FARM MANAGEMENT ON IRRIGATED FARMS 5 
Table 1. — Climatic conditions at the Sunnyside station Yakima County, Wash. 
Temperature 
Date of 
last 
killing 
frost in 
spring 
Date of 
first 
killing 
frost in 
fall 
Year and 
average 
Maxim 
um 
Minimum 
Mean 
Pre- 
cipita- 
tion 
Frost- 
free 
period 
Month 
°F. 
Month 
°F. 
°F. 
1921 
1922 
1923 
August. .- 
July 
August ... 
100.0 
107.5 
104.0 
December. 
December. 
February . 

—11.5 
2 
52.0 
49.9 
52.7 
Inches 
6.92 
4.85 
6.22 
Date 
Apr. 24.. 
Mav 9.. 
Mar. 26. 
Date 
Sept. 12. 
Oct. 28.. 
Oct. 23- 
Days 
140 
171 
210 
Av., 1914-1923. .. . 
104.4 
-2.9 
51.4 
Apr. 25i Sept. 29* 178 
i The last killing frost in the spring did not occur later than April 25 during 8 of the 10 years. 
2 The first killing frost in the fall did not occur earlier than September 29 during 8 of the 10 years. 
TRANSPORTATION AND MARKETS 
The Yakima Valley is traversed throughout its length by the main 
line of the Northern Pacific Railway and for a portion of its upper 
length by the Chicago, Milwaukee & St. Paul Railway. Branch 
■ 
HM 
HV - 1 ' 
HHH* mm ' 
Ml 
M 
Fig. 3.— Many of the farms in the Yakima Valley are served by good roads. A large part of the 
Sunset Trail, which passes through the valley, is paved 
lines of the Northern Pacific and the Union Pacific systems connect 
several of the towns in the valley. The county is well supplied with 
good roads. Much of the Sunset Trail, a national highway (fig, 
which passes through the valley, is paved. Approximately 80 per 
cent of the farmers own automobiles. 
Markets for the bulkier products are furnished by the cities of the 
Pacific coast, British Columbia, and Alaska. Apples, and occasion- 
ally potatoes, seek more distant markets throughout the United 
States. The railroad mileage from Yakima, Wash., to some of the 
principal markets is: Seattle, 164 miles; Spokane, 236; Portland, 
Oreg., 311; San Francisco, 1,0S3; St. Paul, 1,704; Chicago, 2,081. 
