SORGHUM EXPERIMENTS OX THE GREAT PLAINS. 
Table 1. — Monthly, annual, and seasonal precipitation at the eight field stations 
where sorghum experiments were conducted for the years during which these exper- 
iments were in progress, with averages for this period and for the whole period 
covered by climatic data, together with seasonal evaporation comparisons. 1 
[T=trace.] 
[ 
o 
- 
t d 
Year. 
ce 
- 
c 
- r 
a <s 
a 
03 
1 
I 
>> 
>> 
"3 
bb 
< 
o 
C 
>' 
c 

3 
o 
- 
i 
CO 
c - 
33 
83 
Hays, Kan?.: 
1914 
0.04 
0.4i 
0.15 2.31 
2.36 
3.39, 2.77 
2.63 
0.6t 
1. 33 
T 
0.63 
16.63 
14. 08 47. 10 
1915 
.68 
1.8C 
1. 74 3. 13 
6.82 
3. 97' 8. 18 
4. 1] 
2.44 
.3( 
.04 
34.14 
28.65! 32.79 
1916 
1 .53 
. 1" 
.31 2.21 
1.63 
5. 88 . 30 
1.97 
1.26 
1.14 
.02 
.61 
16. 01 
13.25 
50. 20 
1917 
i - 11 
T 
.07 1.96 
1.72 
2.15 
1.46 
5.73 
1.84 
.09 
1.64 
. 15 
16.92 
14.86 
50.47 
1918 
.80 
1.1c 
1.71 2.49 
4.79 
.53 
3.04 
1.76 
1.42 
2.41 
1. 1C 
2.38 
23.58 
14.03 
47.57 
1919 
T 
2. IS 
. 33 4. 51 
6.85 
3.51 
1.16 
. // 
3.32 
1.81 
1.04 
.15 
26. 13 
20. 12 41. 00 
1923 
.05 
.37 
.30 2.0^ 
3. 32 
1.87 
1.89 
5.11 
1.56 
3.58 
.73 
.46 
21.28 
15. 79; 39. 78 
1921 
.40 
.1C 
.49 3.58 
2.59 
3.67 
3.36 
3.04 
.68 
.05 

.50 
18.46 
16.921 44.56 
Average: 
1914 to 1921 
.33 
. 1 1 
.64 2.78 
3.76 
3.12 
2.77 
3.14 
1.64 
1.42 
.67 
.61 
21.64 17.21 
44.18 
1868 to 1921 
.54 
.86 
.96 2.31 
3.35 
3.20 3.27 
3.02 
2.30 
1.45 
.75 
.84 
22.85 17.45 
Chillicothe, Tex.: 
| 
1913 
.35 
1.91 
1.32| 1.77 
1.01 
2.33 
.29 
.05 
4.21 
4.71 
•2.7V 
5.51 
26. 24 ! 6( 
1914 
T 
.30 
1.68 
2.40 
6.16 
1.67 
1.76 
8.47 
1.04 
1.44 
.41 
1.28 
26.6H 21.50 
41. 11 
1915 
.34 
1.8* 
1.22 
5. 13 
2.15 
6.71 
4.07 
3.73 
3. 83 
5. 07 
.15 
.53 
34.811 25.62 
39.67 
1916 
1.00 
.20 
T 
.30 
1.48 
.30 
3.62 
.73 
1.02 1.17 
2. 33 . 34 
.48 
4.05 
1.19 
1.11 
1.77 
2.06 
3.oe 
.35 
1.53 
.82 
.02 
T 
16.34 
12.59 
9.25 
10.62 
53.23 
1917 
55. 33 
1918 . 
.10 
.42 
1. 56 
1.15 
.95 4.49 
.76 
.26 
3.35 
6. 35 
2.82 
3.44 
25.65 
10.96 
60. 25 
1919 
.25 
.76 
5.27 
8.79 2.88 
1.22 
1.41 
2.64 
13.23 
2.24 
.29 
41.27 22.21 
43.39 
1920 
1.92 
.63 
1.49 
2.41 
9.66 
1.45 
1.39 
8.37 
3.61 
5.42 
2.83 
.52 
39.70 
26.89 
49. 19 
1921 
.31 
1.02 
1.20 
.69 
.67 
9. 60 . 06 
2.73 
1.52 
.03 
T 
.13 
17.96 
15. 27 
53. 17 
Average: 
1913 to 1921 
.50 
.81 
1.39 
2.57 
3.64 
3. 40 
1.56 
3.04 
2.67 
4.41 
1.51 
1. 30 
26.80 
16.89 
49. 42 
1907 to 1921 
.43 
.90 
1.50 
2.27 
3.49 
3.76 
1.86 
2.54 
2.36 
3.65 
1.59 
1.32 
25.67 
16.28 
------ 
Amarillo, Tex.: 
1 
1913 
.11 
. 00 
.59 
1.76 
1.41 
2.32 1.80 
.61 
4.19 
.81 
1.98 
2.84 
18.97 
12.09 
53.79 
1914 
.06 
.10 
.15 
.95 
4.43 
.84 3.07 
2.97 
1.(17 
4.46 
T 
1.17 
19. 27 
13.33 
49.27 
1915 .-___ 
.72 
1.60 
1.00 
5. 05 
1.70 
1.04| 4.14 
5.85 
4.69 
1. 55 
.18 
.13 
27.65 
22.47 
42.80 
1916 
.36 
.02 
. 57 
1.71 
.89 
2. 18 ( . 94 
3.82 
1.76 
2.90 
.40 
.88 
16.43 
11.30 
54.57 
1917 
.69 
.22 
.25 
.71 
2.49 
.83 2.68 
6.17 
2.05 
.34 
.59 
.04 
17.06 
14.93 
54.72 
Average: 
1913 to 1917 
.39 
.50 
.51 
2.04 
2.18 
1. 44 2. 53 
3.88 
2.75 
2.01 
.63 
1.01 
19.88 
14.82 
51.03 
1892 to 1921 
.55 
.82 
.59 
1.67 
2.97 
2.61 2.99 
3.21 
2.23 
1.48 
1.00 
.87 
20.99 
15. 68. _. 
Woodward, Okla.: 
1915 
1.17 
3.44 
1.45 
6. 53 
5.29 
2.43 
3.14 
3.62 
5.74 
2.36 
.55 
.06 
35. 78 
26. 75 
41.66 
1916... 
1.50 
.03 
.82 1.78 
1.70 
10. 26 

