EIGHTH ANNUAL YEAR BOOK— PART I. 9 



5.41 inches, which is 0.90 of an inch above the normal. The largest amount 

 reported was 9.33 inches at Northwood, and the least amount reported was 

 2.07 inches at Davenport. The greatest daily rainfall reported was 3.60 

 inches, at Clear Lake and Waukee, on the 9th. The average number of days 

 on which .01 of an inch or more was reported was 11. 



Wind and Weather. — The prevailing direction of the wind was south- 

 west. The highest velocity reported was 44 miles per hour, from the west, 

 at Sioux City, on the 23d. The average number of clear days was 14, 

 partly cloudy 9, and cloudy 7. 



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

 records of 117 stations, was 73.7°, which is 0.4° below the normal. By 

 sections the mean temperatures were as follows: Northern section, 71.9°, 

 which is 1.1° below the normal; Central section, 74.1°, which is 0.1° 

 below the normal. Southern section, 75.1°, which is 0.1° below the normal. 

 The highest monthly mean was 76.9°, at Ottumwa, and the lowest monthly 

 mean was 69.1° at Fayette. The highest temperature reported was 102°, 

 at Thurman, on the 5th, and the lowest temperature reported was 41°, at 

 Alton, on the 2d. The average monthly maximum was 93.9°, and the average 

 monthly minimum was 53.6. The greatest daily range was 42°, at Esther- 

 ville. The average of greatest daily ranges was 30.4°. 



Precipitation. — The average precipitation for the state, as shown by 

 the records of 126 stations, was 7.27 inches, which is 2.92 inches above the 

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

 7.02 inches, which is 2.79 inches above the normal; Central section, 7.23 

 inches, which is 2.93 inches above the normal; Southern section, 7.56 

 inches, which is 3.02 inches above the normal. The largest amount re- 

 ported was 13.66 inches at Belle Plaine; the least amount reported was 

 3.97 inches at Elkader. The greatest daily rainfall reported was 5.30 

 inches, at Belle Plaine, on the 9th. The average number of days on which 

 .01 of an inch or more was reported was 13. 



Wind and Weather. — The prevailing direction of the wind was south- 

 west; the highest velocity reported was 48 miles per hour. 



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

 records of 113 stations, was 71.1°, which is 0.8° below the normal. By 

 sections the mean temperatures were as follows: Northern section, 69.5°, 

 which is 0.9° below the normal; Central section, 71.0°, which is 0.8° below 

 the normal; Southern section, 72.7°, which is 0.8° above the normal. The 

 highest monthly mean was 75.3° at Ottumwa. The lowest monthly mean 

 was 67.6 at Sibley. The highest temperature reported was 99°, at Ottumwa, 

 on the 31st. The lowest temperature reported was 37° at Osage on the 

 13th. The average monthly maximum was 92.9°; the average monthly 

 minimum was 46.9°. The greatest daily range was 49° at Osage. The 

 average of greatest daily ranges was 32.2°. 



Precipitation. — The average precipitation for the state, as shown by 

 records of 123 stations, was 4.33 inches, which is 0.57 of an inch above 

 the normal. The average by sections was as follows: Northern section, 

 3.99 inches, which is 0.86 of an inch above the normal; Central section, 

 4.69 inches, which is 0.82 of an inch above the normal; Southern section, 

 4.30 inches, which is 0.54 of an inch above the normal. The largest amount 



