192 



ENVIRONMENTAL CONDITIONS. 



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

 United States. (Plate 34.) — Continued. 



Station. 



Virginia — Continusd: 



Salem (92) 



Saxe (92) 



Shenandoah (93) 



Spottsville (92) 



Stanardsville (93) 



Staunton (93) 



Stephens City (94) . . . 



Sunbeam (92) 



Warsaw (93) 



West Brook (93) 



Williamsburg (93) .... 



Woodstock (94) 



Wytheville (74) 



Washington : 



Aberdeen (19) 



Bellingham (19) 



Centralia (19) 



Clearwater (19) 



Cle Elum (20) 



Colfax (20) 



Colville (20) 



Conconully (20) 



Coupeville (19) 



Crescent (20) 



Ellensburg (20) 



Kennewick (20) 



La Center (19) 



Lakeside (20) 



Lester (19) 



Lyle (20) 



Moxee (20) 



North Head (19) 



Olga (19) 



Olympia (19) 



Pomeroy (H) 



Republic (20) 



Rosalia (20) 



Seattle (19) 



Snohomish (H) 



Snoqualmie Falls (19) . 



Spokane (20) 



Sunnyside (20) 



Tatoosh (H) 



Union City (19) 



Walla Walla (20) 



Waterville (20) 



Wenatchee (n) (20) . . . 



Wilbur (20) 



Zindel (20) 



West Virginia: 



Ben's Run (73) 



Buckhannon (73) 



Burlington (94) 



Central Station (73) . . 



Charleston (74) 



Altitude. 



1 



feet. 

 ,000 



350 



937 

 15 



670 

 ,380 



710 

 60 



200 



No. of 

 years of 

 record. 



74 



927 



i,293 



162 (H) 



212 (H) 



,930 

 ,300 

 ,635 

 ,300 



,250 



,571 



367 



1,116 



1 



600 

 ,000 



50 (H) 



17 (H) 

 ,500 

 ,628 

 ,425 



46 (H) 



50 



,943 



740 



86 



1 



,000 

 ,624 

 ,169 

 ,203 

 715 



622 

 ,472 

 875 

 953 

 598 



9 



8 



3 



17 



12 



17 



14 



6 



16 



4 



8 



11 



15 



10 



10 



9 



9 



9 



13 



9 



9 



9 



9 



15 



7 



10 



16 



5 



16 



16 



6 



10 



10 



8 

 9 



18 



8 



28 



9 



8 

 23 

 16 



9 



7 



8 

 16 



11 

 6 



Average date of — 



Last frost 

 in spring. 



Apr. 10 



Apr. 14 



Apr. 29 



Apr. 17 



Apr. 12 



Apr. 25 



Apr. 21 



Apr. 11 



Apr. 15. 



Apr. 15 



Apr. 9 



Apr. 22 



Apr. 18 



Apr. 27 



Apr. 22 



May 6 



Apr. 27 



June 9 



May 25 



June 5 



May 18 



Apr. 9 



May 23 



May 23 



Apr. 28 



Apr. 20 



Apr. 10 



May 18 



Apr. 23 



May 23 



Feb. 9 



Mar. 27 



Apr. 28 



Apr. 26 



June 15 



June 1 



May 21 



Apr. 21 



May 9 



Mar. 26 

 May . 7 



Mar. 13 



Apr. 27 



Apr. 1 



May 31 



Apr. 30 



June 23 



Apr. 14 



Apr. 24 



Apr. 27 



May 7 



May 10 



Apr. 24 



First frost 

 in autumn, 



Oct. 17 

 Oct. 21 



Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 



Oct. 

 Dec. 

 Oct. 

 Nov. 



Oct. 

 Oct. 

 Oct. 

 Oct. 

 Oct. 



9 

 16 

 25 

 12 

 14 

 31 



Oct. 22 



Oct. 20 



Oct. 26 



Oct. 7 



Oct. 10 



Oct. 22 



Oct. 21 



Oct. 14 



Nov. 7 



Sept. 7 



Sept. 10 



Sept. 7 



Sept. 21 



Nov. 8 



Sept. 22 



Sept. 21 



Oct. 15 



Oct. 25 



Oct. 19 



Sept. 13 



Oct. 18 



Sept. 21 



Dec. 22 



Nov. 21 



Nov. 2 



Sept. 28 



Sept. 3 



Sept. 14 



Nov. 22 



Oct. 21 



Oct. 24 



Oct. 14 



8 



9 



27 



3 



Sept. 20 



Oct. 21 



Sept. 6 



Oct. 29 



16 

 6 

 2 

 7 



19 



Length of 

 average 

 frostless 

 season. 



days. 

 190 

 190 

 163 

 182 

 196 

 170 

 176 

 203 

 190 

 188 

 200 

 168 

 175 



178 

 182 

 161 

 194 



90 

 108 



94 

 126 

 213 

 122 

 121 

 170 

 188 

 192 

 118 

 178 

 121 

 316 

 239 

 188 

 155 



80 

 105 

 246 

 183 

 168 

 202 

 154 

 271 

 183 

 216 

 112 

 174 



75 

 198 



175 

 162 



148 

 150 



178 



