10 IOWA DEPARTMENT OF AGRICULTURE 



0.9° above the normal. The highest monthly mean was 53.0°, at Keokuk, 

 Lee County, and the lowest monthly mean, 46.4°, at Estherville, Emmet 

 County. The highest temperature reported was 84°, at Inwood, Lyon 

 County, on the 5th; the lowest temperature reported was 20°, at Decorah, 

 Winneshiek County, on the 3d. The average monthly maximum was 75°, 

 and the average monthly minimum was 27°. The greatest daily range was 

 45°, at Cedar Rapids, Linn County. The average of the greatest daily 

 ranges was 36°. 



PBEcn^iTATiox. — The average precipitation for the State, as shown by the 

 records of 122 stations, was 2.66 inches, which is 0.17 inch below the 

 normal. By sections the averages were as follows: Northern section, 2.51 

 inches, which is 0.04 inch above the normal; Central section, 2.51 inches, 

 which is 0.36 inch below the normal; Southern section, 2.97 inches, which 

 is 0.20 inch below the normal. The greatest amount, 5.66 inches, occurred 

 at Creston, Union County, and the least 0.78 inch, at Waverly, Bremer 

 County. The greatest amount in twenty-four hours, 1.83 inches, occurred 

 at Northwood, Worth County, on the 13th. Measurable precipitation oc- 

 curred on an average of 8 days. 



Snow. — A measurable amount of unmelted snowfall occurred at 36 

 stations, the average fall being 4.0 inches. Practically all the snow for 

 the month fell on the 17th. The average for the State was 1.1 inches. 

 By sections the averages were as follows: Northern, 0.1 inch; Central, 

 1.4 inches; Southern, 1.8 inches. 



Sunshine and Cloudiness. — The average number of clear days was 13; 

 partly cloudy, 8; cloudy, 9. The duration of sunshine was nearly normal, 

 the percentage of the possible amount being 70 at Charles City; 60 at 

 Davenport; 72 at Des Moines; 64 at Dubuque; 52 at Keokuk; and 56 at 

 Sioux City. 



Wind. — Southwest winds prevailed. The highest velocity reported was 

 48 miles per hour from the south, at Sioux City, Woodbury County, on 

 the 25th. 



APRIL NORMALS FOR IOWA— 1890-1912. 



Normal temperature for April, 49.0°. 



Warmest April, 1896, with mean temperature of 54.5°. 



Coldest April, 1907, with mean temperature of 41.5°. 



Normal April precipitation, 2.94 inches. 



Wettest April, 1897, with total precipitation of 5.35 inches. 



Driest April, 1907, with total precipitation of 1.32 inches. 



Average depth of snowfall in April, 2.0 inches, (1892 to 1912, inclusive). 



Greatest snowfall in April, 6.0 inches, in 1893. 



Least snowfall in April, trace, in 1897, 1898, and 1902. 



Average number of days with 0.01 inch or more of precipitation, 8. 



Prevailing direction of wind, northwest. 



Average number of clear days, 12; partly cloudy, 9; cloudy, 9. 



