FIFTH ANNUAL YEAR BOOK — PART II. 145 



The highest temperature reported was 78.0 at Ottumwa on the 23d; lowest 

 temperature reported 3' at Columbus Junction on the 3d. The average 

 monthly maximum was 62.9°; average monthly minimum, 4.6°. Greatest 

 daily range, 55.0" at Sioux City; average of greatest daily ranges 36 8° 

 Average precipitation for the State as shown by records of 127 stations, 

 was 2.18 inches, which is 0.35 of an inch above normal. The aver- 

 ages by sections were as follows: Northern section, 174 inches, which 

 is .12 of an inch above normal; central section, 2.05 inches, which is .17 of 

 an inch above normal; southern section, 2.74 inches, which is .17 of an inch 

 above normal. The largest amount reported was 4.57 inches at Bedford; 

 least amount reported, .50 of an inch, at Ida Grove and Sioux City. The 

 greatest daily rainfall reported was 2.35 inches at Bedford on the 30th. 

 Average number of days on which .01 of an inch or more was reported, 7. 

 Prevailing direction of the wind, northwest; highest velocity reported, 68 

 miles per hour, from the northwest, at Sioux City, on the 2d. Average 

 number of clear days, 8; partly cloudy, 8; cloudy, 15 



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

 records of 115 stations, was 44.1% which is 5.2° below normal. By sections 

 the mean temperatures were as follows: Northern section 42.4°, which is 

 4.9*^ below normal; central section 44.4°, which is 4.4° below normal; 

 southern section 45.5' , which is 6.7° below normal. The highest monthly 

 mean was47.8' at Ottumwa; lowest monthly mean, 40.2° at Sibley. The 

 highest temperature reported was 86% at Sigourney and Forest City on the 

 22d and 23d; lowest temperature reported 13°, at Primghar on the 11th. 

 The average monthly maximum was 77.1°; average monthly minimum 

 20.9°. Greatest daily range, 48° at Forest City; average of greatest daily 

 ranges 37.2°. Average precipitation for the State, as shown by records of 

 126 stations, was 3.63 inches, which is .74 of an inch above normal. The 

 averages by sections were as follows: Northern section 2.73 inches, which 

 is .11 of an inch above normal; central section 3.48 inches, which is .58 of 

 an inch above normal; southern section 4.68 inches, which is 1.57 inches 

 above normal. The largest amount reported was 8.97 inches at St. Charles; 

 least amount reported, 1.52 inches at Elkader. The greatest daily rainfall 

 reported was 3.11 inches at Sigourney on the 25th. Average number of days 

 on which .01 of an inch or more was reported, 7. Prevailing direction of 

 the wind, northwest; highest velocity reported, 56 miles per hour, from the 

 northwest, at Sioux City, on the 11th. Average number of clear days, 15; 

 partly cloudy, 6; cloudy, 9. 



May. — The monthly mean temperature for the State, as shown by rec- 

 ords of 114 stations, was 59.6% which is 0.8' below normal. By sections 

 the mean temperatures were as follows: Northern section, 58.2% which is 

 1.1' below normal; central section, 59.9°, which .3' below normal, south- 

 ern section, 60.6% which is 1.4 below normal. The highest monthly mean 

 was 62.4°, at Burlington, Onawa, Keokuk and Ridgeway; lowest monthly 

 mean, 56.4% at Sibley. The highest temperature reported was 93% at 

 Ridgeway, on the 22d; lowest temperature reported, 27°, at Charles City, 

 on the 15th. The average monthly maximum was 85.8°; average monthly 

 minimum, 34.3°; greatest daily range, 47°, at Monticello and Norwood; 

 average of greatest daily ranges, 37 3°. Average precipitation for the 

 State, as shown by records of 126 stations, was 3.78 inches, which is 2.35 of 

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