T. S. Parvin on the Climate of Towa. 365 
in.—T his season was ve vi The total quantity of rain 
was only 6°78 inches, while the mean reaches 17°05 inches, an 
excess over the last season of 10-27 inches. 
he crops, were, notwithstanding the summer drought, more 
than an average yield both of corn and small grain, and the three 
or four dry seasons we have had has abundantly proved that the 
soil and climate of Iowa are unsurpassed on the continent for 
farming purposes, 
The prevailing winds are southeast and southwest. 
UTUMN. Temperature—The temperature of this season, too, 
Was quite uniform, being less than a degree below the mean. 
ptember was colder than the mean by 4°, and there were sey- 
eral frosts this month which shortened the corn crop somewhat. 
Lvain.—September and the first half of October were very dry, 
but in the middle of the latter month the rains set in, and t 
ter half of October and the whole of November were unusu- 
ally wet, exceeding the mean by near an inch. The total is 
1149 inches, pow the mean 10°59 inches. 
ow.—In € ear we have had snow in November; in 
ine 520 eo mean 2°93 inches, an excess therefore of 2:27 
oa was 3 7. 52°; that of the seven years past, 20°45°. The cold- 
est January was the past; (the lowest range of the capi nerd 
inseven years was —29°, Feb b. 4, 565) the warmest in 1858, 2 27-05°. 
is the coldest month of sixteen years. In 64 and ’66 there 
Was no rain, in 1850 there was 4°40 inches, the mean being 1-41 
Mm 
In 1851 there was - ep inch of snow, while in 1855 there 
Were 17:50 inches, in ’5 ap. seanane the mean is 5°80 inches. 
Ri 
River low and closed all em ee tee your ic AG 
—The m eae 08, 
Sheetenn 93°73; that of 1856 being 8-70 below the mean, 
and the coldest February for seven years past; the warmest 
Was that ast 1852, the mean being 29-00. 
, ount of rain for this a gpa including melted snow, 
is 4-34 lean ‘in 1851 it reached to 4°50 inches, and in 1855 
