In comparing the maize experiments at Brookings with the climate 
of that region, I shall use the record of the Signal Service station at 
Huron, §. Dak. (lat. 44.3° N.; long. 98.1° W.; altitude above sea 
level, 1,300 feet), which is 70 miles west of Brookings, and the gen- 
eral meteorological tables for Huron as calculated for this agricul- 
327 
tural usage are appended to this table of agricultural experiments. 
Mean Rela- 
Date. | tone | Dew | fine bwina|ctonds. 
a pera- point mid- 
ture. ity 
1888. Oni SEE tet. || MaLesel) search. 
ArT el 31 23 73 303 80 
2 34 26 73 144 83 
3 44 34 68 97 3 
4 52 44 74 441 57 
5 37 26 66 287 33 
6 40 27 64 127 0 
Uf 46 29 58 210 13 
8 53 32 55 178 43 
9 45 39 81 312 67 
10 45 27 55 237 33 
11 35 17 52 273 7 
12 48 32 59 394 40 
13 52 36 7 275 0 
14 58 By 44 334 0 
15 47 33 63 260 3 
16 53 37 59 469 60 
17 39 21 55 473 13 
18 34. 20 57 184 37 
19 34 19 58 188 0 
20 49 29 53 318 23 
21 59 35 48 154 70 
22 49 36 64 325 63 
23 44 28 56 179 60 
24 57 31 42 644 40 
25 56 39 55 698 63 
26 57 40 58 298 20 
27 42 39 87 364 100 
28 32 27 81 531 100 
29 34 27 73 300 100 
30 37 26 67 159 0 
May 1 40 35 81) 385 100 
2 42 39 90 312 100 
3 40 35 84 409 100 
4 45 32 62 247 0 
5 51 34 56 209 70 
6 46 37 73 347 100 
7 48 in 70 | 259 70 
8 53 32 50 186 63 
9 57 31 45 195 67 
Rain. 
Meteorological data for Huron, Dak., in 1888. 
Sums of tempera- 
tures. 
Tem- All 
Frosts. ture at ee 
p. | All fing all pera. 
43° F, ture 
—43e 
Ia). 
Date. SII Maes | Sean 
a eee 31 0 0 
sees mea| See ee 65 0 0 
- eee 1 109 44 1 
Ween cone 9 161 96 10 
ee pel eee 198 96 10 
GVizeccaas 238 96 10 
7 3 284 142 13 
ee oe rome 10 337 195 23 
Poe OL 2 382 240 25 
10 2 427 285 27 
LD ere os 462 285 27 
ees 5 510 333 32 
mee ote tye 9 562 385 41 
Bee a 15 620 443 56 
he 4 667 490 60 
5 eee 10 720 543 70 
i 2 Sao 759 548 70 
JRE a eee 793 543 70 
LOG Se aoe 827 543 70 
20 6 876 592 76 
uae ee: 16 935 651 92 
See 6 984 700 98 
23 1 | 1,028 744 | 99 
eS Eee 14 | 1,085 801 113 
Be ees: 13 | 1,141 856 126 
Pelee 14 | 1,198 913 140 
Seer | Rae pee 1, 240 913 140 
Tt | Mea f 1,272 913 140 
SSE Pee. Sees een 913 140 
SOE bese 1,343 913 140 
Fae eel 2 eee 1,383 913 140 
eee Se Sacee S420 913 140 
Cee ts ees JS 1, 465 913 140 
4 2 | 1,510 958 142 
See 8 | 1,561 | 1,009 150 
be ee 3,| 1,607 | 1,055 153 
esis oe 5 | 1,655 | 1,103 158 
pb Stel 10 | 1,708 | 1,156 168 
Le 14 | 1,765 | 1,213 182 
