CEREAL EXPERIMENTS AT THE AKRON FIELD STATION. 5 
Ricks I.— Monthly, seasonal, and annual precipitation at and near Akron, Colo., 
during the 1 1-year period, 1905 to 1915, inclusive. 
[Data (in inches) from the records of the Biophysical Laboratory of the Bureau of Plant Industry, except 
the following from the records of the United States Weather Bureau at Akron, Colo.: (1) For the years 
1905, 1906, and 1907; (2) for January to May, inclusive, and October to December, inclusive, in 1908; (3) 
for Ji anuary to March, inclusive, and October to December, inclusive,in1909. T= ‘trace. ] 
fh Seasonal.1 
Year. | Jan. | Feb. | Mar.| Apr. | May.|June.| July.| Aug.} Sept.} Oct. | Nov.| Dec. |Total. Mar 
Aug. 
to to 
July. |Oct.2 
1905. 0.37 | 0.32 | 5.45 | 4.55 | 4.37 | 2.14 | 3.82 | 0.86 | 0.83 | 1.73 | 0.12 | 0 24.56 |20.33 | 3.42 
1906. 5o5) 26 | 1.51 | 4.22 | 3.32 | 1.20 | 2.46 | 1.26 | 1.00 | 1.90 |} 1.56 -08 |19. 02 |12.71 | 4.16 
1907. 0 A .43 | 1.74 | 3.30 | 3.26 | 6.06 | 5.13 | 1.86 .02 | 1.00 . 60.|23. 40 114. 79 | 7.01 
1908... 0 34 Ae 1.70 | 3.57 | 2.35 | 3.40 | 1.62 . 22 | 3.20 | 2.00 T. {18.38 {11.02 | 5.04 
1909... TNs 1.38 | 3.06 -40 | 1.87 | 3.32 | 4.61 | 3.77 | 2.16 . 78 .48 55 |22. 38 113. 26 | 6. 71 
1910.... -05 16 26 | 3.96 | 2.06 | 1.38 | 1.47 | 3.72 | 3.81 |] .05] .12{ .32 |17.36 | 9:13 | 7.58 
MOM - 60 44 .06 | 2.63 | 1.15 | 1.48 | 1.34 | 1.30 |] 2.40 | 1.47 -28 | 1.36 114.51 | 6.66 | 5.17 
1912.....] .28] 1.43 .78 | 2.49 | 2.86 | 3.39 | 3.58 | 1.58 | 1.88 | 1.99 .18 . 29 |20. 73 |13.10 | 5.45 
HOS 2...) «22 ~40 | 1.57 | 2.19 | 1.44 | 1.35 | 1.85 | 1.14 | 2.08 . 34 .30 | 3.67 |16.55 | 8.40 | 3.56 
1914..... -03 BBY? .20 | 4.01 | 1.46 | 3.54 | 1.66 | 1.05 . 23 | 2.08 -10 .90 |15. 58 |10. 87 | 3.36 
1915. .-| 1.10 | 1.68 | 1.50 | 5.19 | 4.13 | 3.75 | 1.10 | 3.51 | 1.76 . 48 Sl lis) 65 125.00 115.67 | 5.75 
A ver- 
age..| .27 | .61 | 1.34 | 3.00 | 2.68 | 2.46 | 2.85 | 2.26 | 1.65 | 1.27 | .57) .76 /19.72 |12.33 | 5.20 
1 Months inclusive. 2 Rainfall affecting the fall growth of winter grains. 
TasLE II.—Monthly and annual precipitation recorded near Leroy, Colo., during the 
25-year period, 1891 to 1915, inclusive. 
[Data (in inches) from the records of the United States Weather Bureau at Leroy, Colo. T=trace.] 
