56 REPORT. OF COMMISSIONER OF FISH AND FISHERIES. 
the northern current that sweeps around the outside of Cape Cod and 
No Man’s Land and into Fisher’s Sound, the temperature inshore ranges 
from 61° to 70°; more offshore, it ranges from 60° to 64°. But in the 
colder water about Cox’s Ledge and off Block Island and in certain 
parts of Fisher’s Sound, it ranges from 45° to about 50°. 
At Portland there is quite a different condition. The maximum tem- 
perature was observed inside of Casco Bay, where the range was from 
57° to 65°, and outside from 50° to 59°, The bottom temperatures dur- 
ing the summer inshore were from 54° to 56°, and in the deeper waters * 
of Casco Bay from 45° to 49°. Farther east and in the Bay of Fundy 
stilllower degrees are shown. 
The following table of temperatures actually observed along the coast 
at different times of year will be of interest. It is compiled from ob. 
servations made by the U.S. Signal Service as a matter of special co- 
operation with the work of the U. 8. Fish Commission. 
Absolute highest and lowest temperature of water at the bottom at 3 p. m. during the year 
ending February 28, 1877. 















Spring. Summer. 
Place of observation. | Highest. Lowest. Highest. Lowest. 
= bi : 
Date. | Temp.| Date. |Temp.| Date. | Temp.| Date. | Temp. 
Trdianola, Pex. .5-5252-.-° | Apr. 23 | 78.0 | Mar. 21 570.0") fs aes lees Se 
Galveston, Tex ........-.-- Apr. 30 | 79.0 | Apr. 2 G20,0\ |. amas a as |~ aise eon eee 
PUBS ANA peas anae sien’: May 4] 68.0 | Mar. 22 54.0 | July 20 88.0 | June-10 79.0 
Punta Rassa, Fla ....-...-.-. May 22] 87.0 | Mar. 21 67.0 | July 17 93.0 | July 31 79.5 
Key West, 1 eee May 3) 84.8 | May 24 57.0 | June 24 90.0 | Aug. 22 76.6 
fermi, 1 Ee as May 22} 84.0 | Mar. 21 62.0 | July 14 90.0 | June i2 81.0 
Savannah, PN) DE ORG May 30| 73.0 | Mar. 22 53.0 | Aug. 20 86.0 | June 15 69. 0 
Charleston, S.C...--..----- May 30| 177.0 | Mar. 22 54.0 | Aug. 20 88.0 | June 15 75.5 
Wilmington, INC )cente. =|) ay 297) "76./0).| Mar. *3 51.0 | July 19 87.0 | June 10 74.0 
Wat, V8! nonce e cn seana, May 30} 73.5 | Mar. 4 4400) See ole tl) oo pees Aug. 27 70.0 
Baltimore, Md ........----- May 28) 71.0 | Mar. 3 38.0 | July 11 86.0 | June 1 72.0 
New York, N. ¥ -.......-..| May 29| 58.0 | Mar. 1 32.0 | July 20 75.0 | June J 55.0 
New London, Conn ...-....- May 30] 57.0 | Mar. 2 34.5 | Aug. 13 76.0 | June 1 54.0 
Wood’s Holl, Mass..--..... May 28; 57.0 | Mar. 1 30.0 | July 6 76.0 | June 1 58.0 
Portland, Me .......--..... May 30} 50.0 | Mar. 1 31.5! Aug. 15 64.0 | June 6 49.5 
Eastport, Me ........-..... May 31] 40.5 | Mar. 18] 31.0] Aug. 15] 51.0] June 9 40.0 
Autumn. Winter. 
Place of observation. Highest. Lowest. Highest. Lowest. 

‘Date. | Temp.|. Date. |Temp.| Date. | Temp. | Date. | Temp. 






















TNCIANO I: LOLs oc ccweeses 
Galveston, Tex 
Mobile, Ala..-.-.. Sept. 5 88.0 | Nov. 1 57.0 | Dec. 1 
Punta Rassa, Fla Sept. 2 91.5 | Nov. 26 68.0 | Jan. 23 
Key West, Fla-. Sept. 1 89.0 | Nov. 11 65.0 | Dec. 24 
Jacksonville, Fla Sept. 2 89.0 | Nov. 11 64.0 | Jan. 29 
Savannah, Ga. - Sept. 2 87.0:-| Nov. 27 52.0 | Jan. 21 
Charleston, 8. C. Sept. 3 84.0 | Noy. 26 55.0] Feb. 3 
Wilmington, N. Cc Sept. 1 83.0 | Nov. 29 51.0 | Jan. 22 
Norfolk, ? Sept. 1 80.0 | Nov. 29 46.5 | Dec. 1 
Baltimore, a. Sept. 1 78.0 | Nov. 80 45.0 | Dec. 1 
New York, N.Y - Sept. 1 72.0 | Nov. 30 39.0 | Dec. 1 
New London, Conn Sept. 1 72.0 | Nov. 30 46.5! Dee. 1 
‘Wood's Holl, Mass. Sept. 1 70.0 | Nov. 30 39.0 | Dec. 1 
Portland, Me ...... -| Sept. 2 58.0 | Nov. 26 41.0] Dec. 6 
Eastport, Me . -| Sept. 29 51.5 | Nov. 26] 43.5] Dec. 1 
¥ 
