Table 7 



Statistical Analysis of Historical Data for Chosen Parameters 



Gradient of the Mean Gradient 



(°F/100 ^) 



One - 

 Degree 



Numher 

 of Years 



Maximum 



Minimum 





Maximvtm 

 Standard 



Maximum 

 Standard 



Percentage 

 of Ohs.> 



Quadrangle 



of Data 



Mean 



Mean 

 JANUARY 



Range 



Error 



Deviation 



Max. BT Depth 









3to4TW 

 34k48w 

 35N47W 

 35Nit8w 



2 



3 



1 

 6 

 8 



3.07 



2.94 

 3.10 



1.35 



.92 

 .50 



PEERUAEY 



1.72 

 2.02 



2.6o 



2.38 



169 

 1.80 



4I76 



1.82 

 4.06 



100 

 77 



100 

 56 

 70 



3i^Ni^8w 

 35Ni^7W 

 35Ni^ 

 35Nlt8w* 



2 

 3 

 5 

 7 



1.97 



2.20 

 1.03 

 1.75 



.70 



.82 

 .70 

 .94 



MARCH 



1.27 



1.38 



.33 



.81 



.50 

 l.o4 



.27 

 .86 



.71 

 2.08 



.61 

 2.84 



88 

 77 

 90 

 88 



35Wi+7W 

 35Ni»Bw 

 35Nl46w* 



5 



8 



1.00 



5.67(?) 

 3.50(?) 



1.00 



.^5 

 .40 



APRIL 



(?) 



.36 

 5.52(?) 

 3.30(?) 



.62 

 9.56(?) 

 7.38(?) 



91 

 85 

 83 



34N47W 

 34n48w 

 35NU7W 

 35Ni^8w 

 35Ni^8w* 



2 

 4 

 3 

 5 

 6 



.53 



.82 

 1.05 

 1.23 

 1.20 



.51 



.3h 

 .3h 

 .30 

 .35 



MAY 



.02 



.48 

 .71 

 .93 

 .85 



.10 

 .12 

 .20 

 .13 

 .17 



.31 

 .25 



1.01 

 .82 



1.38 



25 

 46 

 32 

 57 

 5i^ 



34n47W 

 34Nit8w 

 35N47W 

 35N^8w 

 35N'4Bw* 



2 



1 



6 

 9 



1.99 



1.32 



2.17(?) 



1.59 



1.50 



1.71 



1.32 



.62 



.98 



.60 



JUNE 



.28 



(?) 

 .61 

 .90 



.18 

 .16 



.6l(?) 



.16 



.12 



.65 



.51 

 2.43(?) 

 1.21 



.88 



27 

 



19 

 3 

 4 



34K47W 

 34Ki^8w 

 35N47W 

 35Nii5w 

 35n48w* 



3 

 4 

 3 

 5 

 6 



4.20 

 3.83 

 3.09 

 3.69 

 3.51 



1.86 

 1.89 

 1.95 

 1.71 

 1.66 



2.34 

 1.94 

 1.14 

 1.98 

 1.85 



.24 

 .21 

 .18 

 .18 

 .18 



.95 

 .86 



.95 

 1.88 

 1.88 









 

 

 



* 20-minute square centered at this location 

 (?) Original data "believed to he in error 



33 



