T. 8. Parvin on the Climate of Iowa. 367 
All the previous months of the year have revealed a tempera- 
ture below the mean, that of this month is above by 2°96°, the 
mean being 61:38°, the highest in seven years, while that of the 
Seven is but 58:42°; the lowest was in 1850, being 53°30°. 
The total of rain is 4:89 inches; the mean of seven years 
570, the maximum, in 1851, the year of highest water, 12-60 
Inches; the minimum, in 1855, 1-94 inches 
A gradual rise in the river, and a good stage of water. 
June-—This month too.shows a mean temperature (of 3-04°) 
above the average, the first being 71:79°, and the latter 68°65°, 
and was the warmest June in seven years; the coldest was in 
1851, 64:64°. 
The quantity of rain in this month is 2°68 inches, the mean 
492, The greatest was 14:20 inches, in 1851, and the least in 
1856, only -66 inch. 
The river at a good stage, but without the June rise; there 
Was None in 1854 or 55, while in 1853 it came nearly up to the 
high water mark of ’51. 
the year preceding, 68°82°. The highest crane the thermom- 
in : o j 
‘of the seven, and indeed of the last nineteen (of our reco : 
he river fell several inches during the month, and continued 
at a low stage, almost suspending navigation for this and the two 
Succeeding months. ; 
August—This month for the past year was colder than in an 
of the preceding seven, its mean temperature being 65°40°, whil 
the average mean is 70°01, and the greatest was in 1854, when it 
was 73-00°. Tt was ve dry, notwithstanding its low tempera- 
ture, the total of rain ing only 136 inches, the least of the 
Seven, the greatest (as before) being in 1851, 14-00 inches, and 
the mean 5-06 inches. : 
The health of the summer was good; in fact, a more healthy 
On or climate is searcely to be found. : gs 
.—This month, too, is below the average mean in its 
‘emperature, 4-61°, and like last Angust is the coldest of the 
ears. Its mean temperature is 59°00°, the average 63°61", 
and the maximum mean that of 1851, 68°34°. Occasionally 
