THIRD ANNUAL YEAR BOOK— PART III. 163 



JUNE. — The month was unseasonably cool, especially in the last half, 

 The daily mean temperature as shown by the records of 113 stations was 

 65.2 degrees, which is 4.8 degrees below the June normal. The means by 

 sections were as follows: Northern section, 64 degrees; central section, 

 65.4 degrees; southern section, 66.3 degrees. The highest monthly mean 

 was 69.2 degrees at De Soto; lowest, 60.2 degrees at Cresco. The highest 

 temperature reported was 97 degrees at Keosauqua on the 10th; lowest, 

 32 degrees at Sibley on the 22d. The average monthly maximum was 

 89.9 degrees; average monthly minimum, 38.4 degrees. The greatest 

 daily range was 42 degrees at Larrabee. Average of greatest daily 

 ranges, 33 degrees. The average precipitation for the state as shown 

 by the records of 120 stations was 7.16 inches which is 2.90 inches above 

 normal. The averages by sections were as follows: Northern section, 

 5.54 inches; central section, 8.11 inches; southern section, 7.83 inches. 

 The largest amount reported was 16.04 inches at Grundy Center; least 

 amount reported, 1.46 inches at Sheldon. The greatest daily rainfall re- 

 ported was 6.60 inches at Buckingham on the 5th. The average num- 

 ber of days on which .01 inch or more of rainfall was reported, 14. Pre- 

 vailing direction of wind, southeast and northwest; highest velocity re- 

 ported, 48 miles per hour from the west at Sioux City, on the 15th. Tno 

 average number of clear days was 8: partly cloudy, 11; cloudy, 11. 



JULY. — The monthly mean temperature for the state, as shown by 

 records of 108 stations, was 73.1 degrees, which is 0.6 degrees below nor- 

 mal. By sections the mean temperatures were as follows: Northern sec- 

 tion, 71.9 degrees; central section, 73.3 degrees; southern section, 74.2 de- 

 grees. The highest monthly mean was 76.5 degrees at Keokuk; lowest 

 monthly mean was 70.2 degrees, at Alta, Fayette, New Hampton and 

 Northwood. The highest temperature reported was 99 degrees, at St. 

 Charles on the 17th; lowest temperature reported, 41 degrees, at Clinton 

 on the 1st. The average monthly maximum was 92.9 degrees; average 

 monthly minimum, 50.9 degrees. Greatest daily range, 43 degrees at 

 Plover; average of greatest daily ranges 30.4 degrees. Average precipita- 

 tion for the state, as shown by records of 125 stations, was 8.67 inches, 

 which is 4.99 inches above normal. The averages by sections were a^ 

 follows: Northern section, 8.35 inches; central section, 8.84 inches: 

 southern section, 8.82 inches. The largest amount reported was 13.57 

 inches, at Odeboldt; least amount reported, 4.87 inches, at Keokuk. The 

 greatest daily rainfall reported was 6.25 inches, at Ovid on the 17th and 

 18th. Average number of days on which .01 of an inch or more was 

 reported 13. Prevailing direction of the wind, southwest; highest veloc- 

 ity reported, 47 miles per hour, from the south, at Sioux City, on the 5th. 

 Average number of clear days, 14; partly cloudy, 10; cloudy, 7. 



AUGUST. — The monthly mean temperature for the state, as shown 

 by records of 109 stations, was 69.1 degrees, which is 2.00 degrees below 

 normal. By sections the mean temperatures were as follows: Northern 

 section, 67.4 degrees; central section, 69.2 degrees; southern section, 70.6 

 degrees. The highest monthly mean was 72.8 degrees at Council Bluffs: 

 lowest monthly mean, 65.2 degrees, at Dows. The highest temperature re- 



