360 



ENVIRONMENTAL CONDITIONS. 



Table 20. — Average ivind velocities for the year and for the period of the average frostless 

 season, usually from records for the period 1891-1910. 



Station. 



Alabama: 



Birmingham 



Mobile 



Montgomery 



Arizona: 



Flagstaff 



Phoenix 



Yuma 



Arkansas: 



Fort Smith 



Little Rock 



California: 



Eureka 



Fresno 



Los Angeles 



Point Reyes Light. 



Red Bluff 



Sacramento 



San Diego 



San Francisco 



San Luis Obispo . . . 



S. E. Farrallon 



Colorado: 



Denver 



Durango 



Grand Junction . . . 



Pueblo 



Connecticut: 



New Haven 



Florida: 



Jacksonville 



Key West 



Pensacola 



Tampa 



Georgia: 



Atlanta 



Augusta 



Macon 



Savannah 



Thomasville 



Idaho: 



Boise 



Lewiston 



Pocatello 



Illinois: 



Cairo 



Chicago 



Springfield 



Indiana: 



Evansville 



Indianapolis 



a -a 



o ao 



-S > 

 X^ o 



feet. 



48 



106 



112 



57 

 56 



58 



94 

 147 



70 



191 



18 



56 



117 



102 



204 



54 



48 



172 

 56 

 51 

 86 



155 



129 

 53 



183 

 96 



216 



97 



87 



194 



86 

 51 

 54 



93 



310 



91 



82 

 164 



o 

 O 



> 



u 

 P 

 o 



IS. 



miles. 

 7.4 

 7.4 

 6.1 



7.4 

 4.3 

 6.2 



7.6 

 7.3 



6.6 

 5.6 

 4.5 



19.7 

 5.8 

 8.2 

 5.5 

 9.7 

 5.2 



15.9 



7.8 

 5.7 

 5.0 

 7.3 



9.1 



8.2 

 9.7 

 9.9 

 6.7 



o 

 a 





> 



M 

 u 

 > 



O u 



miles. 

 6.7 



7.2 

 5.8 



6.7 

 4.5 



7.0 

 6.7 



6.6 

 6.1 



4.5 



8.2 



8.2 

 9.7 

 9.7 

 6.7 



Station. 



Iowa: 



Charles City 



Davenport 



Des Moines 



Dubuque 



Keokuk 



Sioux City 



Kansas: 



Concordia 



Dodge 



Wichita 



Kentucky: 



Lexington 



Louisville 



Louisiana : 



New Orleans 



Shreveport 



Maine: 



Eastpoit 



Portland 



Maryland : 



Baltimore 



Washington, D. C. 

 Massachusetts : 



Boston 



Nantucket 



Michigan : 



Alpena 



Escanaba 



Detroit 



Grand Haven 



Grand Rapids 



Houghton 



Marquette , 



Port Huron 



Sault Ste. Marie. . 

 Minnesota: 



Duluth 



Moorhead 



St. Paul 



Mississippi: 



Vicksburg 



Missouri : 



Columbia 



Hannibal 



Kansas City 



St. Louis 



Springfield 



Montana: 



Havre 



Helena 





'^ 2 



^ o 



'3 ^ 



W 



feet. 



8 



79 



98 



115 



79 



164 



50 



51 



121 



102 

 132 



121 



74 



85 

 117 



113 



85 



183 

 90 



92 

 60 



258 

 92 



162 



116 



120 



61 



47 



57 



212 



74 



84 

 109 

 181 

 217 

 104 



44 

 56 





c3 



=1 

 CI 

 CI . 



a (-> 



S ^ 



miles. 

 7.4 

 8.2 

 8.3 

 6.6 

 7.5 

 12.2 



7.6 



11.1 



9.3 



10.8 

 7.9 



8.5 

 6.8 



11.0 



8.5 



6.8 

 6.7 



10.8 

 13.8 



10.1 

 9.1 

 11.3 

 11.0 

 10.8 

 7.2 

 10.4 

 11.3 



3 

 O 



u 



p. 



M 

 03 



i) 

 > 

 c3 



S o 



'o 



O Tl 



f.o 



M 

 03 



> 



. "^ 



O u 



miles. 

 6.2 

 7.3 

 7.7 

 6.0 

 6.8 

 11.4 



7.4 

 11.5 



8.8 



9.0 

 6.9 



8.3 

 6.4 



8.7 

 7.8 



6.5 

 6.0 



9.8 

 12.5 



8.8 

 8.4 

 9.9 

 9.3 

 9.5 

 6.8 

 9.3 

 9.7 



