CLIMATIC CONDITIONS OF THE UNITED STATES. 



347 



Table 19.— Normal mean relative humidities, for the year and for the period of the average 

 frostless season, mean relative humidities for the three summer months, 1908, and normal 

 mean vapor-pressures for the year and for ike period of the average frostless season. — 

 Continued. 



Station. 



New York: 



Albany 



Buffalo 



New York 



Oswego 



Rochester .... 

 North Carolina: 



Asheville 



Charlotte .... 



Hatteras 



Kittyhawk . . . 



Raleigh 



Wilmington. . 

 North Dakota: 



Bismarck. . . . 



Devils Lake. . 



Williston 



Ohio: 



Cincinnati 



Cleveland. . . . 



Columbus. . . . 



Sandusky . . . . 



Toledo 



Oklahoma: 



Oklahoma . . . 

 Oregon: 



Baker City . . . 



Portland 



Roseburg 



Pennsylvania : 



Erie 



Harrisburg . . . 



Philadelphia . 



Pittsburgh . . . 



Scranton 



Rhode Island: 



Block Island. 



Providence . . . 

 South Carolina: 



Charleston . . . 



Columbia. . . , 

 South Dakota: 



Huron 



Pierre 



Rapid City,. 



Yankton .... 

 Tennessee : 



Chattanooga . 



Knoxville . . . 



Memphis 



Nashville. . . 

 Texas : 



Abilene 



Mean relative humidity. 



Annual. 



p. ct. 

 76.2 

 73.4 

 73.2 

 75.8 

 73.4 



71.1 

 82.9 

 80.7 

 73.8 

 80.1 



69.9 



68.8 



69.0 

 72.9 

 72.6 

 74.4 

 73.9 



69.8 



60.7 

 75.5 

 74.6 



75.5 

 73.5 

 70.3 



72.2 



81.2 



78.0 



70.2 

 64.7 

 59.8 

 70.4 



72.7 

 73.7 

 71.8 

 70.7 



63.9 



For period 



of average 



frostless 



season. 



p. ct. 

 74.0 

 71.6 

 73.3 

 73.4 

 70.4 



71.3 



82.7 



74.6 

 80.9 



65.8 



59.7 



65.8 

 70.9 

 68.9 

 69.7 

 69.9 



68.7 



49.3 

 71.4 



72.6 

 72.0 

 69.8 

 69.3 



84.0 



78.2 



65.2 

 57.6 

 63.2 

 67.8 



72.8 

 73.7 

 71.3 

 69.1 



62.6 



For June, 



July, and 



August 



1908. 



Mean vapor-pressure 

 of water. 



p. ct. 

 68 

 72 

 69 

 72 

 67 



85 

 78 

 86 



Annual. 



78 

 82 



64 

 65 

 60 



60 

 68 

 66 



67 



75 



54 

 67 

 63 



66 



69 

 67 

 65 

 66 



85 

 76 



80 

 76 



75 

 60 

 61 



72 

 75 

 76 

 74 



65 



inch. 

 .284 

 .271 

 .314 

 .270 

 .267 



.382 

 .484 



For period 



of average 



frostless 



season. 



inch. 

 .405 

 .414 

 .433 

 .408 

 .410 



.500 

 .573 



.394 

 .471 



.206 



!l84' 



.325 

 .290 

 .305 

 .294 

 .290 



.361 



.173 

 .293 

 .282 



.286 



.527 



.588 



.377 



.322 

 .312 



.320 



.511 



.334 



.459 

 .414 

 .442 

 .423 

 .440 



.494 



.236 

 .329 

 .323 



.416 



.450 

 .455 



.428 



.586 



.229 

 .219 

 ,197 

 .262 



.391 

 .374 

 .417 

 .379 



.369 



.415 

 .370 

 .322 

 .454 



.520 

 .505 

 .645 

 .613 



.456 



