188 



ENVIRONMENTAL CONDITIONS. 



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

 United States. (Plate 34.) — Continued. 



Station. 



South Carolina — Continued: 



Walhalla (86) 



Winthrop College (87) . . 



Yemassee (88) 



South Dakota: 



Aberdeen (34) 



Academy (34) 



Alexandria (34) 



Ashcrof t (33) 



Bowdle (34) 



Brookings (34) 



Cherry Creek (H) 



Clark (34) 



Fort Meade (33) 



Gary (55) 



Greenwood (34) 



Highmore (34) 



Hotch City (H) 



Huron (34) 



Kennebec (34) 



Kimball (H) 



Leslie (33) 



Little Eagle (33) 



Menno (34) 



Milbank (34) 



Oelrichs (33) 



Pierre (33) 



Rapid City (33) 



Redfield (H) 



Rosebud (33) 



Sioux Falls (34) 



Spearfish (33) 



Tyndall (H) 



Yankton (34) 



Tennessee: 



Benton (78) 



Bolivar (77) 



Byrdstown (H) 



Carthage (77) 



Chattanooga (78) 



Clarksville (77) 



Decatur (78) 



Elizabethton (H) 



Erasmus (78) 



Florence (77) 



Greeneville (78) 



Hohenwald (77) 



Jackson (77) 



Johnsonville (77) 



Knoxville (78) 



Lynnville (77) 



Memphis (77) 



Mountain City (78) 



Nashville (77) 



Newport (H) 



Rogersville (78) 



Altitude. 



feet. 



1,061 



690 



22 



1,300 



1,352 

 3,192 

 1,995 

 1,636 



3,624 

 1,484 



1,890 



1,306 

 1,689 



1,788 



1,325 

 1,148 

 3,339 

 1,572 

 3,251 

 1,295 

 2,600 

 1,400 

 3,647 

 1,418 

 1,234 



880 

 450 



1,026 

 600 

 808 

 620 

 860 



1,532 



1,850 

 560 



1,581 

 983 

 450 

 364 

 977 

 770 

 409 



2,486 

 673 



1,280 



1,160 



No. of 

 years of 

 record. 



14 



9 



13 



18 

 10 

 20 

 16 

 14 

 19 



13 

 24 

 12 

 14 

 13 



27 

 16 



10 

 7 

 12 

 17 

 18 

 17 

 21 



14 



18 

 18 



33 



15 

 14 



13 

 30 

 15 

 13 



12 

 10 

 14 

 14 

 10 

 13 

 38 

 10 

 38 

 11 

 38 



16 



Average date of — 



Last frost 

 in spring. 



Apr. 

 Apr. 



May 21 



May 5 



May 15 



May 24 



May 20 



May 22 



May 25 



May 25 



May 7 



May 19 



Apr. 27 



May 16 



May 16 



May 12 



May 13 



May 6 



May 18 



May 26 



May 18 



May 14 



May 10 



Apr. 30 



May 6 



May 21 



May 10 



May 12 



May 9 



May 6 



May 2 



Apr. 17 



Apr. 2 



Apr. 11 



Apr. 7 



2 

 10 



Apr. 17 



Apr. 22 



Apr. 21 



Apr. 10 



Apr. 19 



Apr. 19 



Apr. 4 



Apr. 10 



Apr. 3 



Apr. 8 



Mar. 21 



Apr. 28 



Apr. 2 



Apr. 12 



Apr. 17 



First frost 

 in autumn. 



Apr. 8 Nov. 

 Mar. 28 

 Mar. 25 



1 



Nov. 5 

 Nov. 11 



Oct. 

 Oct. 

 Oct. 



Oct. 

 Oct. 

 Oct. 



Sept. 18 



Sept. 28 



Sept. 24 



Sept. 14 



Sept. 23 



Sept. 18 



Sept. 20 



Sept. 24 



Sept. 23 



Sept. 26 



Oct. 1 



Sept. 24 



Sept. 20 



Sept. 20 



Sept. 25 



Sept. 27 



Sept. 21 



Sept. 22 



Sept. 25 



Sept. 23 



Sept. 23 



Sept. 30 



Sept. 26 



Sept. 18 



Sept. 26 



Sept. 19 



Sept. 27 



Sept. 23 



Oct. 3 



Oct. 19 



Oct. 28 



20 

 24 

 26 



Oct. 28 



Oct. 23 



Oct. 21 



Oct. 15 



21 



19 



9 



Oct. 30 



Oct. 20 



Oct. 28 



Oct. 20 



Oct. 31 



Oct. 15 



Oct. 26 



Oct. 30 



Oct. 19 



Length of 

 average 

 frostless 

 season. 



days. 

 207 

 222 

 231 



120 

 146 

 132 

 113 

 126 

 119 

 118 

 122 

 139 

 128 

 157 

 131 

 127 

 131 

 136 

 144 

 126 

 120 

 130 

 132 

 136 

 163 

 143 

 120 

 138 

 130 

 141 

 140 

 164 



186 



209 



192 



200 



207 



201 



189 



182 



177 



194 



183 



173 



209 



193 



208 



196- 



224 



170 



207 



201 



185 



