76 



Monthly and Annual Mean Surface Water Temperatures, °F 



CAPE CHARLES LIGHTFHIP 37°05'N. 75°41'W. 



Apr. May June July Aug. Sept. Oct. Nov. Dec . Ann. 



59.3 68.4 72.7 74.3 73.6 65.1 53.5 45.8 - 



45.5 55.6 63.6 72.1 75.0 72.4 67.0 57.5 45.4 (56.0) 



47.1 54.1 58.7 69.2 68.4 71.9 65.5 55.4 48.7 (55.0) 

 48.9 56.8 66.0 69.8 72.7 * 



(3) (4) (4) (4) (4) (3) (3) (3) (3) 



47.2 56.4 64.2 71.0 72.6 72.6 65.9 55.5 46.6 56.2 



* On 1 Sept. '28, the lightship was moved abcut 6 miles to the 

 southwest to 36°59'N. 75°42'V*' and the name changed to 

 Chesapeake Lightship. 



Readings at 8 a.m. and 6 p.m. 

 Soixrce - USBF 



