13 
ComparaHiM t<ti>/, of discharge oj Big Thompson River at Arkin I 
Month. 
1888. 
1888. 
L890. 
1891. 
1892. 
L896. 
Cu.fi 
1898. 
1897. 
Ou.fi 
L89G 
1899. 
Cu.fi 
381 
140 
l 
on 
808 
L46 
1 . 686 
917 
151 
1,189 
653 
416 
589 
283 
lie 
146 
92 
35 
a 116 
64 
L900. 
April: 
Cu.fi. 
in >.«<■. 
in> 
62 
10 
260 
132 
50 
760 
158 
200 
no 
275 
160 
580 
190 
100 
180 
75 
60 
100 
46 
40 
Cu.fi. 
t » raec. 
Cu.fi. 
i>< raec 
Cu.fi 
Cu.fi. 
\,i r ■-' <■■ 
Cu.fi. 
i» rsec 
74 
87 
.". 
911 
218 
5 
183 
285 
180 
403 
225 
152 
143 
111 
38 
195 
119 
74 
138 
66 
20 
Cu.fi 
Cu.fi 
I" t 
M C. 
1,990 
112 
1 
May: 
546 707 
359 136 
ISO 
L, 182 
817 
523 
63d 
883 
219 
235 
159 
105 
137 
95 
69 
182 
312 
195 
L,195 
Till 
329 
864 
198 
259 
247 
150 
81 
90 
49 
39 
120 
318 
217 
323 
570 
344 
77s 
165 
293 
6% 
319 
174 
217 
146 
32 
132 
79 
20 
120 
64 
165 
36 
[59 
267 
iif, 
390 
133 
36 
85 
37 
15 
is 
8 
5 
841 
164 
L3 
606 
:;77 
517 
288 
36 
177 
79 
45 
98 
36 
8 
■Jl 
13 
4 
24 
8 
4 
2,090 
l 382 
896 
June: 
527 
382 
208 
370 
200 
10* 
137 
89 
53 
59 
49 
40 
50 
712 
530 
365 
1,603 
l.M 
255 
643 
393 
185 
235 
151 
65 
97 
l.'.P.NI 
Mean 
1,362 
7:;7 
July: 
566 
349 
208 
August: 
208 
137 
88 
September: 
38 
77 
60 
October: 
(6 67 
28 51 
38 
November: 
100 
S3 
60 
a No record October 1 to 7. 
On account of the uncertainty of the location of the earlier stations 
and because it is not known whether the waters diverted by the ditches 
above the stations were included in the discharges as given, the records 
for the years 1888 to 1892, inclusive, have been excluded in making 
estimates of the discharge and run -off. In the table which follows the 
volume diverted by the ditches is added to the discharge as given in 
the preceding table, and the average computed for the six years 1895 
to 1900, inclusive. 
Run-off df Big Thompson drainogi area. 
Monti). 
1895. 
1896. ! 1897. 1898. 
1899. 1900. Average. 
Average 
monthly 
precipita- 
tion.fi 
.lamia rv 
Cubic feet 
pt r st c. 
ft 60 
Cubic feet Cubic feel Cubic feet 
i» r sec. i" r sec. ji> r sec 
'Mill /Mil) ft CO 
Cubic feet Cubic feet Cubic feet 
per sec per sec per sec 
ft 60 ft 60 60 
ft 60 '' Ci) 60 
blOO ft 100 100 
Inches. 
0.71 
February . . 
6 60 
'Mill ftfiO ft CI) 
l r.) 
March 
ft 100 ft 100 '> 100 ft 100 
ft 250 37 &250 &25Q 
440 269 590 I 231 
931 363 679 198 
687 2fil 379 317 
1 75 
April 
302 41" 250 2.19 
May 
353 1.382 544 2.60 
Julie 
1,037 1,497 834 1.18 
770 379 4C"» 2.27 
July 
August 
re 
173 196 
112 
57 
28 
17 
ft60 
316 159 230 1.74 
September 
185 
116 
ft 70 
ft 60 
161 
71 
103 ' ^7 111 i or 
October 
97 
ft 70 
ft60 
54 
27 
*>60 
64 ''71 71 
1.11 
November 
ft 70 ft 70 .54 
ft 60 ft 60 60 
69 
December 
68 
Average 
282 
143 
211 
149 
275 361 237 17.48 
"Melted snow and rain. 
''Estimated. 
