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13
The weather during the past year has been somewhat remarkable,
and very different from either of the two preceding years.
As regards mean temperature it varied but little from the average;
but whilst during January it was nearly 4½ degrees below the
mean, and also below the mean in April, May, June, and July, it
was considerably above the average in February, March, and
October, especially in the latter month. The highest temperature
recorded, 87°.4, was registered in August, and the lowest, 15°6,
in January, so that the extreme range for the year was 71.8 degrees.
In 1859 the highest temperature was 94°.6, and the lowest 15°., so
that the range was greater, being 79.6 degrees; but in 1860 the
highest temperature was only 76°.4, and the lowest 5°.6, (being
10 degrees below the extreme cold of 1861,) so that the range was
70.8 degrees. The mean of the highest temperature recorded in
each month was 69°.1, and of the lowest 32°.3; whilst the mean of all
the highest was 58° 7, and of all the lowest 42°.5, so that the average
daily range was 16.2 degrees. The adopted mean temperature
for the year was 49°.7, and the dew point was 43°.8. The general
direction of the wind was westerly, and the total rain.fall 21.22
inches. Rather more ozone was registered than during the previous
year. The mean pressure of the atmosphere, as indicated by
the barometer, was greater than in 1860, having been 29.897
inches against 29.767 in 1860. The barometer was highest in
January, April, May, and December, and lowest in February,
March, July, and November; especially in November, when the
rain.fall amounted to the enormous quantity of 5 3 inches, or
about one quarter of the whole sum for the year.
I remain, Gentlemen,
Your obedient servant,
March 13th, 1862. JOHN W. TRIPE.
Received and ordered to be printed and distributed,
J. J. TANNER,
March 13 th, 1862. Chairman.