90 



BULLETIN 12.33, U. S. DEPARTMENT OF AGRICULTURE. 



Table 26. — Mean soil temperatures at the control station {F-l) — 2 and 4 feet. 



Year. 



03 , 







05 



a 



a 



03 

 1-5 



>> 



3 



2 



B 

 1 



Pi 



< 



03 



H-9 





a 



3 

 < 



OJ 



a 

 9 



CO 



y 



£} 

 O 

 



O 



S3 



I 



S 



1 



Si 

 ft 



"3 



D 



a 

 § 

 d 



s 



.3 = 



Pi 



w 



1910 



f 1 



2 

 1 3 



[Month. 



f 1 



2 

 3 



Month. 



f 1 

 2 

 3 



Month. 



f 1 



2 



! 3 



[Month. 



f 1 



2 

 3 



[Month. 



f 1 

 2 



1 3 



[Month. 



f 1 

 2 

 3 



Month. 



f 1 

 2 



1 3 



[Month. 



f 1 



2 



3 



[Month. 



f 1 

 2 

 3 



Month. 



f 1 

 2 



1 3 

 [Month. 



1 1 



[Month. 





30." 64 

 30.93 



31.98 



34.82 

 40.83 



40. 5l'44. 47 

 40. 20.46. 18 

 43. 64|47. 53 



55.25 



57.59 

 60. 72 



59.27 



60.24 

 62.01 



59.07 



58.28 

 58.44 



59.22 

 59.62 

 56.55 



55. 53 45. 92 

 54.03 43.37 

 47.33141.44 



38.54 

 37.04 

 33.94 











41.25,46. 11 J57. 85 









(0 



30.75 



36.04 



60.55 



58.59 



58. 46)52. I4J43. 58 



36.42 



46.10 



59.01 



1911 



31.21 



32.96 

 34.80 



36. 68 

 35.77 

 33.83 



33. 70 40. 27^4.74 55. 47 

 35. 90 39. 5S 50. 59,58. 03 

 36.85 42.83,50.85158.41 



58.29 

 58. 43 

 57. 33 



60.67 

 61.51 

 57.07 



.56. 85 55. 37 

 58.60,52.45 

 58. 04,45. 22 



40.49 

 39.99 

 37.81 



34. 37 

 33.11 



32.19 







1 1 1 







33.05 



35. 54 35. 53 40. 89 48. 80 57. 30 



57.99 



59.66 



57. 83 50. 83 



39.43 



33.19 



45. S4 



58.21 



1912 



29. 62 

 30.23 

 31.35 



31. 27 30. 86 35. 82(41. 66 

 31. 54 31. 80 38. 10 39. 14 

 30. 57 32. 06I36. 49 50. 22 



51. 94 56. 52 

 48.6158.22 

 51. 10 58. 05 



58.31i59.92 48.83 

 58. 09 54. 18 47. 15 

 59.76 49.3145.07 



39. 93 34. 52 

 38.9133.05 

 36. 73 30. 10 





























30.43 



31.14 



31. 59,36. 80 



43.56 



50. 55 57. 61 



5S. 75,54. 47 46. 95 



38. 52 



32. 4S 



42.74 



.56.05 



1913 



29. 43 

 28.65 

 29.19 



29. 41 

 30.33 

 30.96 



30.71 

 31.92 

 32.02 



36. 19 



37.40 

 40.33 



44.07 

 46.17 

 51. 05 



52. 09 61. 51 

 51.12 61.94 

 55.0158.07 



61.94 5S.S9 4S. 49 

 59.68.54.52 46.21 

 59.10J48.7142.52 



40.2v 

 40. 45 

 3S.11 



35. 82 

 35. 09 

 34.13 



















29.13 



30. 19 



31.56 



37. 97 



47.22 



52. 74 60. 43 



60.20 54.0445.64 



39. 61 



34. 9S 



43.64 



57.94 





33. SO 



33.50 







33.' 49 



36. 75 

 35. 97 

 39.41 



39. 12 

 43.66 

 49.19 



.53.33 

 56.39 

 61.63 



57.84 



















1914 















































37.37 



44.16 



57.12 













































31.02 32.46 

 31.34 32.07 



31. 81 37. 91 

