321 



Mrtvorolof/iiitl (Ititn for II uron. Dak., in /,S.S7— Contiiiuod. 



1887. 

 Apr. 12 

 13 

 14 

 15 

 16 

 17 

 18 



Mean 

 daily 

 tem- 

 pera- 

 ture. 



May 1 

 2 

 3 

 4 

 5 



Rela- 

 T-.„™ tive 

 D?w Yxn- 

 POii^t- mid- 



ity. 



F. \Perct. 

 43 72 

 47 93 



37 89 



30 75 



25 



59 

 50 



26 53 



27 54 

 40 81 



46 



45 \ 



31 



26 



35 I 

 34! 



43 I 



49 



40 



44 

 48 

 51 1 



Clouds. Rain. Frosts 



58 



Perct. 



67 



100 



67 



100 



100 



70 







33 



10 



70 



50 



67 



80 







17 



Posi- 

 tive 

 tem- 

 pera- 

 ture 

 (T 

 -43° 

 F.). 



Sum of daily tem- 

 perature. 



°F. 

 11 

 6 



All 

 above 

 43° F. 



874 

 921 

 967 

 1,002 

 1,034 

 1,068 

 1,109 

 1,154 

 1,310 

 1,268 

 1,338 

 1,411 

 1,468 

 1,507 

 1,560 

 1,621 

 1,684 

 1,756 

 1,831 

 1,901 

 1,973 

 2,047 

 2,118 

 2,186 

 2,251 



2,:»8 



2,370 

 2,414 

 2,465 



2,601 

 2,676 

 2,7;« 

 2,792 

 2,852 

 2,908 

 2,970 

 3,(K36 

 3,102 



971 

 1,028 I 

 1,028 j 

 1,081 

 1,142 

 1,205 

 1,277 

 1,352 

 1,422 

 1,494 

 1,568 

 1,639 

 1,707 

 1,772 \ 



1,891 

 1,935 

 1,986 

 2,049 

 2,122 

 2,197 

 2,256 

 2,313 

 2,373 

 2,429 

 2,491 

 2,657 

 2,623 

 2,684 



All 

 posi- 

 tive 

 (tem- 

 pera- 

 ture 

 above 

 43°F.). 



'F. 

 94 

 100 

 100 

 100 

 100 

 100 

 UOl 

 103 

 107 

 110 

 110 

 110 

 110 

 110 

 112 

 125 

 140 

 167 

 197 

 211 

 211 



347 

 376 

 407 

 435 



496 

 515 

 516 

 524 

 544 

 574 

 600 



T08 

 731 

 749 



2667—05 M- 



-21 



Light. 



