CLIMATIC CONDITIONS OF THE UNITED STATES. 



345 



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, 1918, and normal 

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

 Continued. 



Station. 



California : 



Eureka 



Fresno 



Independence 



Los Angeles 



Red Bluff 



Sacramento 



San Diego 



San Francisco 



San Luis Obispo . . . 

 Colorado : 



Denver 



Durango 



Grand Junction. . . . 



Pueblo 



Connecticut: 



Hartford 



New Haven 



Florida: 



Jacksonville 



Jupiter 



Key West 



Pensacola 



Tampa 



Georgia: 



Atlanta 



Augusta 



Savannah 



Thomasville 



Idaho: 



Boise 



Pocatello ^. . . . 



Illinois : 



Cairo 



Chicago 



Peoria 



Springfield 



Indiana: Indianapolis. 

 Iowa: 



Charles City 



Davenport 



Des Moines 



Dubuque 



Keokuk 



Sioux City 



Kansas: 



Concordia 



Dodge Citj'^ 



Wichita 



Kentucky : 



Lexington 



Louisville 



Louisiana: 



New Orleans 



Mean relative humidity. 



Annual. 



p. ct. 

 86.8 

 57.2 



29.7 



71.7 

 48.1 

 66.7 

 74.8 

 79.9 

 69.0 



48.7 



48.1 



75.9 



79.5 

 SO. 5 

 77.1 

 78.3 

 80.5 



72.1 

 73.4 



78.5 



56.7 



74.2 



74.8 



71.4 

 69.2 



72.6 

 71.1 

 75.0 

 72.0 

 69.0 



68.6 

 66.9 



67.7 



70.1 



67.5 



77.3 



For period 



of average 



frostless 



season. 



p. ct. 

 87.5 

 48.9 

 22.6 

 72.2 

 49.9 

 62.8 



80.0 

 69.9 



46.7 



45.8 



77.6 



76.8 

 80.5 

 77.1 

 77.6 

 80.4 



71.0 



73.8 

 79.0 



45.6 



73.5 

 71.1 



69.0 

 65.6 



68.5 

 68.5 

 70.7 

 64.5 

 65.3 



66.3 

 62.9 

 66.0 



69.0 

 65.6 



75.9 



For June, 



July, and 



August 



1908. 



p. ct. 

 89 

 30 

 30 

 74 

 36 

 55 

 73 

 83 

 77 



54 

 53 

 36 



47 



77 

 72 



85 



84 



77 



80 



76 

 79 



81 

 82 



42 



47 



74 

 71 

 72 

 65 

 63 



77 

 71 

 71 

 70 

 72 



74 

 69 

 71 



64 

 80 



Mean vapor-pressure 

 of water. 



Annual. 



inch. 

 .325 

 .271 



.367 

 .281 

 .324 

 .399 

 .340 

 .314 



.185 



,177 



For period 



of average 



frostless 



season. 



inch. 

 .348 

 .279 



.378 

 .296 

 .347 



.348 

 .335 



.285 



.274 



.298 



.551 

 .664 

 .707 

 .549 

 .592 



.396 

 .450 

 .514 



.209 



.390 



.286 



.311 

 .310 



.447 



.604 

 .692 

 .707 

 .610 

 .612 



.503 

 .565 

 .600 



.262 



.534 

 .423 



.464 



.448 



.290 

 .285 

 .275 

 .313 



.298 

 .284 

 .321 



.328 

 .340 



.545 



.452 

 .450 

 .432 

 .458 



.463 

 .431 

 .466 



.466 

 .476 



.585 



