4 
BULLETIN 398, U. S. DEPARTMENT OF AGRICULTURE. 
Table II. — Monthly, seasonal, and annual precipitation (in inches) in the vicinity of 
Moccasin, Mont., during the 18 years from 1898 to 1915, inclusive. 1 
[Data from the records of the United. States Weather Bureau and of the Biophysical Laboratory of the 
Bureau of Plant Industry.] 
Year. 
Jan. 
Feb. 
Mar. 
Apr. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Sea- 
sonal. 
Total. 
1898 
0.70 
0.27 
1.91 
1 
12 
5 
87 
5. 
80 
3. 
16 
0 
67 
0 
47 
1.25 
1.14 
0. 59 
15.95 
22.95 
1899 
1.69 
.38 
.92 
2 
20 
3 
33 
1. 
22 
2. 
57 
1 
31 
28 
1.15 
.11 
.88 
9.41 
16. 13 
1900 
.45 
.35 
.21 
2 
85 
1 
04 
44 
70 
2 
20 
82 
.86 
.29 
.21 
5.03 
10.42 
1901 
.40 
.20 
.57 
1 
65 
3 
82 
3. 
97 
L 
97 
90 
2 
42 
1.39 
2 t 
3.22 
11.41 
20.51 
1902 
.14 
.24 
.45 
1 
12 
1 
41 
3. 
28 
1. 
84 
67 
32 
.18 
2. 04 
.25 
7.65 
11.94 
1903 
. 50 
24 
1. 11 
2 
29 
1 
82 
2. 
81 
2. 
57 
81 
2 
42 
.05 
. 44 
. 65 
9. 49 
15. 71 
1904 
.18 
.22 
.79 
1 
14 
1 
94 
1. 
73 
3. 
25 
42 
12 
.54 
.50 
.24 
8. 06 
1L07 
1905 
.19 
.16 
.62 
75 
1 
97 
2 
82 
3. 
19 
27 
83 
.39 
.50 
T 
8.73 
11.69 
1906 
.55 
.63 
.43 
If. 
2 
61 
2 
66 
93 
2 
00 
99 
.70 
.42 
.68 
6.56 
12. 76 
1907 
1.34 
.08 
.61 
43 
3 
21 
6 
75 
3* 
51 
1 
47 
73 
.20 
T 
T 
13.90 
18.33 
. 55 
no 
. W5 
61 
7 
31 
2 
45 
20 
1 
18 
1 
41 
6. 27 
. 22 
10. 57 
21. 67 
1909 
.90 
.08 
1.22 
1 
03 
1 
34 
5 
97 
2 
54 
4 
21 
4 
47 
.49 
.30 
1.21 
10.88 
23.76 
1910 
.09 
.74 
.10 
1 
31 
2 
40 
1 
69 
1 
10 
2 
02 
2 
54 
1.36 
1.26 
'.48 
6.50 
15.09 
1911 
.58 
.55 
.54 
1 
66 
2 
98 
2 
55 
50 
6 
34 
1 
37 
1.94 
1.76 
.68 
7.69 
21.45 
1912 
.88 
.60 
.81 
1 
43 
3 
94 
64 
1 
92 
1 
27 
1 
63 
1.68 
.14 
.06 
7. 93 
15.00 
1913 
.89 
.09 
.20 
79 
2 
64 
4 
77 
1 
12 
51 
1 
01 
1.63 
.93 
.38 
9. 32 
14.96 
1914 
.47 
1. 35 
1.12 
1 
19 
2 
91 
4 
64 
64 
65 
1 
11 
.74 
.64 
.21 
9.38 
15.67 
1915 
.76 
.08 
2.69 
1 
43 
2 
12 
3 
97 
3 
54 
92 
2 
65 
.85 
1.01 
.66 
11.06 
20.68 
Average 
.62 
.38 
.85 
1 
29 
2.93 
3.23 
1 
96 
1.55 
1.42 
1.20 
.64 
.59 
9.41 
16. 66 
Maximum . . 
1.35 
2.69 
2. 85 
7.31 
6 
75 
3.54 
6. 34 
4.47 
6. 27 
2.04 
3.22 
15.95 
23.76 
Minimum.. . 
'.09 
.08 
.10 
16 
1.04 
44 
20 
27 
12 
.05 
T 
T 
5.03 
10.42 
1 Precipitation records previous to 1909 were taken at Utica, Mont., 7 miles southwest of the substation; 
in 1909 and since they were taken at the station. 
2 T= trace. 
Table III gives the average monthly, annual, and seasonal pre- 
cipitation at the Judith Basin substation in the nine years from 1907 
to 1915, inclusive, the years during which experiments have been 
conducted at Moccasin. This table has been compiled from the 
Fig. 1. — Diagram showing the annual and seasonal precipitation, in inches, at the Judith Basin substa- 
tion, Moccasin, Mont., for nine years, 1907 to 1915, inclusive. Solid bars show the seasonal precipita- 
tion, while the total length of the bars shows the annual precipitation. 
monthly and annual records given in Table II. The data for 1907 
and 1908 are from the Weather Bureau records taken at Utica, 7 
miles southwest of the station. The data for the remaining years 
are from the records of the Biophysical Laboratory of the Bureau 
of Plant Industry, taken at Moccasin. Figure 1 presents this data 
for each year in graphic form. 
