Rain, fyc, at Williams* College. 33 
AMOUNT OF RAIN AT WILLIAMS' COLLEGE FOR THE YEAR 
1847— ALSO THE TEMPERATURE AT THE SAME PLACE. 
BY A. HOPKIN. 
The amount of rain, in depth, which has fallen here during the 
past year, is 36-332 inches. This was distributed throughout the 
year with considerable uniformity, except that during the month 
of December the quantity was unusually large, being 5-885 inches. 
Nearly all this fell during the first fifteen days of the month. All 
parts of the country appear to have shared in this unusual fall of 
moisture — which, at this place, was nearly all in the form of rain. 
Up to this time, (Jan. 4,) the snow which has fallen amounts only 
to 0- 177 inches, i. e., the snow, when melted, gives only this depth 
of water. 
The dryest month here was May — amount of rain 1*55 in. — 
November Avas next in order, 1-8 in. 
The temperature has been a little above the average, taking 20 
years together. It is 46-425. I will give the temperature for the 
separate months, and will add, in a parallel column, the amount 
of rain. 
Temperature, 
Amount of 
Temperature, 
Amount of 
Fahrenheit. 
moisture. 
Fahrenheit. 
moisture. 
Januarv 24°29l 
2-685 
July 69^392 
3-464 
February 23-053 
2-4 
August 65-981 
2-691 
March 26-835 
2-65 
Sept. 56-881 
3-033 
April 40-577 
2-536 
October 52-416 
4-055 
May 56.3 
1-556 
Nov. 41-4 
1-851 
June 62.22 
3-522 
Dec. 37-76 
5-8S5 
The hours assumed for obtaining the mean temperature, were 
7 A. M., 2 P. M. and 9 P. M. Since the observations made at 
midsummer, however, which were taken hourly, day and night, 
and of w^hich some notice was given in your Journal, I have 
adopted 7 A. M., 12 M. and 9 P. M., as giving the mean more 
accurately. 
I will now give the temperature during the year, as determined 
by another method. I have made monthly observations on the 
temperature of my well. This well is about 27 feet in depth, 
and is sunk near a limestone ledge of moderate elevation. The 
observations were made near the beginning of each month. The 
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