327 



In comparing the maize experiments at Brookings with the climate 

 of that region, I shall use the record of the Signal Service station at 

 Hm-on, S. Dak. (lat. 44.3° N.; long. 98.1° AV.; altitude above sea 

 level, 1,800 feet), which is 70 miles west of Brookings, and the gen- 

 eral meteorological tables for Huron as calculated for this agricul- 

 tural usage are appended to this table of agricultural experiments. 



Meteorolcgical data for Huron, Dak., in 18S8. 



Mean 

 daily 

 tem- 

 pera- 

 ture. 



Dew 



point 



Rela- 

 tive 

 hu- 

 mid- 

 ity. 



Tem- 

 pera- 

 ture 

 -43° 

 F. 



Sums of tempera- 

 tures. 



Re- 

 ject- 

 ing all 

 below 

 43° F. 



Apr. 1 

 2 



30 



May 1 



2 



3 



4 

 5 

 6 

 7 

 8 

 9 



P.ct. 



73 

 73 



68 

 74 



P. ct. 



80 



In. 

 0.0 

 Tr. 



.02 



.50 



.0 



.0 



.0 



.0 



.04 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 



.0 

 Tr. 



.16 



.16 



.0 



.44 

 .22 

 Tr. 

 .0 

 .34 

 .06 

 .0 

 .0 



984 

 1,028 

 1,085 

 1,141 

 1,198 

 1,240 

 1,272 

 1,306 

 1,343 

 1,383 

 1,425 

 1,465 

 1,510 

 1,561 

 1,607 

 1,655 

 1,708 

 1,765 



913 



913 



913 



913 



913 



913 



913 



913 



958 



1,009 



1,055 



1,103 



1,156 



1,213 



