PLATE i:' 



MEASURING SNOW IN SAN ANTONIO 

 CANYON 



Photo by Carpenter 



Arizona, the temperature rose 65° in 24 hours on June 22, ISSl (I). 

 The temperature has fallen more than 50° in 24 hours on several oc- 

 casions: At Abilene, Texas, the temperature dropped 63° in 16 hours 

 on Jan. 27, 1886 (I). 



Monthly and Annual ranges in temperature — Yakutsk, Siberia, 

 has the greatest difference (181.4 degrees) between the highest sum- 

 mer temperature and the lowest winter temperature (I). Miles Citj-, 

 Montana has the greatest range; in temperature in the United^ States; 

 maximum 112°, minimum 65° below zero, range, 177° (E). The tem- 

 perature range for the month of December, ISSO, was 117° at Fort 

 Benton, Montana (I). 



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