CLIMATOLOGY EVAPORATION. 



17 



Table III. — Maximum, minimum, and mean temperatures for 



region of San Antonio, Tex. 



1909 in the 



station. 



Austin 



Beeville 



Blanco 



Boerne 



Cuero 



Falfurrias 



Flatonia 



Fredericksburg . 



Georgetown 



Hallettsville.... 



Hondo 



Kerrville 



Luling 



New Braunfels. 

 Rossville 



Sabinal 



San Antonio 



San Marcos 



Taylor 



Uvalde , 



Victoria 



Maximum. 



Date. 



Aug. 19 



...do 



Aug. 18 

 Aug. 19 

 Aug. 20 

 Aug. 18 

 ...do.... 



..do 



...do.... 

 Aug. 20 

 Aug. IS 

 Aug. 19 



Aug. IS 



Aug. 19 

 ...do.... 



Aug. 4 



Aug. 20 



Aug. 18 



...do.... 



...do.... 



...do.... 



Tem- 

 pera- 

 ture. 



"F. 

 102 

 106 

 107 

 109 

 109 

 107 

 107 

 104 

 112 

 104 

 108 

 105 



105 



105 

 108 



110 



107 



105 



109 



110 



101 



Minimum. 



Date. 



Tem- 

 pera- 

 ture. 



Jan. 

 ...do. 



Jan. 



Feb. 



Jan. 



Feb. 



Jan. 

 ...do. 

 ...do. 



Jan. 



11 



11 



Feb. 

 /Jan. 

 \Feb. 



Jan. 



Dec. 

 (Jan. 

 \Feb. 



Jan. 

 /..do. 

 \Feb. 



Jan. 

 /Jan. 

 \Fel). 



Feb. 



19 

 23 

 14 

 14 

 21 

 23 

 18 

 11 

 16 

 20 



Mean. 



11 



19 



19 

 20 



21 



20 



19 



15 



21 



'F. 

 67.9 

 72.0 

 66.1 

 67. 5 

 71.2 

 74.1 

 70.5 

 66.8 

 67.4 

 71.0 



66.6 



69.5 



69.5 

 72.1 



72.0 



70.3 



68.4 



68.0 



71.6 



71.0 



The month of August was marked by excessive heat, some localities 

 showing a temperature as high as 110° to 112° F. The continuance 

 of the high temperature for several days following or subsequent to 

 the maximum recorded was general for the entire territory. The con- 

 tinued high temperatures and the lack of the customary amount of 

 rainfall caused a very considerable decrease in crop yields. Through- 

 out the area cotton did not make half a crop, many fields of corn were 

 a total failure, and other vegetation suffered in a corresponding 



degree. 



EVAPORATION. 



The relative total evaporation for the vicinity of San Antonio is 

 high, with a rate between that of a desert center and a decidtious 

 forest. 



Table IV shows the average daily evaporation in inches for the year 

 1909, and the first three months in 1910, at the San Antonio Experi- 

 ment Farm. The data were obtained from Mr. C. S. Scofield, who 

 recorded the daily evaporation from an open-air tank. 

 100833°— Bull. 226—12 2 



