CEREAL INVESTIGATIONS ON THE BELLE FOUECHE FARM. 5 



precipitation (March to July, inclusive) for the same years varied 

 from 2.01 to 12.94 inches. 



The average precipitation at the Belle Fourche Experiment Farm 

 is very near the normal for the western part of the State. The 

 period during which experiments have been conducted includes three 

 years in which the precipitation was less than the normal, one of them 

 being the driest known in the history of the State, and three years 

 in which the precipitation was above normal. 



In order to make practical use of field experiments, it is necessary 

 to know to what extent the conditions under which they were con- 

 ducted are likely to continue through a considerable period of time. 

 For this reason Table III, which gives the annual precipitation at Fort 

 Meade, S. Dak., for a period of 35 years (1879-1913) is included. 



The record of precipitation at Fort Meade is practically continuous 

 since 1879. Where there have been omissions, it has been completed 

 from the records at near-by points. 



Table III. — Monthly, seasonal, and annual precipitation at Fort Meade, S. Dak., for 

 35 years, 1879 to 1913, inclusive. 



[Data (in inches) from the records of the Weather Bureau.] 



Year. 



Jan. 



Feb. 



Mar. 



Apr. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Sea- 

 sonal. 



To- 

 tal. 



1879 















0.78 

 1.62 

 1.50 

 3.05 

 2.80 

 1.20 

 1.52 

 3.38 

 4.46 

 2.64 

 6.38 



.16 

 1.75 

 1.04 

 1.14 



.57 



.55 



.72 

 2.05 

 1.20 



.29 

 2.05 

 2.83 

 1.11 

 4.25 



.40 

 10.33 

 1.45 

 6.23 



.50 

 3.19 

 1.62 

 c.58 

 2.78 



.25 



1.40 

 3.91 

 1.57 

 .44 

 .18 

 2.30 

 3.22 

 1.50 

 4.25 

 3.54 

 



1.64 



1.50 



2.93 



.70 



.42 



.95 



.05 



3.11 



1.50 



.30 



1.90 



2.75 



.07 



3.56 



2.35 



.62 



5.55 



.04 



6.80 



.30 



1.44 



c2. 29 



9.15 



.93 



0.14 



Ta 



1.00 



.26 



1.60 



.23 



.28 



.40 



1.10 



.02 



.67 



.76 



.87 



.32 







.62 



.80 



2.46 



.01 



1.80 



1.10 



2.03 



1.35 



.75 



2.90 



.45 



.12 



.12 



1.40 



.58 



1.50 



3.49 



c.97 



2.50 



.68 



1.60 



.54 



.63 



.49 



.67 



.75 



.74 



.40 



.40 



.14 



1.71 



.38 



.41 



2.46 



3.48 



1.24 



.23 



Ta 



.02 



1.54 



1.94 



.46 



.83 



.10 



.40 



1.86 



4.95 



1.20 







2.20 



.50 



.52 



cl.06 



.80 



c2.37 



0.04 



.44 



.46 



.05 



.05 



.53 



.93 



1.60 



.24 



.16 



.88 



.40 



.52 



1.51 



1.48 



1.03 



2.38 



1.27 



.50 



.33 



.14 



.50 



.17 



.01 



.80 



.16 



.64 



.92- 







.32 



1.70 



1.06 



cl.08 



T 

 c. 14 



0.89 



.39 



T» 



