TENTH ANNUAL YEAR BOOK— PART I 21 



Temperature. — The monthly mean temperature for the State, as shown 

 by the records of 116 stations, -was 15.1°, which is 8.5° below the normal 

 for Iowa. By sections the mean temperatures were as follows:; North- 

 ern section, 13.3°, which is 7.6° below the normal; Central section, 15.2°, 

 which is 8.6° below the normal; Southern section, 16.9°, which is 9.3° 

 below the normal. The highest monthly mean was 20.6°, at Keokuk, Lee 

 county, and the lowest monthly mean 10.1°, at Sibley, Osceola county. 

 The highest temperature reported was 60°, at Keosauqua, Van Buren 

 county, on the 1st; the lowest temperature reported was -26°, at Inwood, 

 Lyon county, on the 29th. The average monthly maximum was 49°, and 

 the average monthly minimum was -15°. The greatest daily range was 

 55°, at Sibley, Osceola county. The average of the greatest daily ranges 

 was 37°. 



PRECiriTATiON. — The average precipitation for the State, as shown by 

 the records of 114 stations, was 2.18 inches, which is .99 inch above the 

 normal. By sections the averages were as follows: Northern section, 

 1.75 inches which is .72 inch above the normal; Central section, 2.30 

 inches which is 1.10 inches above the normal; Southern section, 2.49 

 inches, which is 1.16 inches above the normal. The greatest amount, 6.10 

 inches, occurred at Clinton, Clinton county, and the least, .89 inch, at 

 Storm Lake, Buena Vista county, and at West Bend, Palo Alto county. 

 The greatest amount in twenty-four hours, 2.32 inches, occurred at Clinton, 

 Clinton county, on the 12th and 13th. 



The average depth of snowfall for the State was 13.7 inches; the great- 

 est depth was 29.0 inches at Sheldon, O'Brien county, and the least was 

 5.9 inches at West Bend, Palo Alto county. 



Measurable precipitation occurred on an average of 11 days. 



SuxsHiNE AND CLOUDINESS. — The average number of clear days was 10; 

 partly cloudy, 5; cloudy, 16. The duration of sunshine was below the 

 normal, the percentage of the possible amount being 35 per cent at 

 Charles City; 35 per cent at Davenport; 38 per cent at Des Moines; 36 

 per cent at Dubuque; 31 per cent at Keokuk, and 35 per cent at Sioux 

 City. 



Wind. — Northwest winds prevailed. The highest velocity reported v,^a9 

 50 miles per hour from the northwest, at Sioux City, Woodbury county, 

 on the 16th. 



