472 IOWA DEPARTMENT OF AGRICULTURE 



than the normal. The greatest amount, 7.84 inches, occurred at Aller- 

 ton, and the least, 2.05 inches, at Dubuque. The greatest amount in any 

 24 consecutive hours, 2.05 inches, occurred at Chariton on the 28th. 



Snmofall. — The average snowfall for the State was 3.8 inches, or 2.0 

 inches more than the normal. The averages by divisions were: North- 

 ern, 3.0 inches; Central, 3.0 inches; Southern, 5.4 inches. The greatest 

 amount, 15.0 Inches, occurred at Allerton. 



Wind. — The prevailing direction of the wind was from the northeast. 

 The highest velocity reported from a regular weather Bureau station 

 was at the rate of 47 miles an hour from the northwest at Sioux City 

 on the 25th. 



Sunshine and Cloudiness. — The average per cent of the possible amount 

 of sunshine was 45, or about 15 per cent lower than the normal. Tha 

 per cent of the possible amount at the regular Weather Bureau stations 

 was as follows: Charles City, 37; Davenport, 48; Des Moines, 42; Dubu- 

 que, 53; Keokuk, 50; Sioux City, 40; Omaha, Neb., 51. At Charles City, 

 Davenport, Des Moines and Sioux City, the percentages were the least of 

 record for April. Clear days averaged 9; partly cloudy 7, cloudy, 14, 

 the latter being the greatest of record for April. 



Miscellaneous Phenomena. — Earthquake; Keosauqua, 3 p. m., 19th. 

 Dense fog at a few stations on 17th and 30th. Hail, 17th, 19th, 20th, 24th, 

 28th, 29th and 30th. Sleet, 1st, 7th, 16th, 17th, 26th, 27th, 28th and 30th, 

 Thunderstorms, 3d, 7th, 11th, 16th, 17th, 18th, 19th, 20th, 22d, 23d, 24th, 

 25th, 28th and 29th. 



Birds first observed. — Earlham: turtle doves, 5th, mocking birds, 18th. 



Frogs appeared at Earlham on the 10th. 



Rivers. — Flood stages did not occur in any of the rivers, but all of them 

 carried considerably more than the normal volume of water. In the 

 boundary rivers, distinct crests, originating from the spring break-up at 

 the headwaters, passed along between the 17th and 27th in the Missis- 

 sippi, and betv/een the 13th and 19th in the Missouri. The short, in- 

 terior rivers fell steadily till about the 18th to 20th, after which a slight 

 rise resulted from frequent, general and heavy precipitation. At the close 

 of the month the soil was saturated and other natural storage well filled 

 so that the streams will probably respond rather quickly to heavy rain- 

 falls. 



