CEREAL EXPERIMENTS IN MARYLAND AND VIRGINIA. 



Park is about 4 inches less than at Washington. Considerable 

 variation in the monthly distribution at the two points also occurs. 



Table I. — Monthly and average precipitation at Washington, D. C, for the ten 12-month 

 periods (crop years) from July, 1904, to June, 1914, inclusive, with the total andmonthly 

 average for each period. 



[Data (in inches) from the records of the United States Weather Bureau.] 



Month. 



1904 



1905 



1900 



1907 



1908 



1909 



1910 



1911 



1912 



1913 



Aver- 

 age. 



July 



6.25 

 2.97 

 5.34 

 2.35 

 2.20 

 3.33 



9.95 

 9.75 

 2.34 

 2.30 

 1.03 

 5.39 



6.80 

 14.36 

 .60 

 5.71 

 1.63 

 3.23 



1.55 

 4.34 

 7.15 

 2.12 

 4.16 

 4.20 



3.29 

 5.14 

 4.65 

 1.71 

 .60 

 3.63 



1.80 

 2.27 

 3.42 

 .79 

 .89 

 3.39 



3.73 

 1.26 

 2.15 

 5.74 

 2.28 

 2.64 



4.47 

 7.27 

 2.03 

 4.07 

 3.85 

 3.34 



7.21 

 1.50 

 5.86 

 .65 

 1.54 

 4.12 



3.24 

 5.42 

 2.41 

 3.37 

 2.20 

 2.29 



4.83 



September 



October 



November 



December 



5.43 

 3.60 

 2.88 

 2.04 

 3.56 





1905 



1906 



1907 



1908 



1909 



1910 



1911 



1912 



1913 



1914 





January 



February . . . 

 March 



3.59 

 2.55 

 3.31 

 2.69 

 3.22 

 4.52 



3.11 

 2.14 

 4.62 

 3.03 

 1.80 

 5.89 



2.54 

 2.31 

 2.79 

 3.61 

 5.03 

 4.86 



3.45 

 3.98 

 2.45 

 1.60 

 6.10 

 1.73 



2.84 

 3.11 

 4.76 

 2.69 

 3.77 

 3.82 



4.39 

 2.20 



.57 

 5.89 

 3.43 



4.77 



2.92 

 1.92 

 2.31 

 2.85 

 .87 

 4.55 



2.82 

 2.70 

 6.14 

 2.33 

 4.84 

 4.36 



2.85 

 1.37 



4.67 

 5.86 

 4.55 

 1.81 



4.60 

 3.05 

 2.27 

 3.20 

 1.72 

 2.32 



3.31 

 2.53 

 3.39 

 3.38 





3.53 





3.86 







Total... 



42.32 



51.35 



53.47 



42.83 



40.01 



33.81 



33.22 



4S.22 



41.99 



36. 09 



42.33 



TEMPERATURE. 



A summary of the mean, maximum, and minimum temperatures 

 for the 10 crop years from July, 1904, to June, 1914, inclusive, at 

 Washington, D. C, is presented in Table II. 



Table II. — Annual and average mean, maximum, and minimum temperatures, by 

 months, at Washington, D. C, for the ten 12-month periods (crop years) from July, 

 1904, to June, 1914, inclusive, with the annual mean and absolute maximum for each 

 crop year. 



[Data (in °F.) from the records of the United States Weather Bureau.] 





1901 



1905 



1906 



1907 



1908 



Month. 



1 



1-3 



a 



.a 



a 



9 

 o 



a 



a 



g 



a 



§ 



a 



03 



a 



a 



d 



03 



a 



03 



a 



.4 



a 



9 



a 



C3 



a 



EJ 



a 



Julv 



74.4 

 72.3 

 67.4 

 54.1 

 43.1 

 30.9 



92 

 92 

 90 

 86 

 68 

 60 



57 

 52 

 36 

 28 

 25 

 6 



76.4 

 73.6 

 68. 2 

 56.9 

 44.4 

 37.5 



95 



90 

 SS 

 88 

 73 

 59 



60 

 52 

 41 

 33 

 20 

 18 



75.2 

 76.4 

 72.9 

 56.9 

 47.8 

 37.0 



91 

 94 

 94 



82 

 75 

 69 



56 

 62 

 50 

 31 

 30 

 13 



75.8 

 72 4 

 69.4 

 52.0 

 44.5 

 38.1 



93 

 91 

 91 



81 

 65 

 68 



52 

 55 

 43 

 30 

 24 

 19 



78.0 

 73.2 

 66.6 

 58. 2 

 46.0 

 37.0 



99 

 95 

 86 

 86 

 72 

 69 



57 





5? 





41 





34 





19 





18 









1905 



1906 



1907 



1908 





1909 







29.8 

 26.4 

 45.0 

 54.0 

 65.2 

 71.8 



65 



49 

 80 

 82 

 87 

 93 



-2 

 4 

 14 

 29 

 41 

 47 



40.0 

 34.0 

 37.6 

 55.5 

 64.4 

 72.8 



71 

 64 

 62 

 87 

 92 

 95 



11 

 7 



18 

 27 

 33 

 53 



37.2 



30.2 

 48.8 

 48.4 

 59.2 

 65.9 



76 

 58 

 93 

 83 

 85 

 89 



10 

 3 



22 

 23 

 39 

 48 



34.2 

 30:8 



47.4 

 56.4 

 65.3 



71.8 



58 

 67 

 80 

 87 

 92 

 97 



11 

 6 

 25 

 29 

 39 

 52 



36.0 

 43.0 

 42.1 

 54.2 

 64.4 

 73.4 



61 

 70 

 75 

 88 

 90 

 94 



13 





17 





?6 



April 



?fi 





36 





51 







Annual: 



52.9 







55.1 







54.7 







54.8 







56.0 







Maximum 



93 





95 





94 





97 





99 





Minimum 





-2 





7 





3 





6 





13 

















- 











