severe frost was 

 experienced, there were twelve days on which the temperature ot the 

 water was in excess of that of the air, the accumulated excess amounting 

 to over 40°, and ranging from 0°-3 to Q°-Q. In the month of July again 

 there were ten days which showed a similar result, the accumulated 



