650 



STATE BOARD OF AGRICULTURE. 



MONTHLY RANGE OF TEMPERATURE. 

 TABLE 77.— MONTHLY RANGES OF TEMPERATURE OF THE U.>fCULTIV.\TED, CULTIVATED AND SOD PLOTS. 



December . 

 January. . . 

 February. . 



March. 

 April . . 

 May.. 



Name of month. 



UncultiTated. 



Cultivated. 



20* 



.87 



1.83 



.31 



.51 

 6.39 



.35 



.49 



1.09 



.35 



.51 

 3.28 



20' 



.35 

 .18 

 .38 



.61 

 1.04 



Sod. 



.79 

 .46 

 .38 



.35 



4.84 



20* 



.28 

 .17 



June. . . 

 July... 

 August. 



September.". 



October 



November. . 



6.76 

 6.97 

 5.29 



5.70 

 4.74 

 2.40 



.66 

 .67 

 .58 



2.60 

 1.47 

 1.13 



1.10 

 1.06 

 1.00 



1.03 



1.06 



.84 



.32 

 .52 



.47 



.84 

 .57 



The foregoing table contains the monthly ranges between the maxima 

 and minima temperature of the three different plots for the different 

 months. It will be seen that the amplitude of the upper 7 inches of 

 every plot increased from the winter months up to a certain time in 

 the warm part of the year and then decreased. The maximum monthly 

 amplitude that was reached was at different times for the various plots. 

 For the cultivated it was in June, for the uncultivated July, and for 

 the sod April. With the exception of the last month the variation be- 

 tween the highest and lowest temperature was greatest for the unculti- 

 vated, smallest for the sod and medium for the cultivated. The ampli- 

 tude of the sod was very small indeed in comparison with that of the 

 other plots. 



The amplitude of the 18 inch depth is not as complete as that of the 

 7 inch depth but for those months that there are records for show that 

 the magnitude was far below that of the upper depth, that it was great- 

 est for the uncultivated, followed in order by the cultivated and finally 

 by sod, and that the variation from month to month was not anywhere 

 near as great, for any plot, as it was in the upper depth. 



