Meteorological observations1 made at Durham, Greene County New York in Lat. 42° 28′ N for the years 1816 & 1817 by Amos Hamlin: 

1816 Months	Thermometer Farenheits scale Mean Temperature	Prevailing Wind.	Days					Weather—
			of Aur Borealis	of Rain	of Thunder	of Snow	of Tempest
January	23°12⁄31	W & NW.		2		8		Fair & pleasant, Cloudy & windy
February	26 8⁄29	NW		2		4		Variable
March	32 12⁄31	SE		3	2	5	1	Fair, Cloudy
April	44 12⁄30	NW	2	2	1	5	2	Fair, Cloudy & windy, fair
May	55 6⁄31	W & Variable	1	14	3	3		Cloudy & wet, fair
June	63 3⁄30	NW		8	4	1	1	Fair cold & wet
July	66 22⁄31	Variable		7	2			Fair cold & dry
August	68 21⁄31	W.		1	1			Fair & very dry
September	59 4⁄30	SE	1	5	1			Fair cold & dry
October	52 13⁄31	Variable		7	1	1		Fair & dry, Cloudy & wet
November	41 21⁄30	SW		5		3		Fair & pleasant
December	29 13⁄31	Calm & Varia		1	1	3	1	Fair & smoky Cloudy & wet
Result of 1816	14 Feb. Greatest Degree of Cold 7 below Zero	NW	4	57	16	33	5	The year has been very Healthy & the seasons dry and unproductive—Very few Deaths have happened in this County the Year past
	16 July Greatest Do of Heat 93
	Variation 100
	Temperature of the Year. 46°220⁄366

 

1817 Months	Thermometer Farenheits Scale Mean Temperature	Prevailing Wind	Days					Weather
			of Aur Borealis	of Rain	of Thunder	of Snow	of Tempest
January	22°2⁄31	NW		3	1	8	4	Cloudy & windy
February	18 15⁄28	N.W & Varia.	1	2		8	2	Cloudy cold & windy
March	32 4⁄31	E & Variable		5	1	3	1	Variable weather
April	45 22⁄30	W & NW		3	2		3	Fair & windy,2
May	55 22⁄31	Variable		9	1	1		Fair & smoky, Wet
June	61 13⁄30	W—SE		15	5			A wet & growing season
July	69 25⁄31	SE		8	3			Fair & pleasant
August	68 18⁄31	SW		12	4			Cloudy & very wet
September	61 18⁄30	SE—Varia		10	2	1		Fair, warm & wet
October	47 27⁄31	Variable		5		1	1	Fair & cold
November	40 23⁄30	SW		6		1		Fair—Variable
December	28 17⁄31	SE		8	1	6	1	Fair & pleasant
Result of 1817	14 Feb Greatest Degree of Cold 16 below Zero	S.E.	1	86	20	29	12
	18 July Greatest Degree of Heat 92°	The Year has been very wet & the Earth has yielded in abundance, we have a bountiful Crop of Grass, Fruit and all kinds of Grain, except Indian Corn—Th[e] season has been too wet & cold to bring Maize to maturity—The seasons have been very healthy no Disease has prevailed as an Epidemic in this County in the Year 1817
	Variation 108
	Temperature of the Year 45°290⁄365

The Village where these observations were made is situated on the Turnpike road leading from Catskill to the Susquehannah river at the foot of the catskill Mountain where the road Crosses the same & is elevated about 700 feet above the surface of the Hudson River—The mountain in that place ranges generally from N.W. to S.E. so that the Village is situated on the NE. side of the same—The Thermometer was placed on the north side of the House in the open air, about six feet from the Ground in a shade—Unwearied care has been taken to assertain the exact Temperature of each day3

The season of the year 1816 was uncommonly unproductive owin[g to?] extreme drought—Wheat & Rye have yielded a tolerable Crop—Grass [. . .] Oats about two thirds of a Common crop, but Indian Corn, Buck-whea[t] Potatoes & Garden vegitables have almost intirely failed in this p[art] of the Country

---

Temperature of the month of January 1815	23°2⁄31
Do of February 1815	28°8⁄28