_ 
T. 8. Parvin on the Climate of Iowa. 361 
3. Miscellaneous Remarks, 1856, 
Lowest temperature, povwee 4, -29° —_ tent ee, aaie 44°] 
- Highest 97° | Average meari 8 years, d72-12 
Range of « - 196° aire 4°91, "1640 50°, 1846] 
Lowest height } ’r, Nov. 21, _. >| Ran nge of barometer, - - 1°20 inch. 
= tach therm. attach d, acgoeats eight" -  - - 290 * 
ht oh 25, 30 00 
inch : therm. besten ~d, - 
Frost last in the e Spring, - A yt : i 
; pri : Depth of ground frozen, - 2 ft.'6 in. 
Frost first in she Fall, - Sept. 24 | Thickness of ice onthe river, 2 ft. 8 in, 
Disappearan: grnd “May 1 
Flow adsop ese 0A le, May 12; iad 
12; Pear. . fF . ar Rai ees.— Apple, May Cherry, May 9; Peach; Plum, May 
Total L wenty of rain inches, 36°74 in.; in 1855, 24°55 in.; least 1854, 21-1 in; 
greatest 1851, 72:4: mean, 41-90 in. 
5 et and February. v—Intensely cold; began to moderate about the 20th of 
February. Mare —River high; each and 
Paka ably injure ured. August, an 
Weather Saabs until the middle of October.  Modtides —Very wet; edie stage, 
December. ery rainy and changeable; more snow than for many winters. 
River Statistics. 
Mississippi closed, Dec. 6. In 1855, Dec. 25 The greatest rise, May, 
March 29, 
3 ft. 
open ’ fall, September, ye “ 
No. of days closed, 94, double that of 1855. 
sdbeins rise and fall, - 4, Sin. 
| Earliest closing - 20 years), Pe oy. = 1842, — time of closing, dan. 29, 1846. 
Latest , 1850. 
- April 8, 1843. 
es cee Det aaa 31. March 1 
od Missi closed, 22 da 
in Rien Phi . » 
Average period Missinsippi closed, 60 days. 
eae Temperature of each of the Months and the Seasons for the years 1850-1856 ; 
also of each for seven years, with the ther set between naan fi the yeor 1858 
and those of the whole e period of sev 
“ 
Deca f 
Longest period Mississippi emai 138 
days, in 1842-43. 
| Moses AND Srasons, era | Diff. 1856 | 
Mit | es 1852/1853 1854) 1855) 1856|7 years) and mean. 
: ce 5 
December,"1849, ates 18°34)19-77 ar'aios is) 67|26°76|29°40| 22-49 | — 6:86 
rat eee SEIT |paaoles-o7 19°60)27-05)16'16|24-46) 7°52] 20-45 | 12-98 
Winter Tagg 20007" os BO eRaT AS 29-00)23 Pye 15°64}15-03| 23-73 | — 840. 
inter mean,. , [23°19 23°82 23-32 24-1923°77|29-28|14-98| 22-92) — 724 
March, vealwe te recs 82 60/88-22 36° ‘15 38° 24'39°86|30-51/25°80| 38°77 | — 7°97 
hae ver apt 2249524274 4781 51°18 5895}40:37| 4110 4 297 
2 pec 58:30 '58-19'59°96'55-65160 03/60-42/61'38| 58-42 | + 206° 
| Spring mean, 2.1212) | 66 6446284560 S00|4828 4591 4640} ~ ‘81 
) eS wart glee wees [7017/6464 6/87-02/71°79| 68°65 | + 3-04 
dap osceceeee 7. 71-6: 6/73°01/73:51 7281) + 70 
Angust, os ir9-09 0}70'35)65:40| 700Y} ~ 5°61 
Summer mean, ...... 72-20 68°45 ,69°3 70°16/70°23| 7044] — “21 
oo} S-eemag eee s0-83|68245 1/68-23|67-92/59°00| 68°61 | — 461 
te 1415 50 35 59145 543 vrialseenl det + 318 
1 2h coc of PE PEE 5513: 34°50 3/36°83/37°85/39°79| 36°60 | — 281 
| Autumn mean,. 1 nanan 47°64|49°13/53°13]50-96|48°21| 49°14 | ~ 93 
Annual mean, ’. | 646°65/47'31/49°81|47°92/44°78| 47-05 | — 2-39 ' 
ot eteRidiuiaaee au rt ee 
* All killed in this region by the severe cold of last winter. 
SECOND SERIES, VOL, XXIII, NO. 69.—MAY, 1967. 
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