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Least & greatest daily heat by Fahrenheit's thermometer. |
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[Supposed to have been made at Monticello.]
| 1789 | Oct'r 1 | Ice | Snow Birds | Spoiled tobacco on the scaffold. |
| 1792 | Sep. 21 | None | None | Tobacco destroyed totally out of green belt. |
| 1808 | Sep. 27 | None | None | Tobacco, except in green belt, untouched. |
| 1816 | Oct'r 7 | thin ice | Snow Birds | Late corn spoiled; all safe in green belt. |
| 1823 | Sep. 29 | None | None | Green belt unaffected; pumpkin vines frozen. |
In the month of August, 1801, I carefully examined the temperature of my well water in the District of Maine, and found it at 52 degrees of Fahrenheit's thermometer.
The depth of the well is 28 feet; the depth of the water at this time was 4 feet; the latitude of the place is 44 22 North; longitude about 69 40 W.
In September 1802 I examined with the same instrument, and with equal care, the temperature of the well water, where I live, on the Capitol hill, and found it at 59° of Fahrenheit. This well is upwards of 40 feet in depth, and had at the time about 7 or 8 feet of water.
My well, in Maine, is an open draw well, without a pump; the well on the Capitol hill has a pump, and is close covered.
The temperature of the water of Kennebeck river, the latter part of August, was 7212 by Fahrenheit.
The rains of every month, (as of January for instance,) through the whole period of years, were added separately, and an average drawn from them. The coolest and warmest point of the same day in each year of the period were added separately, and an average of the greatest cold and greatest heat of that day was formed. From the averages of every day in the month, a general average for the whole month was formed. The point from which the wind blew was observed two or three times in every day. These observations, in the month of January for instance, through the whole period, amounted to
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