91 



o 



Monthly and Annual Mean Surface Water Tenperatures, F 



NORFOLK, VIRGINIA 36°5l'N. 76°l8»W, 



Year Jan. Feb. Mar. Apr. Ifay June July Aug. Sept. Oct. Nov. Dec. Ann. 



Elizabeth River at Boston Steamship Co. wharf, 



1873-Oct. 1879, incl., readings at 3 p.m. 

 Nov. 1879-June 1881, incl., readings at 1 p.m. 

 July 1881, etc., readings at 2 p.m. 



Source - USCFF 



