Native Vegetation 
i5 
TABLE V.—FROST DATA FOR REPRESENTATIVE COLORADO STATIONS. 
(Data available ud to and including year 1915). 
Station 
County 
® 40 
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M 
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4 J (h 
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ft cS w 
Ctf rl 
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<X> Jh 
> Cd Q 
<1 Q cc 
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« & 
W ^ 4 -> 
<D W 
-4-> CO O 
0 $ Ctf Fh 
J J fe 
W M 
0^2 0 
Mi 
^ fa 
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<5 Q fa 
Arriba . 
Ashcroft 
. Lincoln 
.Pitkin 
5240 May 21 June 7 Oct. 4 
9483 July 1 July 28 Sept. 1 
Boulder .Boulder . 5347 
Buena Vista.Chaffee. 7955 
Burlington . ...Kit Carson_ 4160 
C'alhan .El Paso. 6700 
Canon City .. ..Fremont.5343 
Castle Rock-Douglas . 6220 
Cedaredge . .i...Delta . 6175 
Cheyenne Wells. Cheyenne _ 4279 
Collbran.Mesa. 6000 
Colorado Spgs...El Paso . 6098 
Cope .Washington . . 4250 
Delta .Delta . 
Denver .Denver . 
Durango .La Plata .. . 
Ft Collins .Larimer .... 
Ft. Morgan .Morgan. 4319 
.... 9300 
4510 
Frances .Boulder 
Fruita .Mesa . . 
4965 
5272 
6534 
4985 
Garnett .Costilla 
Glenwood Spgs.. . Garfield 
Grand Valley. ...Garfield 
7576 
5823 
5089 
Grand Junction..Mesa. 4602 
Greeley.Weld ... 
Gunnison .Gunnison 
4649 
7670 
Hoehne.Las Animas... 5700 
Holly .Prowers. 3380 
Apr. 29 
June 3 
May 3 
May 15 
Apr. 28 
May 14 
May 16 
May 3 
May 16 
May 6 
May 6 
May 11 
May 4 
May 17 
May 5 
May 6 
May 31 
Apr. 30 
June 6 
May 22 
Apr. 3 
Apr. 18 
May 1 
June 28 
May 17 
Apr. 25 
May 20 
June 28 
May 27 
May 27 
May 23 
June 10 
June 9 
May 26 
June 8 
May 23 
May 28 
May 28 
June 6 
June 5 
May 21 
May 25 
June 20 
May 22 
July 7 
June 19 
May 27 
May 14 
May 21 
July 28 
July 4 
May 27 
Oct. 12 
Sept. 20 
Oct. 8 
Sept. 28 
Oct. 11 
Sept. 21 
Sept. 8 
Oct. 6 
Sept. 26 
Oct. 2 
Oct. 5 
Sept. 27 
Oct. 7 
Sept. 25 
Sept. 26 
Sept. 30 
Sept. 20 
Oct. 3 
Sept. 12 
Sept. 18 
Oct. 7 
Oct. 19 
Oct. 1 
Sept. 1 
Oct. 2 
Oct. 11 
Idaho Springs. . .Clear Creek... 7543 May 20 June 7 Sept. 27 
Lake City.Hinsdale. 8686 
Lake Moraine. .. El Paso. 10265 
Lamar .Prowers . 3592 
Las Animas ....Bent . 3899 
Lay.Moffat . 
Leadville .Lake .. 
LeRoy.Logan . 
Longmont .Boulder 
Long’s Pk (nr.) .Larimer 
6190 
10248 
4388 
4950 
8600 
Mancos.Montezuma ... 6960 
Meeker .Rio Blanco .. 6182 
Montrose .Montrose . 5811 
Moraine.Larimer . 7775 
Pagoda .Routt . 6500 
Pagosa Springs. .Archuleta .... 7108 
Paonia .Delta . 5694 
Pueblo .Pueblo . 4734 
June 11 
June 19 
Apr. 23 
Apr. 27 
June 11 
June 17 
May 3 
May 3 
June 29 
June 6 
June 13 
May 12 
June 14 
June 24 
July 24 
May 14 
May 20 
July 9 
July 28 
May 27 
May 19 
July 31 
Sept. 18 
Sept. 9 
Oct. 8 
Oct. 6 
Sept. 5 
Sept. 12 
Oct. 1 
Oct. 1 
Aug - . 30 
July 6 Sept. 21 
July 4 Sept. 11 
June 8 Sept. 27 
July 20 Sept. 10 
May 17 July 19 Aug. 9 
June 28 July 29 Sept. 12 
Apr. 30 May 20 Oct. 16 
Apr. 27 May 23 Oct. 7 
Earliest Date 
First Fall 
Frost 
Aver. Length 
Frostless Seas. 
Shortest Frost¬ 
less Season 
Sept. 20 
133 
119 
Aug. 1 
61 
28 
Sept. 15 
166 
125 
Sept. 8 
108 
91 
Sept. 25 
158 
137 
Sept. 2 
138 
111 
Sept. 17 
166 
136 
Sept. 10 
132 
99 
Sept. 10 
129 
95 
Sept. 12 
157 
122 
Sept. 12 
132 
114 
Sept. 11 
149 
124 
Sept. 21 
150 
122 
Sept. 11 
138 
113 
Sept. 13 
156 
117 
Sept. 11 
130 
98 
Sept. 7 
144 
125 
Aug. 25 
145 
95 
Aug. 25 
110 
88 
Sept. 15 
156 
133 
Aug. 13 
95 
51 
Aug. 9 
112 
58 
Sept. 11 
187 
115 
Sept. 14 
181 
144 
Sept. 7 
156 
126 
Aug. 1 
63 
19 
Sept. 10 
136 
73 
Sept. 17 
166 
130 
Sept. 13 
132 
112 
Sept. 6 
99 
80 
Aug. 6 
78 
52 
Sept. 17 
167 
140 
Sept. 9 
161 
123 
Aug. 11 
85 
30 
Aug. 2 
92 
65 
Aug. 25 
142 
128 
Sept. 15 
152 
135 
Aug. 1 
62 
3 
Aug. 27 
106 
78 
Aug. 22 
88 
57 
Sept. 14 
137 
113 
Aug. 22 
88 
57 
Aug. 20 
82 
55 
Sept. 5 
78 
58 
Sept. 21 
161 
130 
Sept. 12 
163 
139 
