CLIMATIC CONDITIONS OF THE UNITED STATES. 



165 



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

 United States. (Plate 34.) — Continued. 



Station. 



Altitude. 



No. of 

 years of 

 record. 



Average date of — 



Last frost 

 in spring. 



First frost 

 in autumn. 



Length of 

 average 

 frostlesa 

 season. 



Cali f ornia — Continued: 



Ukiah (16) 



Upper Lake (16) 



Upper Mattole (16) . . 



Valley Springs (14) . . 



Visalia (14) 



Watsonville (14) 



Westpoint (14) 



Willows (15) 



Colorado : 



Blaine (7) 



Boulder (8) 



Canon City (7) 



Castle Rock (8) 



Cedar Edge (9) 



Cheyenne Wells (38) . 



CoUbran (9) 



Colorado Springs (7) , 



Cope (8) 



Delta (9) 



Denver (8) 



Durango (9) 



Fort Collins (8) 



Fort Morgan (8) 



Glen Eyrie (7) 



Grand Junction (9) . . 



Grand Valley (9) 



Greeley (8) 



Hamps (7) 



Hoehne (7) 



Holly (7) 



Holyoke (8) 



Husted (7) 



Lamar (7) 



Las Animas (7) 



Lay (9) 



Le Roy (8) 



Long's Peak (n) (8) . 



Mancos (9) 



Meeker (9) 



Montrose (9) , 



Moraine (8) 



Pagoda (9) 



Paonia (9) 



Pueblo (7) 



Rocky Ford (7) 



Saguache (H) 



Salida (7) 



San Luis (H) 



Santa Clara (7) 



SUt (9) 



Sugar Loaf (8) 



Trinidad (7) 



T. S. Ranch (9) 



Westcliffe (7) 



Wray (8) 



feet. 



620 



1,350 



244 



673 



334 



23 



2,326 



136 



3,935 



5,347 



5,329 



6,220 



6,175 



4,279 



6,000 



6,098 



4,400 



4,965 



5,272 



6,534 



4,985 



4,338 



6,500 



4,608 



5,089 



4,639 



6,400 



5,721 



3,380 



3,745 



6,596 



3,592 



3,899 



6,190 



4,380 



8,700 



6,960 



6,183 



5,811 



7,750 



6,500 



6,694 



4,734 



4,177 



7,740 



7,050 



7,794 



8,250 



5,441 



9,300 



5,994 



6,200 



7,864 



3,512 



12 



15 

 11 

 15 



8 



11 

 13 

 38 

 12 



18 

 13 



16 

 14 

 16 



9 

 16 



9 

 10 

 14 

 10 

 12 

 13 



8 



12 

 16 



Apr. 14 



Mar. 30 



Mar. 7 



Apr. 12 



Mar. 13 



Mar. 

 Apr. 

 Jan. 



14 



8 

 16 

 22 



Apr. 29 



Apr. 27 



Apr. 29 



May 28 



May 20 



May 10 



May 26 



May 3 



May 8 



May 16 



May 6 



May 28 



May 9 



May 7 



May 12 



Apr. 18 



May 10 



May 6 



May 17 



May 20 



May 1 



May 9 



May 15 



Apr. 27 



May 2 



June 16 



May 2 



June 26 



June 9 



June 12 



May 16 



June 15 



June 12 



May 5 



Apr. 27 



May 2 



May 24 



May 31 



June 9 



June 3 



May 21 



June 3 



May 1 



Apr. 27 



June 12 



May 8 



Nov. 1 



Nov. 13 



Nov. 18 



Dec. 17 



Nov. 27 



Nov, 3 



Nov. 8 



Dec. 11 



Oct. 11 



Oct. 9 



Oct. 5 



Sept. 19 



Sept. 23 



Sept. 22 



Sept. 24 



Oct. 3 



Sept. 30 



Sept. 25 



Oct. 6 



Sept. 26 



Sept. 24 



Sept. 28 



Sept. 27 



Oct. 18 



Sept. 29 



Oct. 1 



Sept. 24 



Oct. 2 



Oct. 1 



Sept. 22 



Sept. 25 



Oct. 3 



Oct. 2 



Sept. 6 



Sept. 29 



Sept. 2 



Sept. 17 



Sept. 12 



Oct. 2 



Sept. 13 



Sept. 3 



Oct. 3 



Oct. 7 



Oct. 3 



Sept. 17 



Sept. 20 



Sept. 11 



Sept. 24 



Sept. 27 



Sept. 13 



Oct. 7 



Oct. 10 



Sept. 18 



Sept. 27 



days. 



201 



228 



256 



249 



259 



240 



206 



323 



165 

 165 

 159 

 114 

 126 

 135 

 121 

 153 

 145 

 132 

 153 

 121 

 138 

 143 

 138 

 183 

 142 

 148 

 130 

 135 

 153 

 136 

 133 

 159 

 153 



82 

 150 



68 

 100 



92 

 142 



90 



83 

 151 

 163 

 154 

 116 

 112 



94 

 113 

 129 

 102 

 159 

 166 



98 

 142 