1.02 
2.34 
1.71 
. 75 
.60 
22. 51 
17.10 
53.93 
1917 ■_ 
.20 
.20 
. 10, 1. 58 
1.03 
1.37 
1.13 
6.65 
2.72 
.05 
.67 
.01 
15. 71 
14.48 
4'.. ST 
1918... 
1.60 
.29 
2.09 2.22 
4. 00 
1.91 
.73 
1.35 
1.24 
3. 35 
1.53 
2.92 
23. 23 
11.45 
49.78 
1919 
.06 
1.53 
1.94 4.10 
4.29 
2.22 1.35 
1.87 
.63 
1.85 
2.37 
T 
22.21 
14.46 
45.32 
1920 
1.03 
.07 
.61 1.06 
3. 40 
1.291 4.69 
3. 00 
5. 01 
2. 55 
1.32 
1.53 
25. 56 
18.45 
48.49 
1921 
2.22 
.61 
1.33 1.80 
1.91 
-5.78 2.50 
5.11 
2.94 
.01 

.11 
24.32 
20.04 
50.61 
Average: 
1915 to 1921 
1.11 
.88 
1.19 
2.72 
3.09 
3.61 
1.93 
3. 23 
2.95 
1.70 
1.03 
.75 
24.19 
17.53 
48. 52 
1909 to 1921 
.68 
1.56 
.94 
2.08 
2.88 
2.91 
2.03 
3.33 
2. 68j 
1.50 
1.61 
.91 
23.11 
15. 91 

Lawton, Okla.: 
1 
1917.. 
.301 
.20 
.57 
.25 
1.74 1.28 
2.16' 2.36 
4.50 
1.29 
1.01 
3.08 
3.02 
2.57 
2.84 
1.48 
.721 
4.18 
.19 
8.68 
1.08 
1.20 
.03 17.28 
3.50 30.95 
13.37 
14.96 
51.03 
1918 
52.40 
1919 _• 
.541 
1.41 
2.99! 4.60 
5.44 
4.36 3.71 
1. 98 
1.67 
13.78 
2.25 
. 92 43. 65 
21.76 
37.02 
1920 
1.04 
.61 
1.84) 3.14 
7.53 
.69 1.88 
4.18 
2.05 
8.78 
2.29 
.86 34.89 
19.47 
38.33 
1921 
1.15 
1.47 
2.05| 2.14 
i 
1.30 
5.93 2.95 
.83 
2.13 
.03 
T 
.53 20.51 
15. 28 
38.75 
Average: 
1917 to 1921 
.65 
.86 
2. 16 2. 70 
4.01 
3.01 2.83 
2.26 
2.15 
6.29 
1.36 
1.171 29.46 
16.97 
43.51 
1870 to 1921 *„.. 
1.08 
1.19 
1.62 2.98 
5.00 
3.66 3.05 
2.88 
3.14 
2.89 
1.74 
1.64 ; 30.87 
20.71 

1 The detailed monthly data for Chillicothe and Dalhart, Tex., Woodward and Lawton, Okla., and 
Tucumcari, X. Mex., were collected at the field stations; those for Hays, Kans., and Amarillo and Big 
Spring, Tex., were taken from records of the United States Weathe- Bureau. The averages which cover a 
longer period than that included in the monthly data are also very largely taken from Weather Bureau 
records. 
2 No records for Lawton, Okla., were obtainable for the years 1908-12, inclusive. 
