528 IOWA DEPARTMENT OF AGRICULTURE" 



failed to germinate last fall, germinated in March. The mild, dry weather 

 was especially favorable for the lamb and pig crop. 



. Pressure. The mean pressure (reduced to sea level) for the State was 

 30.03 inches. The highest recorded was 30.71 inches, at Sioux City, on the 

 15th; and the lowest was 29.12 inches, at Des Moines, la., and Omaha, 

 Nebr., on the 9th. The monthly range was 1.59 inches. 



Temperature. The mean temperature for the State, as shown by the 

 records of 100 stations, was 42.9°, or 9.6° higher than the normal. By 

 divisions, three tiers of counties to the division, the means were as fol- 

 lows: Northern, 40.0°, or 9.5° higher than the normal; Central, 43.1°, or 

 9.5° higher than the normal; Southern, 45.6°, or 9.7° higher than the nor- 

 mal. The highest monthly mean was 47.8° at Northboro and the lowest 

 monthly mean was 36.8°, at Elkader. The highest temperature reported 

 was 85°, at Denison, on the 19th. The lowest temperature reported was 

 zero, at Sibley, on the 10th. 



Humidity. The average relative humidity for the State at 7 a. m. was 

 74 per cent, and at 7 p. m. it was 51 per cent. The mean for the month 

 was 63 per cent, or about 10 per cent lower than the normal. The highest 

 monthly mean was 72 per cent, at Charles City, and the lowest was 55 at 

 Omaha. Very low humidity prevailed after the 15th. On the 18th at 

 Omaha 8 per cent at 7 p. m., at Des Moines 5 per cent at 2 and 3 p. m., and 

 at Keokuk 14 per cent at noon are respectively the lowest ever observed 

 at those stations. 



Precipitation. The average precipitation for the State, as shown by 

 the records of 101 stations, was 0.63 inches, or 1.14 inches less than the 

 normal. By divisions the averages were as follows: Northern, 1.12 inches, 

 or 0.41 inch less than the normal; Central, 0.54 inch, or 1.33 inches less 

 than the normal; Southern, 0.23 inch, or 1.69 inches less than the normal. 

 The greatest amount, 2.12 inches, occurred at Dubuque, and the least, a 

 trace, at Harlan. The greatest amount in any 24 consecutive hours, 1.65 

 inches, occurred at Dubuque on the 13th-14th. 



Snow. The average snowfall for the State was 2.6 inches, or 2.7 inches 

 less than the normal. The greatest amount, 15.5 inches, occurred at 

 Northwood; Burlington, Fort Madison, Lacona and Oskaloosa reported no 

 snow, and 18 stations reported only a trace. 



Wind. The prevailing direction of the wind was from the southwest. 

 The highest velocity reported from a regular Weather Bureau station was 

 at the rate of 52 miles an hour from the southwest, this occurring at Keo- 

 kuk on the 9th. 



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

 of sunshine was 73, or about 16 per cent higher than the normal. The per 

 cent of the possible amount at the regular Weather Bureau station was as 

 follows: Charles City, 65; Davenport, 72; Des Moines, 77; Dubuque, 76; 

 Keokuk, 68; Sioux City, 77; Omaha, Nebr., 76. 



Miscellaneous Phenomena. Aurora, 7th, 8th, 9th. See special article, 

 page 15. Birds (migration of), Corydon, ducks on the 8th; Earlham, black 

 birds on the 9th; Baxter, robins on the 11th; Boone, robins on the 4th; 

 Nora Springs, wild geese and robins on the 18th, black birds on the 20th, 



