WATER LOSSES FROM WET AREAS 



127 



TABLE 49 

 MONTHLY EVAPORATION RECORDS AT PRADO, CALIFORNIA, 1930-1933 



Observed by the Bureau of Agricultural Engineering, United States Department of Agriculture 



Type of pan — Standard Weather Bureau pan. 

 Description of pan — 48 inches in diameter by 10 inches deep. 

 Elevation of station — 480 feet (approximately^. 



Remarks: In cooperation with the Geological Survey, U. S. Department of the Interior; and the Division of Water 

 Resources, Department of Public Works, State of California. 



TABLE 50 



MONTHLY EVAPORATION RECORDS AT ONTARIO, CALIFORNIA, 1928-1931 



Observed by the Bureau of Agricultural Engineering, United States Department of Agriculture 



Month 



Depth in inches 



1928 



1929 



1930 



1931 



January 



February... 



March 



April 



May -- 



June 



July 



August 



September. 



October 



November.. 

 December.. 



Totals. 



3.39 

 6.28 

 6.04 

 7.37 

 9.74 

 9.28 

 8.25 

 4.44 

 3.46 

 1.96 



1.87 

 1.85 

 3.53 

 3.83 

 7.31 

 8.59 

 10.17 

 10 55 

 6.39 

 6.21 

 4.96 

 3.32 



1.51 

 2.57 

 3.54 

 5.19 

 5.25 

 6.76 

 8.43 

 7.65 

 4.98 

 3.48 

 2.95 

 1.74 



68.58 



54.05 



2.17 

 2.19 

 5.02 

 5.23 

 6.11 

 6.70 



Type of pan — Standard Weather Bureau pan. Description of pan — 48 inches in diameter by 10 inches deep. 



Elevation of station — Approximately 1,000 feet. 



Remarks: The record for 1930 and 1931 represents evaporation within the city limits where buildings are reasonably 

 close together, limiting both wind movement and hours ot sunshine at the pan. It does not represent conditions in open 

 agricultural districts as does the record for 1928 and 1929. In cooperation with Division of Water Resources, Department 

 of Public Works, State of California. 



