170 



ENVIRONMENTAL CONDITIONS. 



Table 2. — Frost data and length of average frostless season for 1803 stations in the 

 United States. (Plate 34.) — Continued. 



Station. 



Indiana — Continued: 



Connersville (H) . . . 



Delphi (67) 



Evansville (68) 



Farmersburg (68) . . 



Farmland (67) 



Fort Wayne (67) . . . 



Greenfield (68) 



Greensburg (68) . . . . 



Hammond (67) 



Huntington (67) 



Indianapolis (68) . . . 



Jeffersonville (68) . . 



Kokomo (67) 



Lafayette (67) 



Laporte (67) 



Logansport (67) . . . . 



Marengo (68) 



Marion (67) 



Mauzy (68) 



Moore's Hill (68) . . . 



Mount Vernon (68) , 



Northfield (67) 



Paoli (68) 



Princeton (68) 



Richmond (68) 



Rockville (68) 



Rome (68) 



Scottsburg (68) 



Seymour (68) 



South Bend (67) . . . , 



Terre Haute (68) . . . 



Veedersburg (67) . . . 



Vevay (68) 



Vincennes (68) 



Washington (68) ... 



Worthington (68) . . , 

 Iowa: 



Algona (54) 



Alta (54) 



Amana (H) 



Atlantic (H) 



Belle Plaine (H) . . . . 



Bonaparte (H) 



Carroll (H) 



Cedar Rapids (54) . . 



Charles City (54) . . . 



Clarinda (54) 



Clinton (H) 



Corning (H) 



Corydon (54) 



Davenport (54) 



Decorah (54) 



Des Moines (54) 



Dubuque (54) 



Elkader (H) 



Altitude. 



feet. 

 844 

 668 

 386 



1,101 

 775 

 905 

 954 

 598 

 741 

 822 

 455 

 840 

 617 

 810 

 620 

 363 

 814 

 980 

 918 

 410 

 900 

 611 

 481 

 972 

 722 

 370 

 570 

 610 

 726 

 498 

 612 

 525 

 431 

 484 

 526 



1,500 

 1,440 



763 

 1,164 



864 



700 

 1,272 



733 

 1,015 

 1,064 (H) 



591 

 1,127 

 1,100 



580 



975 



861 



639 



727 



No. of 

 years of 

 record. 



(H) 



16 

 12 



6 

 16 

 11 



6 

 12 

 16 

 15 

 30 

 18 

 16 

 18 

 12 

 16 

 16 

 18 

 18 



7 

 16 

 13 

 11 

 16 

 12 

 16 



6 

 15 

 15 

 15 

 16 

 10 

 17 

 15 

 12 

 15 



16 

 16 



16 

 17 

 16 



15 

 37 

 15 

 31 

 36 



Average date of — 



Last frost 

 in spring. 



Apr. 27 



May 3 

 Apr, 

 Apr, 



Apr. 25 



May 2 



Apr. 21 



Apr. 22 



Apr. 27 



May 4 



Apr. 16 

 Apr. 

 Apr. 

 Apr. 

 May 



Apr. 24 



Apr. 19 



May 9 



May 2 



May 2 



Apr. 18 



May 3 



Apr. 18 



Apr. 17 



May 7 



Apr. 27 



Apr. 21 



Apr. 16 

 Apr. 

 May 



7 

 22 



16 



26 



26 



1 



19 

 5 



Apr. 19 

 1 

 19 



May 

 Apr. 



Apr. 14 



Apr. 16 



Apr. 22 



Apr. 26 



May 9 



Apr. 23 



May 11 



May 1 



Apr. 20 



May 5 



Apr. 24 



May 16 



Apr. 26 



Apr. 28 



Apr. 26 

 May 

 Apr. 



May 10 



Apr. 22 

 Apr. 

 May 



1 

 22 



First frost 

 in autumn. 



Oct. 3 

 Sept. 30 

 Oct. 27 

 Oct. 18 

 Oct. 10 

 Oct. 9 

 Oct. 16 

 Oct. 16 

 Oct. 15 

 7 

 19 



Oct. 

 Oct. 

 Oct. 18 



Oct. 

 Oct. 

 Oct. 

 Oct. 



20 

 5 



Oct. 

 Oct. 



Oct. 

 Oct. 



Oct. 

 Oct. 



Oct. 

 Oct. 



Oct. 11 

 Oct. 4 



Oct. 20 



Oct. 2 



Oct. 15 



Oct. 17 



Oct. 13 



Oct. 16 



Oct. 13 



Oct. 12 



22 

 5 



Oct. 24 

 Oct. 20 



19 

 24 



Oct. 4 



Sept. 28 



Oct. 6 



Sept. 19 



Oct. 4 



Oct. 7 



Sept. 22 



Oct. 6 



Sept. 26 



Oct. 5 



Oct. 2 



Oct. 2 



Sept. 30 



Oct. 13 



Sept. 26 



Oct. 10 



Oct. 13 



Sept. 23 



Length of 

 average 

 frostless 

 season. 



days. 



159 



150 



203 



179 



168 



160 



178 



177 



171 



156 



186 



185 



158 



162 



157 



166 



175 



148 



165 



159 



185 



152 



180 



183 



149 



163 



175 



183 



177 



150 



186 



157 



188 



189 



186 



185 



161 



142 

 165 

 131 

 156 

 170 

 140 

 165 

 133 

 162 

 157 

 159 

 152 

 174 

 139 

 171 

 176 

 141 



