CLIMATIC CONDITIONS OF THE UNITED STATES. 



257 



Table 11. — Precipitation and evaporation data for the period of the average frostless season. 



(Plates 46, 57, and 58.) — Continued. 



Station. 



North Dakota — Cont'd: 



Devils Lake 



(Fort Totten) 



Williston (S31) 



(Fort Buford) 



Ohio: 



Cincinnati 



Cleveland 



Columbus 



Sandusky 



Toledo 



Oklahoma: 



Fort Sill (S41) 



Oklahoma 



Oregon : 



Astoria 



Baker City 



Portland 



Roseburg 



Pennsylvania: 



Erie 



Harrisburg 



Philadelphia 



Pittsburgh 



Scran ton 



Rhode Island: 



Block Island 



Providence 



South Carolina: 



Charleston 



Columbia 



South Dakota: 



Huron 



Pierre 



(Fort Sully) 



Rapid City 



Yankton 



Tennessee : 



Chattanooga 



Knoxville 



Memphis 



Nashville 



T3 



(a 



Q< a; 



'S +3 



a so 



O <v 



a > 



03 



O 



inches. 

 11.57 



8.22 



19.13 

 20.66 

 19.34 

 20.35 

 16.60 



23.49 

 23.03 



41.25 

 3.23 



19.43 

 8.33 



22.52 

 21.91 

 23.97 

 19.45 



19.88 



24.37 

 21.63 



42.15 

 31.16 



12.49 



10.68 



11.70 

 17.17 



25.13 

 25.28 

 27.87 

 25.41 



c 

 o 



tn 

 O 



03 



03 



a 'C^ 

 <5 



inches. 

 0.096 



0.069 



0.099 

 0.104 

 0.105 

 0.104 

 0.095 



0.110 

 0.108 



0.152 

 0.025 

 0.079 

 0.042 



0.116 

 0.112 

 0.116 

 0.109 

 0.113 



0.112 

 0.114 



0.153 

 0.135 



0.095 



0.070 



0.082 

 0.111 



0.121 

 0.122 

 0.124 

 0.123 



-a 

 'C 



D. 



a 



o 



m 



rt m N 

 S P 03 



" O 

 - D CO 

 03 tc . . 



s g ^ 



« § S 





inches. 

 13.67 



9.96 



22 . 38 

 23.22 

 22.36 

 22.99 

 18.93 



25.04 

 25.37 



51.09 



4.73 



25.08 



11.59 



25.07 

 24.92 

 27.35 

 22.25 

 22.81 



28.66 

 25.56 



45.78 

 34.74 



15.37 



11.98 



14.30 

 20.11 



31.22 

 30.71 

 32.91 

 30.69 



inch. 

 0.113 



0.084 



0.115 

 0.117 

 0.122 

 0.118 

 0.109 



0.117 

 0.119 



0.189 

 0.037 

 0.102 

 0.059 



0.129 

 0.127 

 0.133 

 0.124 

 0.130 



0.131 

 0.135 



0.166 

 0.150 



0.117 



0.078 



0.100 

 0.131 



0.151 

 0.148 

 0.147 

 0.148 



00 

 CO 



I 

 l> 



CO 



a 

 o 



a 



o <u 



u p 



a 



* 03 



O 

 H 



inches. 

 15.38 



20.31 



37.20 

 26.35 

 33.29 

 27.36 



26.84 



33.81 



21.77 



29.42 

 28.35 



25.10 



32.13 

 29.69 



17.56 



36.25 

 31.81 



19.00 

 27.60 



18.79 



31.00 

 30.70 

 37.00 

 36.66 



•" CO 

 O CO 



Is 



a 



03 



a 

 o 



n 



a 

 o 



to 



CO 



m 



5 2 



03 to 

 T3 cS 



C 

 03 





inches. 

 0.127 



0.171 



0.192 

 0.133 

 0.181 

 0.140 

 0.154 



0.158 



0.080 



0.120 

 0.143 



0.129 



0.156 

 0.166 



0.081 



0.131 

 0.138 



0.145 

 0.180 



0.122 



0.150 

 0.148 

 0.165 

 0.177 



Moisture ratios 

 for period of 



average frostless 

 season, P/E. 



P/E 



0.75 

 0.40 



0.51 

 0.78 

 0.58 

 0.74 

 0.62 



0.70 



1.90 



0.66 

 0.29 



0.90 



0.75 

 0.66 



1.39 



1.16 

 0.98 



0.66 

 0.39 



0.91 



0.81 

 0.82 

 0.75 

 0.69 



tt/E 



0.89 

 0.49 



0.60 

 0.88 

 0.67 

 0.84 

 0.71 



0.74 



2.35 



0.S5 

 0.41 



1.00 



'o.85 

 0.75 



1.63 



1.26 

 1.09 



0.81 

 0.43 



1.07 



1.01 

 1.00 

 0.89 

 0.84 



