BULLETIN 636, U. S. DEPARTMENT OF AGRICULTURE. 



Table I. — Dates of spring and fall frosts , annual rainfall, and mean annual temperature 



at Payette, Idaho. 



[Altitude, 2,159 feet.] 













Highest tempera- 



Lowest tempera- 





Last 



First 



Annual 



Annual 



ture. 



ture. 



Year. 



frost in 

 spring. 



frost in 

 fall. 



urecipi- 

 t at ion. 



temper- 

 ature. 































Degrees. 



Date. 



Degrees. 



Date. 



1900 



Apr. 13 



Sept. 25 



.10.60 



53.7 



104 



July 30 



10 



Dec. 31 



1931 



June 4 



Oct. 16 



13.50 



53.3 



106 



July 23 



5 



Feb. 8 



1902 



May 1 



Sept. 16 



14.04 



• 51.2 



102 



June 23 



-13 



Jan. 2S 



1903 a 



















1904 



June 23 



Oct. 16 



18 



52.1 



107 



"Aug. 13 



- 3 



Jan. 4 



1905 



May 21 



Oct. 8 



8.86 



51.2 



111 



July 23 



- 2 



Feb. 11 



1906 a 



















1907 



Mav 2 



Sept. 14 



9.95 



51.3 



103 



Aug. 1 



- 1 



Jan. 16 



190S 



Apr. 29 



Sept. 26 



7.52 



50.7 



108 



July 31 







Feb. 1 



1909 



May 17 



Sept. 18 



10 



50.6 



104 



July 22 



- 2 



Dec. 28 



1910 



Apr. 6 



Sept. 29 



10.38 



50.1 



107 



July 13 



-26 



Jan. 3 



1911 



Apr. 16 

 May 18 



Sept. 26 



9.74 



48.9 



104 



July 17 



- 3 



Dec. 21 



1912 



Sept. 16 



13.15 



48.4 



101 



...do 



-23 



Jan. 8 



1913 



May 17 



Sept. 18 



14.26 



48.9 



102 



Aug. 24 



- 7 



Jan. 6 



1914 



June 5 



Oct. 24 



5.90 



50.3 



103 



Aug. 14 



- 8 



Dec. 8 



1915 



May 4 



Sept. 14 



9.67 



50.9 



103 



July 22 



— 



Dec. 30 



Average (14 years). . . 



May 10 



Sept. 2.8 



11.11 



50.8 



104.6 



July 29 



- 5.2 



Jan. 10 



a Data incomplete. 



FARM ORGANIZATION. 



The Payette Valley is a comparatively old and established farm- 

 ing section. It is one of general farming, although fruit occupies an 





Fig. 4.- 



A large alfalfa field near Payette at the time of harvesting 

 8 tons per acre in this region. 



the third crop. Alfalfa often yields 



important place in its agriculture. (See fig. 3.) The fruit areas 

 are limited and for the most part are located near a few shipping 

 stations. The average size of the farms included in this investigation 



