CLIMATIC CONDITIONS OF THE UNITED STATES. 



187 



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

 United States. (Plate 34.) — Continued. 



Station. 



Altitude. 



Oregon — Continued: 



Sparta (18) 



The Dalles (17) 



Umatilla (18) 



Vale (18) 



Warmspring (17) 



Weston (18) 



Pennsylvania: 



Aleppo (96) 



Emporium (97) 



Erie (96) 



Everett (97) 



Franklin (Venango Co.) (96) 



Harrisburg (97) 



Huntingdon (H) 



Lebanon (H) 



LeRoy (97) 



Mauch Chunk (98) 



Philadelphia (98) 



Pittsburg (96) 



Quakertown (H) 



Saegerstown (H) 



Scranton (97) 



Selinsgrove (H) 



South Eaton (H) 



State College (97) 



Westchester (H) 



York (H) 



Rhode Island: 



Block Island (105) 



Kingston (H) 



Narragansett (H) 



Providence (105) 



South Carolina: 



Aiken (87) 



AUendale (86) 



Batesburg (87) 



Beaufort (88) 



BlackvUle (88) 



Charieston (88) 



Cheraw (88) 



Clemson College (87) 



Columbia (87) 



Conway (88) 



Florence (88) 



Georgetown (88) 



Greenville (87) 



Greenwood (86) 



Newberry (87) 



Santue (87) 



Society Hill (H) 



Spartanburg (87) , 



Stateburg (88) 



Summerville (88) 



Trenton (87) 



Trial (88) 



feet. 

 4,150 

 112 

 340 

 3,047 

 1,600 

 1,800 



1,135 



1,050 



713 



1,080 



361 



650 



458 

 1,400 (H) 



634 



117 



842 



536 

 1,116 



455 

 660 

 1,191 

 460 

 385 



26 

 250 



33 

 182 



565 

 186 

 656 



20 

 296 



48 

 144 

 850 

 351 



25 

 136 



12 

 989 

 671 

 502 

 512 

 192 

 875 

 500 



75 

 620 



85 



No. of 

 years of 

 record. 



13 



19 



7 



17 



7 

 19 



21 



24 



18 

 15 

 13 

 20 

 18 

 38 

 20 

 13 

 22 

 10 

 18 

 14 

 14 

 20 

 13 

 15 



14 



27 

 10 

 15 

 20 



Average date of- 



Last frost 

 in spring 



May 13 



Apr. 10 



Apr. 14 



May 30 



May 24 



May 13 



May 9 



May 11 



Apr. 20 



May 5 



May 17 



Apr. 10 



May 1 



Apr. 25 



May 6 



May 3 



Apr. 8 



Apr. 22 



Apr. 20 



May 14 



Apr. 20 



May 8 



Apr. 22 



May 9 



Apr. 23 



Apr. 25 



Apr. 12 



Apr. 26 



Apr. 20 



Apr. 15 



Mar. 11 



Mar. 24 



Mar. 24 



Mar. 9 



Mar. 19 



Mar. 1 



Apr. 5 



Apr. 6 



Mar. 22 



Mar. 26 



Mar. 31 



Mar. 19 



Apr. 8 



Mar. 22 



Apr. 11 



Apr. 3 



Mar. 18 



Mar. 31 



Apr. 2 



Mar. 20 



Mar. 24 



Apr. 4 



First frost 

 in autumn, 



Sept. 28 



Nov. 5 



Oct. 22 



Sept. 9 



Sept. 25 



Sept. 24 



Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 



Length of 

 average 

 frostleaa 

 season. 



7 



7 

 31 



8 

 11 

 23 

 15 

 25 



7 

 11 



Oct. 31 



Oct. 18 



Oct. 20 



Sept. 24 



Oct. 13 



Oct. 1 



Sept. 28 



Oct. 2 



Oct. 26 



Oct. 1 



Nov. 16 



Oct. 17 



Nov. 11 



Oct. 22 



Nov. 18 



Nov. 20 



Nov. 2 



Nov. 23 



Nov. 16 

 Dec. 

 Nov. 

 Oct. 

 Nov. 



Nov. 13 



Nov. 7 



Nov. 13 

 Nov. 

 Nov. 

 Oct. 

 Oct. 



Nov. 15 



Nov. 6 



Nov. 9 



Nov. 17 



Nov. 12 



Nov. 4 



2 



1 



31 



8 



7 



4 



31 



26 



days. 



138 



209 



191 



102 



124 



1.34 



151 

 149 

 194 

 156 

 147 

 196 

 167 

 183 

 154 

 161 

 206 

 179 

 183 

 133 

 176 

 146 

 159 

 146 

 186 

 159 



218 

 174 

 205 

 190 



252 

 241 

 223 

 259 

 242 

 276 

 210 

 209 

 231 

 232 

 221 

 239 

 213 

 227 

 203 

 206 

 242 

 220 

 221 

 242 

 233 

 215 



