SEVENTH ANNUAL YEAR BOOK— PART II. 29 



The highest velocity reported was 50 miles per hour, from the north- 

 west, at Sioux City, on the 3d. The average number of clear days was 

 14; partly cloudy, 7; and cloudy, 7 days. 



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

 the records of 123 stations, was 27.1°, which is 5.7° below normal. The 

 mean temperatures by sections were as follows: Northern section, 25.3°; 

 Central section, 27.6°; Southern section, 28.4°. The highest monthly mean 

 was 30.7°, at Red Oak, and the lowest monthly mean was 22.8°, at Sibley. 

 The highest temperature reported was 65° at Pacific Junction on the 1st, 

 and the lowest reported was 14° below zero at Thurman on the 17th. 

 The greatest daily range was 42° at Bedford and Thurman. The average 

 of greatest daily ranges was 32.1°. The average precipitation for the 

 State, as shown by the records of 129 stations, was 2.34 inches, which 

 is 0.46 of an inch above normal. The averages by sections were as fol- 

 lows. Northern section, 2.56 inches; Central section, 2.14 inches; South- 

 ern section, 2.31 inches. The largest amount reported was 4.55 inches at 

 Burlington; and the least amount reported was 0.58 of an inch at Ames. 

 The greatest daily rainfall reported was 2.55 inches at Denison on the 

 3d. The average number of days on which .01 of an inch or more was 

 reported was 10. The prevailing direction of the wind was northwest. 

 The highest wind velocity reported was 58 miles an hour from the 

 northwest, at Sioux City, on the 21st. The average number of clear days 

 was 7; partly cloudy 7; cloudy days, 16. 



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

 records of 121 stations, was 52.5°, which is 3.1° above normal. By sections 

 the mean temperatures were as follows: Northern section, 50.5°; Central 

 section, 52.5°: Southern section, 54.4°. The highest temperature reported 

 was 94° at Ida Grove and Onawa on the 24th. The lowest temperature 

 reported was 22° at Clinton and Webster City on the 1st and at Odebolt on 

 the 6th. The average monthly maximum temperature was 85.4°, and the 

 average monthly minimum was 26.3°. The greatest daily range was 51* 

 at Denison and the average of greatest daily ranges was 42.4°. The aver- 

 age precipitation for the State, as shown by records of 128 stations, was 

 2.42 inches, which is 0.46 of an inch below the April normal. The aver- 

 ages by sections were as follows: Northern section, 2.06 inches; Central 

 section, 2.43 inches; Southern section, 2.76 inches. The lai'gest amount 

 reported was 5.55 inches at Glenwood, and the least amount reported was 

 .53 of an inch at Independence. The greatest daily rainfall reported was 

 2.75 inches at Sheldon on the 13th. The average number of days on which 

 .01 of an inch or more was reported was 8. The prevailing direction of 

 the wind was southeast. The highest velocity reported was 42 miles an 

 hour from the west at Sioux City, on the 25th. The average number of 

 clear days was 14; partly cloudy, 9; cloudy days, 7. 



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

 records of 122 stations, was 60.8°, which is u.l° above the normal for May. 

 By sections the mean temperatures were as follows: Northern section, 

 58.8°, which is 0.5° below the normal; Central section, 61.1°, which is 0.6° 

 above the normal; Southern section, 62.6, which is 0.6° above the normal. 

 The highest monthly mean was 65.5°, at Keokuk. The lowest monthly 



