160 Meteorological Journal. 
Art. XV.—Meteorological Journal, for the year 1834, kept at 
Marietta, Ohio, in Lat. 39° 25’ N. and Lon. 4° 28’ W. of Wash- 
ington City; by S. P. Hitprern. 
BAROMETER, 
THERMOMETER. = 
Se 38 
.) gs 
5 36 
8 £3 
Months. Sip | a es Prevailing winds. : 
7 a lel gli -cimunes B | ¢ 
= (s/s pe cea 3 3 : 
se (2iEBlale| 2) siz dh Sl luli 
& [sie is| 5} 2 |S ais EI 
=e Ie le | | Ol aL | | 
January, 27.17/62} 0)62} 22) 9) 5/37 WwW. N. W. 30.00|28.90} 1.10 
February, . |43.33/72)20/52) 16] 12} 2/42 N. & 8. W. 29.80/28.90| .90 
March, . 43.73/79|18/61) 17} 14) 1/58 W.s. WwW. &S.E 30.02/29.10) .82 
April, 55.41)88)30/58} 20} 10) 1/83 s. &S. EB. 29.95)29.00| .95 
May, 49.00'93/28)65| 25) 6) 1/75 w. & 8. W. 29.90)29.08} .82 
June, 69.50/90/46)44| 24) 6) 5150 w.N. & 5S. E. 29.60/29.10) .50 
July, 75.61/94/59/35| 26) 5} 5|08 S.E.S. W. & N. 29.60/29.30) .30 
August, 72.20/95|47/48] 30) 1) 1/33|- wn. for 22 days. 29.55/29.30) .25 
September, |62.81)92/32/60| 24) 6] 0/67) wn. N. 5. & 8.5. |29.81/29.30| .51 
October, 50.11)'78/22)/56) 21| 10) 3)'75 N. &S. E. 29.80/29.00} .80 
November,  |43.33/'75|/18/57] 16] 14) 3/25 w. & S. W. 29.80)29.00) .80 
December,  |36.66/58/16/42| 14) 17) 2/13 W.E. &S.E. 29.90|29.10) .80 
Mean, 52.40 255/110'34166 
The mean temperature for the year is 52.40, being two degrees 
less than that for the year 1833. The fluctuations of the barometer 
are not very great in this climate; the greatest range usually occurs 
‘in the winter or spring months. In the past year the greatest de- 
pression was on 12th day of January, with the wind from the S. E. 
during a heavy rain storm, it then remained at 28,°.°, inches for a 
number of hours, its greatest elevation was on the 9th of March, when 
it rose to 30.02. The rise is rarely above thirty, or depression be- 
low twenty nine inches. The mean height for the year is about 
29.50, and range 1.10. 
The quantity of-rain and melted snow has been much less for the 
last year than the mean amount for the climate, bemg only 34,55, 
inches. ‘The average for a series of years being forty two inches. 
The number of fair days has been two hnudred and fifty five, and of 
the cloudy only one hundred and ten, being less by thirty three, 
days than that of the year 1833. ‘The mean temperature for the 
winter months is 35.72, for the spring months 49.38, for the sum- 
mer months 72.03, and for the autumnal 52.08. ‘The spring months 
have been unusually cold, nearly five degrees colder than those of 
the year 1833, while the winter period is more mild by nine and a 
half degrees. 
