36 BULLETIN 13:33 U. S. DEPARTMENT OF AGRICULTURE. 



Table 5. — Classification of days according to air tem/jcratures. 





Class. 







Record by months in 



degrees Fahrenheit. 







3 

 C 



a 



p 



c- 



a 



Year. 



es 



3 



a 



OS 



a 

 | 



p 



,3 



u 



*? 



S 



6 



~ 



xn 



3 

 tx> 



3 

 < 



91 

 02 



oj 

 | 

 

 C 





 fix 



g 



c 



- 



a 







p 





No thawing... 



Freezing 



Cold.... 



I 



14 

 9 

 5 



2 

 3 

 15 



11 



2 



3 



17 

 6 

 2 



2 

 3 

 5 



15 

 6 





 

 

 4 



18 

 8 

 

 

 

 5 



20 

 5 

 

 1 

 2 



11 



16 





 

 



1 



9 



21 

 

 

 

 4 



27 

 

 

 

 

 3 



24 

 4 

 

 

 

 4 



18 

 9 

 

 

 

 1 



25 

 5 

 

 

 

 7 



18 

 6 

 

 

 

 1 



13 



17 

 

 

 

 



18 



13 





 



1 

 1 



19 

 10 

 

 

 

 6 

 14 

 11 

 

 

 

 3 



22 

 6 

 

 

 

 

 21 

 10 

 

 

 

 

 22 

 9 

 

 

 

 9 

 22 





 

 1 

 5 



21 

 3 

 

 

 

 5 



24 

 1 

 4 

 4 

 3 



10 

 9 



3 

 1 

 4 

 11 

 12 



2 

 8 

 9 

 10 

 1 



6 

 it 



42 

 50 

 76 



B8 

 42 

 44 

 71 

 79 

 54 

 100 

 17 

 53 

 "7 

 66 

 60 

 80 

 10 

 62 

 71 



or, 

 68 

 76 

 22 



""i 



1910 





7 







53 





Warm 







41 





1 No t ha wing. . . 



Freezing 



Cold..; 



3 

 9 

 15 

 4 



11 

 11 

 6 



3 

 13 



13 

 2 



2 

 6 



14 

 8 





 1 

 8 

 10 

 12 



4 

 5 

 11 

 8 

 3 



4 

 15 



9 

 2 



17 

 11 

 3 





1911 



Cool 



10 







70 





Warm 















16 





No thaw ing. . . 



Freezing 



Cold 



8 

 14 



9 



11 



17 

 1 



9 



19 

 3 



1 

 13 

 13 



3 



2 

 4 

 6 

 11 

 8 



3 



1 

 12 

 14 



1 



2 

 9 



13 



3 







' "l 

 2 



1912 



Cool 



19 





Moderate 









70 



















10 





No thawing... 



Freezing 



Cold 



14 

 12 



5 



14 



11 



3 



X 

 12 

 9 

 2 



3 

 7 

 8 

 12 







1 

 10 

 11 



9 





 

 3 

 8 



16 

 3 

 

 

 1 

 3 



22 

 4 

 

 1 

 4 

 -10 



15 



2 

 5 



10 

 12 



4 

 6 

 8 

 13 



2 

 9 

 11 

 8 



10 

 11 



4 



...._. 



1913 



Cool 



1? 





Moderate 





05 





Warm 













??, 





No thawing... 



Freezing 



Cold 



..... 



9 

 14 

 3 







6 



7 

 8 

 9 



2 

 1 

 9 

 11 

 8 





 

 2 

 5 



21 

 2 

 

 

 5 

 8 



17 





 3 



8 

 16 

 4 



2 

 5 

 15 



8 



























1 



5 

 76 



1914 



Cool 













Moderate 









102 





Warm 













20 20 











18 

 9 

 4 







< 



3 

 6 

 7 



10 

 5 





 4 



13 

 5 



5 

 8 

 B 



9 



9 



J 







Freezing 







..... 



• 

 6 



1 





Cold 







4 



1915 



Cool 







28 





Moderate 









63 





Warm 













6 





No thawing... 



Freezing 



Cold 



11 

 13 



3 



4 



3 



14 



12 



3 



9 

 5 

 14 



7 

 4 

 11 

 8 



2 

 2 

 6 

 12 

 9 





 

 2 

 9 



15 

 4 

 

 1 

 2 

 8 



13 

 6 





 

 

 5 



22 

 4 

 

 

 

 6 



21 

 4 





 1 

 3 

 9 

 15 

 2 

 

 

 1 



11 

 18 



4 

 3 

 9 

 10 

 5 



10 



5 



6 



54 



64 



65 2 



1916 



Cool 



77 16 





Moderate 



70 57 





Warm 













27 27 





No thawing... 



Freezing 



Cold 



11 

 14 

 6 



11 



10 



6 



1 



12 



1 



1 



5 

 9 



9 



7 



S 



8 

 11 

 5 

 2 



1 



7 



7 



10 



6 



2 

 5 

 15 



5 



'.' 

 13 



4 



52 

 76 



7"> 

 01 

 78 

 23 



1 

 2 



1917 



Cool 



15 









01 





Warm 















33 





No thawing.. . 



Freezing 



Col<l 



1!) 

 G 

 4 

 2 



6 

 11 

 9 

 2 



2 

 10 

 12 



7 































































1918 



Cool 



























Moderate 



























1 Warm 

































No thawing. . . 



Freezing 



Cold 































10.2 

 L0.9 



7.9 

 2.0 



10.0 

 11.9 



6.0 

 0.4 



7.1 

 11. 1 

 8.2 

 4.7 



3.2 

 6.6 

 12. 1 

 7.8 

 0.3 



2.0 

 3.2 

 7. s 

 10. fl 

 7.4 



0.0 

 I). 1 

 1.8 

 7.2 

 16.9 

 3.7 



0.0 

 0.0 

 0.0 

 2.6 

 19. 

 9.4 



0.0 



0.0 

 0. 1 



3.8 

 20.4 



0.7 



0.6 

 0.9 



7.9 



17.1 

 1.0 



2.4 

 3.7 



11.9 

 4.5 



3.3 



8.6 

 11.1 

 0.0 

 0.1 



11.9 



10.7 

 7.C 

 0.8 



07. 9 . 1 



7;.'. 1.9 



Average 



Cool 



66, 6 14.7 





Moderate 



Warm 



85. 7| 04. 4 

 20. SI 20. 6 























365. 3 



102.0 



'January, 1914, ha I d OD record of tan. 1-20 expanded. 



It is seen that considerably more than half the days of the growing 

 season have a moderate mean temperature, and that their number 



docs not vary greatly from year to 

 number of warm days practically al 

 Beason, lias varied in 8 years from 6 to 11 per year 



year. On the other hand, the 

 of which occur in (ho growing 



Whether or not 