 33. 61 38. 25 



42. 81 

 45.15 

 49.77 



53.62 58.69 

 .54. 35 59. 71 

 57. 37(58.86 



60. OO08. 72 

 59. 39 '56. 73 



52.06 

 49 96 



41.66 

 40.68 

 28.52 



35.81 

 34.57 

 32.59 









31.78 



31.57 



35.04 



40.54 



58.59 



53.15 45.04 













31.39 



32. 02 



33.54 



38. 90 



46.03 



55.11 



59.08 



59.10 



56.68 

 57.11 

 57.01 



56.2048.89 



.56. 51 .56. 04 

 56. 95 53. 63 

 56.85 50.76 



40.29 



47.33 

 45.37 

 42.60 



34.27 

 40.78 



44.57 



57.93 











55.93 







1914 











































56.56 



56.92 



56. 77 53. 40 



54. 04 50. 65 

 54.16 48.09 

 53. 78,46. 55 



45.10 



38. 50 































32. 36 

 32. 22 

 32.43 



32. 97 

 35. 53 

 37. 68 



39. 41 

 41.14 

 42.88 



43.84 50.83 

 46.53 53.95 

 49.89 54.20 



53.64 

 53.25 

 52.91 



46. 85 

 44. 07 

 41.90 



40. 01 

 38. 70 

 36.84 

















1915 





















32.34 



35.39 



41.20 



46. 75 53. 03 



48.89 55.40 

 50. 7256. 42 

 52.93 57.05 



.53.26 



.53.99 48.37 



44.27 



38. 52 





51. 31 



1916 



35. 70 

 35. 01 

 34.02 



33. 27 

 33. 22 



34.55 



35.66l39.41 



38. lo 38. 83 

 40. 63 40. 27 



40. 77 

 43.94 

 44.35 



57. 08 

 57.18 



55. 98 53. 99 

 55.1151.95 

 53. xn 4S. 35 



47.28 

 44. 22 

 41.42 



39. 81 

 3a 08 

 35.38 











.- 









34. 88 



33. 65 



38. 19139. 50 



32.9235.58 

 32.82B7.92 



I7.53B8. 1 1 



37. 35 3S. 02 

 34.30l36.14 



43. 06 50. SoloO. 32 



50. 85|54. 96 51. 33 



56.7054.0052.43 

 55.41 54. if. 51.91 



54. 13 .".'» 



44. 31 



37.67 



45. 13 



54. 80 



1917 



34. 00 

 33.98 

 33.09 



32. 89 

 33.00 

 33.04 



38, 13 

 37.84 



10.37 



10. 96 52. 95 



16. 20 53. 86 

 50. 09 5* fifi 



46. .50 

 15. 36 

 42. 95 



41.46 

 38. 96 



13. 25 









45. 75 













33. 06 



32. 97 



38.84 



54. 21 



55. 37 



53.71 



51. 14 



44. 94 



39.73 



a. 00 





36.59 

 34.65 



33. 75 

 34.23 



10. VI) 



13. 98 

 17.45 



48. 72 



51.76 

 54.35 



55. 92 



55. 67 



55. v 7 



.56. 90 

 56. 35 

 .56.92 



56.69 



.53.59 











1018 





























36. 75 



34. 29 



11.15 



51. 61 



55. 82 



56.73 















54.86 





35. 19 

 33.92 





39. 78 

 11.72 

 18.76 



15.60 

 18.81 

 BL82 



.53. 78 

 55. 0,5 

 55.71 



56. 02 

 55. 74 



55. 10 



55. 13 53. 28 



46.99 

 1 1. 76 

 42.22 



10.52 

 38. 53 

 37.06 





• July 

 in, 1911 '.. 



35.21 



37. 02 



3S. 35 



55. 10 



64.86 



51. 40 

 18.97 













86. 10 



33. 55 



35. 18 



87, 17 



11.82 



a. 74 



54. 87 



55.00 



51.80 



51. 14 



44.66 



38.65 



44.27 



53.28 



1 to be normal. 



i , , 1910, to Julv 10, 1914. 



