194 



ENVIRONMENTAL CONDITIONS. 



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

 United States. (Plate 34.) — Continued. 



Station. 



Wisconsin — Continued: 



Meadow Valley (59) 



Medford (59) 



Milwaukee (60) 



Neillsville (59) 



New London (60) 



Oconto (60) 



Osceola (58) 



Oshkosh (60) 



Pine River (60) 



Portage (59) 



Port Washington (60) 



Prairie du Chien (59) 



Prentice (59) 



Racine (60) 



Shawano (60) 



Sheboygan (60) 



Spooner (58) 



Stevens Point (59) 



Valley Junction (59) 



Viroqua (59) 



Washburn (H) 



Watertown (60) 



Waukesha (60) 



Waupaca (60) 



Wausau (59) 



Weyerhauser (58) 



Whitehall (58) 



Wyoming : 



Alcova-Pathfinder (24) . . . 



Basin (25) 



Buffalo (25) ; . 



Cheyenne (24) 



Chugwater (24) 



Clark (25) 



Eaton's Ranch (25) 



Fort Laramie (24) 



Gillette (25) 



Griggs (25) 



Hyattsville (25) 



Kirtley (24) 



Lander (25) 



Laramie (24) 



Lusk (24) 



Moorcroft (25) 



Moore (24) 



Newcastle (25) 



Phillips (24) 



Pine Bluff (24) , 



Rawlins (24) 



Sheridan (25) 



Shoshone Dam (25) 



Thermopolis (25) 



Wheatland (24) 



Wyncote (24) 



Altitude. 



feet. 

 974 



1,420 

 681 

 996 

 762 

 590 

 806 

 744 

 900 

 809 

 713 

 690 



1,551 

 633 

 796 

 831 



1,104 



1,113 

 930 



1,412 

 653 

 824 

 864 

 857 



1,212 



1,297 

 675 



5,366 

 3,862 

 4,900 

 6,088 

 5,282 

 4,320 

 4,600 

 4,270 

 4,546 

 4,700 



5,000 

 5,372 

 7,188 

 5,007 

 4,211 

 6,000 

 4,319 

 4,900 

 5,038 

 6,744 

 3,790 

 5,385 

 4,350 

 4,741 

 4,207 



No. of 

 years of 

 record. 



19 

 19 

 39 

 21 

 14 

 19 

 19 

 19 

 15 

 14 

 16 

 22 

 11 

 13 

 13 

 12 

 13 

 17 

 18 

 19 



18 

 14 

 13 

 14 



7 

 17 



11 



38 

 9 



15 



15 

 16 



7 

 8 

 6 



Average date of- 



Last frost 

 in spring. 



9 

 3 



6 



27 

 6 



28 



May 21 



June 3 



Apr. 28 



May 23 



May 14 



May 10 



May 12 



May 7 



May 13 



May 3 

 May 

 Apr. 

 June 

 Apr. 



May 14 



May 8 



May 24 



May 25 



May 16 



Apr. 30 



May 16 



Apr. 27 



Apr. 28 



May 20 



May 30 



May 30 



May 6 



May 21 



May 10 



May 28 



May 21 



June 1 



May 4 



May 16 



May 15 



May 23 



May 31 



May 19 



May 29 



May 26 



May 30 



May 25 



May 23 



May 26 



May 22 



May 25 



May 27 



June 3 



May 21 



May 26 



May 8 



May 11 



May 21 



First frost 

 in autumn, 



Sept. 23 



Sept. 12 



Oct. 7 



Sept. 20 



Sept. 27 



Oct. 2 



Sept. 26 



Sept. 30 



Sept. 28 



Oct. 4 



Oct. 12 



Oct. 12 



Sept. 9 



Oct. 13 



Sept. 26 



Oct. 11 



Sept. 14 



Sept. 26 



Sept. 24 



Oct. 5 



Oct. 12 



Oct. 11 



Oct. 12 



Sept. 27 



Sept. 22 



Sept. 12 



Oct. 4 



Sept. 19 



Sept. 20 



Sept. 21 



Sept. 17 



Sept. 15 



Oct. 14 



Oct. 5 



Sept. 20 



Oct. 4 



Sept. 8 



Sept. 21 



Sept. 17 



Sept. 11 



Sept. 16 



Sept. 13 



Sept. 20 



Sept. 14 



Sept. 20 



Sept. 17 



Sept. 19 



Sept. 13 



Sept. 24 



Sept. 21 



Sept. 13 



Sept. 24 



Oct. 2 



Length of 

 average 

 frostless 

 season. 



days. 

 125 

 101 

 162 

 120 

 136 

 145 

 137 

 146 

 138 

 154 

 159 

 168 

 95 

 168 

 135 

 156 

 113 

 124 

 131 

 158 

 149 

 167 

 167 

 130 

 115 

 105 

 151 



121 

 133 

 116 

 119 

 106 

 163 

 142 

 128 

 134 

 100 

 125 

 111 

 108 

 109 

 111 

 120 

 111 

 121 

 115 

 115 

 102 

 126 

 118 

 128 

 136 

 134 



