Nantucket Lightship (fig. 7, table 7)--Sur- 

 face temperatures were below the mean except 

 in late August. This has held true since this 

 progrann started in 1956 and may be attributed 

 to a change in station position for this light- 

 ship. The mean is based on the record from 

 1947 to 1952 when the station was some 8 

 miles WSW of the present position. 



It is unfortunate that the winter observations 

 were too thin during the cold period in Febru- 

 ary to allow comparison with similar cold con- 

 ditions seen in 1957. 



Uj 

 (t 



K 



(t 

 Uj 



a. 



Uj 



70 



60 



50 



40 



30 



SURFACE T. °F. 





 20 

 40 

 60 



Uj 



Uj 



^ 80 



g 



£ 100 

 Q. 



120 

 140 

 160 

 180 

 36.0 



O 



»? 



>. 34.0 



J 32.0 



■>? 



to 



30.0 



<39° 



\ 

 \ 



40° ; \ 



m m\ '■■/]; // 



\ 



\ 



\\\55» \\ 



> ill 



I !i I 



_1_JJ 



1 1 



p; 



<45'' 



BOTTOM S.%< 



SURFACE S.%. 



JAN. 



FEB. 



MAR. 



APR. 



MAY 



JUN. 



JUL. 



AUG. 



SEP. 



OCT. 



NOV. 



DEC. 



Figure 7.--Nantuckel Lightship. (Dashed line in upper diagram mean for period 1947-52.) 



