Nantucket Shoals Lightship (fig. 5^ table 5) 



At Nantucket Shoals surface temperature was subnormal most of 

 the year. The difference in temperature trend between this observation 

 post and those mentioned above are associated with local differences in 

 air temperature. Water temperature record highs were reached in mid- 

 July and mid-August. There were new record lows in 11 decads, 8 of 

 which were in spring. 



Although bottom temperatures from earlier years are scarce, 

 the data for 1965 indicate a cold year. 



Surface salinity was near normal for most decads of the year, 

 The observed extremes were 32.18 °/oo in mid-July and 32,83 *^/oo in 

 early November. In the averages for previous years the range is from 

 32.28 °/oo in late August to 32.93 °/oo in late March. 





5 



Figure 5. --Nantucket Shoals Lightship, 1965. (The dashed line in the 

 upper diagram is the mean for 1956-64.) 



37 



