1935 low 



1936 average 



1937 abnormally high 



1938 high Cp®i'i<^d of high temperatures 

 continuing longer into the autumn 

 than in average years) 



Notes In August of past years „ the farthest north limit 

 of the warm water zone of 20° to 22 temperatures reached its 

 farthest north position in 1933 and in 1937? and was at its 

 most southerly position in 193U° 



16 