.12 



.72 



.90 



.17 



.72 



.36 



.17 



.86 



.38 



.32 



1.54 



1.68 



.72 



.40 



.06 



T a 



1.10 



.56 



.70 



.89 



.07 



.81 



.72 



.12 



1.30 



.33 



1.70 



1.31 



.13 



c.58 



1.02 



.30 







1880 



0.38 

 .56 

 .10 



2.90 

 .37 

 .32 

 .32 

 .56 



1.65 

 .27 

 .55 

 .78 



1.36 

 .40 

 .55 

 .85 

 .66 



1.33 



1.20 

 .91 

 .50 

 .47 



1.53 

 .50 

 .26 

 .97 

 .30 

 .60 

 .10 

 .12 

 .57 

 .17 



c.09 

 .95 



1.00 



1.30 

 .10 

 .30 

 .33 

 .23 

 .67 

 .20 



1.29 

 .85 

 .46 

 .83 

 .27 

 .74 

 .12 

 61.05 



1.14 

 .05 

 .15 

 .46 

 .34 

 .99 



2.30 

 .90 



1.22 

 .21 



1.42 

 .40 



1.00 

 .12 

 .10 

 .45 

 .31 

 .60 



0.92 



.95 



.60 



2.16 



2.26 



.52 



.88 



.76 



.75 



.12 



1.24 



1.63 



.67 



2.41 



3.08 



62.26 



3.43 



1.36 



.83 



1.42 



1.14 



1.71 



5.53 



1.70 



.31 



1.14 



2.25 



.30 



1.15 



.42 



1.55 



c.09 



1.19 



3.30 



0.75 



1.10 



4.77 



4.50 



5.04 



1.30 



2.17 



2.12 



.20 



2.64 



1.65 



2.29 



5.70 



3.45 



3.48 



2.91 



2.51 



1.80 



1.20 



4.15 



.95 



1.68 



3.80 



2.55 



.96 



.49 



.25 



.85 



2.80 



2.23 



2.00 



c.47 



2.90 



.40 



3.33 



3.87 

 9.61 

 8.58 

 .64 

 .57 

 2.72 

 3.94 

 2.02 

 2.31 

 6.60 

 3.30 

 2.01 

 1.15 

 3.35 

 2.69 

 1.07 

 9.60 

 6.75 

 .35 

 2.83 

 3.35 

 3.36 

 4.52 

 5.94 

 5.37 

 10.95 

 3.98 

 10.20 

 2.70 

 c.04 

 1.91 

 3.10 



4.68 

 2.66 

 5.47 

 1.56 



.48 

 3.38 



.90 

 1.76 

 5.50 

 1.60 

 6.30 

 4.29 

 3.99 

 1.63 

 3.80 

 5.05 

 2.62 

 5.32 

 2.70 

 2.35 

 3.00 

 6.78 

 3.57 

 2.16 

 5.76 

 4.84 

 1.85 

 8.10 

 1.87 

 8.53 

 1.70 

 c.62 



.70 

 2.08 







1881 



9.54 

 17.76 

 20.63 

 17.56 

 7.36 

 7.90 

 11.82 

 13.03 

 12.76 

 11.66 

 16.56 

 14.70 

 10.64 

 12.08 

 14.12 

 11.97 

 11.60 

 15.53 

 14 96 

 7.49 

 15.83 

 17.36 

 14.02 

 11.95 

 22.74 

 11.17 

 26.43 

 10.30 

 24.57 

 9.57 

 1.80 

 9.48 

 9.13 



15.06 



1882 



19.32 



1883 



27.05 



1884 



22.97 



1885 



13.25 



1886 



13.51 



1887 



18.93 



1888 



20.00 



1889 



18.00 



1890 



16.23 



1891 



21.79 



1892 



24.09 



1893 



19.12 



1894 



16.78 



1895 



20.76 



1896 



1897 



17.61 

 16.62 



1898 



23.15 



1899 



20.37 



1900 



13.92 



1901 



23.28 



1902 



22.19 



1903 



23.89 



1904 



18.97 



1905 



30.37 



1906 



21.98 



1907 



29.20 



1908 



17.00 



1909 



30.12 



1910 



16.88 



1911 



8.40 



1912 



23.35 



1913 



15.10 







Mean 



.68 



.64 



1.47 



2.24 



4.02 



3.57 



2.18 



1.92 



.94 



1.06 



.61 



.63 



13.45 



19.86 



a T= trace. 



6 Record missing; estimated from the records at near-by stations. 



c Record missing; rainfall at Vale; S. Dak., about 15 miles north of Fort Meade, substituted. 