Year. Jan. | Feb. | Mar. | Apr. | May.| June.| July.| Aug.} Sept.| Oct. | Nov.| Dec. ae 
ESTO 3 Cae ae ares 1.70 | 1.00 | 1.99 | 1.35 | 5.02 | 4.84] 4.69 | 2.89 | 0.67 | 0.14 | 0.37 | 0.95 | 25.61 
SWE Ras ae ere ada 89 | 2.24 80 | 4.02 | 2.53 | 1.48 | 3.07 | 0 .84 | 1.66] .10 65 | 18.28 
LAUR OS eae ee ees eee .05 | 1.20} .87 46 | 2.73 | 0 On| eee Odes ney ben dale 74'S 94) 9.91 
TLSOEE 5 eS A pr SS OR 4 Onl sen Ou maeSnlicudie| elon es LkG ste 4 dale OGiy 08:26 OD) le dero4 
OS «ere Seer eee ae 73 88 |. 40] 2.43 | 2.05 | 2.94 | 2.56) .79 |) -.42] .11) .47 12 | 13.90 
ISOC s eee Meeks ee 53 245 | 20 aod 236" \ocd (le oaiili 30 | 1804) 12 900) 320 01 | 14.18 
DG Se Me aie ee eee . 60 72 | 1.66 | 1.77 | 3.08 | 2.24] 1.39 | 2.79 | .41)] 2.61 - 40 81 | 18.48 
TAs eS ee eee .38 26| .67| 1.04] 4.60] 1.31 | 2.83 | 1.13 | 1.27 54 -65 27 | 14.95 
IS) 5 ee eee - 50 Sor ele 57, \a2-93 28 |) 2.17 | 2°36 . 88 30 a7) 44 | 13.20 
TST eG es a ae eee 10 OGH eae. 27, 2.10 (3 \U-68)|) "998 /— 335 Oe 20 | 14.74 
ISO] Senet ae eee 06 49 | 1.60 | 2.92) .72) 2.52] .97| 4.03] .27 47 ay 89 | 14.94 
ih GE aS apeeeneee 12] .72 | 1.23 | 1.26 | 3.16} 1.82] .98] 3.70 | 3.46 78 OOF es 99F lad 8s33 
RO) Ree: Vee Sa -18 | 1.50 .26 | 1.12 -80 | 1.07] 1.71 | 3.44 . 62 29 . 06 .03 | 11.08 
LODE Ve SoS deen ee 10} .26] .35]| 1.99] 3.97 | 4.39 | 3.46 | 1.77 | 2.96 | 1.55} .04 -05 | 20.29 
LODE sie ae tana es 17 30 !} 3.28 | 4.70! 3.88 | 2.48 | 2.56 | 1.96 .78 | 1.93 12 «O24 22518 
IG 5 See eee 23 43 | 1.38 | 4.53 | 1.96 | 1.35 | 1.88] 2.83 | 2.70 | 2.69 | 1.29 | .53 | 21.80 
ULOY So eae ees ae ee 12 -05 220 -97 | 2.85 | 2.67 | 2.24 | 4.19 | 1.88 40 . 66 -69 | 16.57 
OOS ie See ee ee ace OSPF a23 ee Sil) 68) 4234) 3 02) owi2i |) a: Gul 1G) |) 3.20 Le 86i i 05) 25223 
OD) Be eae cae eles 01} 1.30] 1.80 | 1.01 | 1.67 | 4.15 | 1.05 | 2.14 | 2.81 56 -91 | 1.08 | 18.49 
WOO). eee ae eee neds 04 04] .62) 1.96 | 2.34 | 2.06 | 1.53 | 1.95 | 1.72 13 13 .36 | 12.88 
IDs eee aaa 32 | .24 -10 | 3.13) 1.74 } 2.21 |.2.50 | 1.68 | 1.16 | 1.87) .18}| .92) 16.05 
LDU) Sy eee WOR ce Ae ae 200 |e GONE G5 ee2162) ()20581 3-524 2580) 160) | 2231) 2.52 | 42 | 16 ))-20. 40 
LADINS} ccs ee 21 96} .77 | 2.01 | 2.54 212590) (ok 62h el 08) 7 T. | 3.54 | 17.38 
IN ie er ee aa 03 35 09 | 3.45 78 | 3.17 | 2.85 | 3.54 .04 | 1.71 02 58 | 16.61 
TOUS ics ees era pares 85 63 | 2.09 | 4.66 | 4.98 | 4.45 | 1.07 | 5.13 | 1.63 .62| .24 -76 | 27.11 
Average....... . 34 OSR a ODmm2n4o5 aio Zoe 2 2oull east ede ooo! LOW |) c3iy 9. Od eliieLo 
The annual precipitation varied from 14.51 inches in 1911 to 25 
inches in 1915. The seasonal precipitation varied from 6.66 inches in 
1911 to 20.33 inches in 1905. Within the period for which crop 
records are presented the maximum seasonal precipitation was 15.67 
