64 



THE BUSTS OF GRAINS IN THE UNITED STATES. 



Table YIl.— Temperature record showing the average monthly departure {in degrees 

 Fahrenheit) from nonruil in several States in 1903, 1904, and i905— Continued. 



1905. 



Month. 



October 



November 



December 



January 



February 



March 



April 



May 



June 



July 



Departure from normal: 



Accumulative 



Average monthly. . . 



Of 3 crop months- 

 Accumulative . . 

 Average monthly. 



Of month containing 

 critical period 



Texas. 



+ 0.9 

 + .3 

 - .7 

 -3.5 

 -10 

 + 3.5 

 _ 2 



-11.5 



- i.ei 



- 8.5 



- 2.83 



Okla- j Kan- Mis- 

 homa. sas. souri. 



+ 2. 



- 1. 

 -10. 



+ 5. 

 _ 2. 



+ . 



-12. 

 - 1. 



+ 3. 

 + 1. 



7 

 81 



50 

 16 



.20 



+3.8 

 -1.3 

 -8.2 

 -8.8 

 +8.5 

 -1.5 

 -1.1 



-8.G 

 -1.22 



+5.90 

 +1.96 



-1.1 



+ 



+ 



3.6 



.3 



7.5 



8.6 



7.8 



.1 



.1 



-4.4 

 - .62 



+ 7.8 

 + 2.60 



+ .10 



Ne- 

 bras- 

 ka. 



+0.9 

 -5.7 

 -6.8 

 +8.2 

 -2.9 

 -3.4 

 - .5 



-9.20 

 -1.31 



-6.80 

 -2.26 



- .50 



Iowa. 



+ 0. 



- 7 



- 6. 

 + 9. 



- 1. 



- 2. 



- 1 



- 4 



- 1 



South 

 Da- 

 kota. 



- 5. 



- 2. 

 +10. 



- 1. 



- 4. 

 _ 2. 



- 3! 



- 9. 



- 1. 



-10. 



- 3. 



3.5 



North 

 Da- 

 kota. 



Iilin- I Wis- 

 nesota. consin. 



- 5.3 

 -1.4 

 +14.5 



- 1 

 -2.8 

 -3.5 

 -2.7 



- 2.2 



- '!31 



- 9 



- 3 



- 2A 



+ 



5.5 

 1.9 

 7.4 

 1.7 

 3.5 

 1.8 

 2.3 



-9.3 



- 1.32 



-7.6 



- 2.53 



2.3 



+ 



- 6, 



- 2. 



. 1 



6 



22 



2 

 06 



-2.1 



Aver- 

 age. 



-9.18 

 -1.31 



-3.53 

 -1.17 



-1.42 



The temperature records (Table VII) for this region for the 

 7-month period preceding harvest and the plotted monthly mean 

 departure from normal (fig. 2) show that in 1903 the average monthly 

 temperature for the 7-month period varied less than one-half a degree 

 F. from normal in aU States except Missouri and Wisconsin, where 

 temperatures were liigh, and in Nebraska, ^where temperatures were 

 low, the average for the whole region being 0.12 degree F. above 

 normal (7l). In 1904 temperatures were subnormal in all States 

 except Texas, Oklahoma, and Nebraska, and strikingly so in Iowa, 

 North Dakota, South Dakota, Minnesota, and Wisconsin, the average 

 for the region being 1.23 degrees below normal (L). In 1905 tem- 

 peratures were again generally subnormal, but not to such an extent 

 over the five last-named States as in 1904, although the general 

 average below normal was shghtly greater in 1905 than m 1904 {M). 

 In considering the 3-month period before and during the heading of 

 the grain it is seen that in 1903 the average monthly temperatures 

 were subnormal, with the exception of Kansas, Missouri, and North 

 Dakota, averaging 0.73 degree F. below normal (iV); that these 

 temperatures were more subnormal in 1904 than in 1903, witli the 

 exception of Texas and Oklahoma, averaging 1.03 degrees below 

 normal (0); that they were again subnormal in 1905, but more 

 irregularly so than in 1904, with a general average shghtly greater 

 than tliat of 1904 (P). In considering the month embracing the 

 critical period it is seen that temperatures were subnormal with 

 striking regularity over the entire region in 1904, averaging over 2\ 

 degrees below normal in Nebraska and Iowa, ahnost 3^ degrees in 

 Wisconsin, and over 3.\ degrees in South Dakota, North Dakota, and 

 I^Iinnesota, with a general average of 2.67 degrees below normal {R). 



21G 



