Portland Lightship (fig. 3, table 3)--Awarm 

 June and an abrupt depression in surface 

 temperatures in early July represent the 

 only noteworthy departures from the mean at 

 this station. Minimum bottom values appeared 

 in mid-March, the maximum in late October. 



The surface salinity during February, 

 March, late April, and mid-May were the 

 lowest on record. River runoff in the New 

 England area had been above median during 

 January, February, and April. (U.S. Geological 

 Survey.) 



JAN 



FEB. MAR APR. MAY JUN. JUL. AUG. SEP. OCT. 



Figure 3.— Portland Lightship. (Dashed line in upper diagram mean for period 1950-59.) 



NOV. 



DEC. 



