814 



Agricultural Manual 



The observer at Penn Van was Ralph E. Eastman, and at 

 Keuka Park, Dean L. Myers. 



Average dates for the last killing frost in spring and the first 

 in fall are May 5 and October 16, respectively, giving a growing 

 season of 164 days. 



The following table, compiled from observations covering the 

 periods 1829-1904 and 1907-09, shows both normal and extreme 

 temperatures and precipitation. 

 Record of Temper vtubs and Precipitation at Penn Yan and Keuka Park 







Te 



MrERATrRE 





Precipitation 







Aver- 

 age 



Highest 



maximum 



Lowest 



minimum 



Average 

 inches 



Amount in 24 

 hours 



Snow, 





Degrees 



Year 



Degrees 



Year 



Greatest 

 record, 

 inches 



Year 



depth 

 in inches 



March 



April 



24.2 

 24.1 

 33.4 

 44.7 

 55.2 

 65.6 

 71.8 

 68.3 

 63.1 

 50.9 

 39.5 

 28.2 



47.5 



64 

 60 

 75 

 88 

 92 

 96 

 99 

 99 

 96 

 92 

 75 

 68 



99 



1909 



1903 



1903 



1899 



1899* 



1900* 



1899* 



1899* 



1900 



1900 



1909 



1897 



1899* 



—15 



—17 



—10 



14 



25 



37 



38 



41 



35 



23 



13 



—2 



—17 



1904 



190S 



1900 



1909 



1903 



1907 



1898 



1907 : 



1899* 



1907 



1903 



1899 



1908 



1.67 

 1.61 

 1.91 

 2.30 

 2.86 

 3.34 

 3.33 

 2.91 

 2.49 

 2 60 

 2.13 

 1.81 



28.96 



95 

 1.34 

 2.84 

 1.78 

 1.35 

 1 . 65 

 2 76 

 2.36 

 1.54 

 1.73 

 2.49 

 1.16 



2.81 



1902 

 1900 

 1900 

 1901 

 1909 

 1903 

 1903 

 1901 

 1898 

 1898 

 1900 

 1901 



1900 



9.5 

 9 2 

 S.8 

 4.2 



May 



0.4 



June 





July 





August 



September. . . . 



October 



November. . 

 December 



Year 



T 



2.5 

 11.8 



46 4 







* Also earli 



er ye ir- 



















TOPOGRAPHY AND NATURAL CHARACTERISTICS 

 The surface of Yates County consists of a series of ranges 

 extending from Steuben County in a northerly direction and 

 gradually declining from a height of about 1,700 feet above 

 tide on the southern border to a level of the undulating region 

 near the foot of Seneca Lake. The uplands, except in the extreme 

 western part, are smooth and arable to their summits. The 

 valleys between them are wide and exceedingly fertile, and the 

 northern part of the county is a fine rolling region. 



The principal streams in the county are Keuka Lake Outlet, 

 Kashong Creek, Big Stream. Rock Stream, Flint Creek, and 

 West, River. Seneca Lake, forming the eastern boundary of the 

 county, is 447 feet above tide and Canandaigua, forming a part 



