CONSERVATION RESEARCH REPORT 5, U.S. DEPT. OF AGRICULTURE 



Table 3. — Summary of weather data for the grain sorghum growing season at Bushland, Tex., 1956-61, 



and averages for longer periods — Continued 





Preceding 

 fallow period, 



November- 

 May, average 

 or total 



Crop growing season 



Annual 



Year 



June 



July 



August 



September 



October 



Average 

 or total 



average 

 or total 1 









Mean Cloud Cover (tenths 



) 2 







1956 



4.7 

 5.8 

 5. 9 



4. 9 



5. 1 



4 2 

 43 

 4 1 

 4 7 

 43 



5.0 

 4 1 

 4 1 

 4 2 

 45 



3.8 

 4 7 

 4 

 4. 2 

 3.9 



1. 1 

 3.5 

 5. 5 



2. 6 

 3.3 



2.7 

 6. 2 

 4 6 

 3.6 

 40 



3.4 

 4 6 

 45 

 3. 9 

 4 



4 1 



1957 --- 



5 3 



1958 _- 



5 3 



1959--. _ 



4 5 



1955-60 



4 7 











Estimated Solar Radiation (g. cal 



/cm. 2 -day) 2 







1956 . 



417 

 379 

 364 

 414 

 393 



677 

 653 

 661 

 451 

 652 



615 

 665 

 664 

 654 

 641 



595 

 555 

 593 



588 

 598 



598 

 496 

 491 

 572 

 508 



430 

 321 

 374 

 404 

 390 



582 

 538 

 556 

 534 

 558 



486 



1957 



445 



1958. 



445 



1959. 



464 



Long-time average __ 



462 









Pan Evaporation (inches) 



i 







1956 



44 26 



33. 89 

 23. 89 



34. 32 

 * 33. 88 



11. 68 

 9. 54 

 11. 74 

 10.04 

 10.81 



11. 26 

 14 28 

 11. 18 

 9. 46 

 11. 08 



11. 49 

 9. 04 

 11. 14 

 10. 00 

 10. 15 



11. 70 



7. 63 

 8.33 

 9. 07 



8. 35 



8. 46 

 5. 15 

 5. 92 

 5. 27 

 6.35 



54 59 



45. 64 

 48.31 

 43. 84 



46. 74 



98. 85 



1957 . 



79. 53 



1958-- 



72. 20 



1959-. . 



78. 16 



1940-61 



80. 62 









WlNDSPEED (MILES/HOUR) 5 



1956 



6.55 

 6.34 



5. 61 



6. 06 



7. 08 



6.36 



5. 91 



6. 40 

 5. 44 



7. 04 



5.04 

 4 86 

 6. 06 

 5. 41 

 5.90 



4 82 

 4 38 

 3. 72 

 5.49 

 5. 53 



6. 04 

 4 54 

 5. 69 



5. 79 



6. 19 



5. 71 



5. 68 

 3.99 

 5. 19 

 5.82 



5. 59 

 5.07 



5. 16 

 5.46 



6. 09 



6. 15 



1957 



5. 81 



1958 



5. 42 



1959 



5. 81 



1939-61 



6. 67 













Relative Humidity (percen 



r )6 







1956 



51. 9 

 46. 6 

 55. 2 

 45. 4 



52. 9 



39.9 

 53. 9 

 38. 4 

 44 5 

 48.3 



43.6 

 50. 1 

 46. 

 41. 1 

 49.3 



38. 6 

 55. 5 



39. 3 

 39.8 

 48. 6 



36. 2 

 56. 2 

 51. 6 

 36. 9 

 49.3 



42. 

 71. 9 

 45.8 

 49. 2 

 51. 4 



40. 1 

 57. 6 

 44. 2 

 42. 3 

 49. 4 



46. 9 



1957 



51. 2 



1958 



50. 6 



1959 



44 1 



1940-61 



51. 4 







1 Previous November through October. 



2 Amarillo, Tex. 



3 Young screened ground pan, 2 ft. diameter. (1940-53 U.S. Weather Bureau pan data converted to Young pan by 

 a coefficient of 0.92.) 



4 11-year average for October through March. 



5 Height of anemometer, 1.75 ft. 



6 Average of 8:00 a.m., noon, and 4:30 p.m. values. 



