TWENTIETH ANNUAL YEAR BOOK— PART VIII 709 



ditlon in connection with the large number of cloudy days and deficient 

 sunshine delayed the drying of corn so that at the end of the month very 

 little had been cribbed. Winter wheat in the early sown fields is up to a 

 good stand but fhe acreage has been grealy reduced. Notwithstanding the 

 frequent rains, the roads were in bad condition for but short periods, but 

 over a large portion of the eastern half of the State it was impossible to 

 haul full loads of corn from the fields the greater part of the month. 



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

 o0.03 inches. The highest recorded was 30.45 inches, at Sioux City, on the 

 10th, and the lowest was 29.39 inches at Omaha, Nebr., on the 8th. The 

 monthly range was 1.06 inches. 



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

 ords of 101 stations, was 50.7°, or 0.1° lower than the normal. By divi- 

 sions, three tiers of counties to the division, the means were as follows: 

 Northern, 47.6°, or 1.4° lower than the normal; Central, 51.3°, or 0.4= 

 higher than the normal; Southern, 53.2", or 0.6° higher than the normal. 

 The highest monthly mean was 56.5°, at Keokuk, and the lowest was 43.8°, 

 at Rock Rapids. The highest temperature reported was 89°, at Nora 

 Springs, Carroll and Clarinda, on the 2d; the lowest was 8°, at Inwood, on 

 the 28th. The temperature range for the State was 81°. 



Humidity. The average relative humidity for the State at 7 A. M. 

 was 85 per cent, and at 7 P. M. it was 70 per cent. The mean for the 

 month was 78 per cent, or 6 per cent greater than the normal. The high- 

 est monthly mean was 81 per cent at Davenport, and the lowest was 74 

 per cent at Omaha, Nebr. The lowest observed was 30 per cent at Sioux 

 City on the 7th. 



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

 records of 110 stations was 3.02 inches, or 0.56 inch greater than the 

 normal. By divisions the averages were as follows: Northern, 2.30 

 inches, or 0.04 inch less than the normal; Central, 3.99 inches, or 1.5^1 

 inches greater than the normal; Southern, 2.77 inches, or 0.23 inch greater 

 than the normal. The greatest amount, 8.65 inches, occurred at Delaware, 

 and the least, 0.45 inch, occurred at Sioux Center. The greatest amount 

 in 24 consecutive hours, 3.85 inches, occurred at Grundy Center, on the 4th. 



Snow. Light snow occurred in the northwest portion of the State on 

 the 16th, 24th, 25th, 26th and 27th, and at its maximum totaled 1.9, at 

 Storm Lake. The snow was soon melted. 



Wind. The prevailing direction of the wind was south. The highest 

 velocity reported from a regular Weather Bureau station was 40 miles 

 per hour, from the northwest, at Sioux City on the 9th. 



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

 of sunshine was 49, or 13 per cent less than the normal. The per cent 

 of the possible amount at the regular Weather Bureau stations was as 

 follows: Charles City, 42; Davenport, 51; Des Moines, 51; Dubuque, 51; 

 Keokuk, 62; Sioux City, 42; Omaha, Nebr., 49. 



Miscellaneous Phenomena. Aurora, 1st, 2d, 3d, 15th, 22d, 23d, 26th, 29th, 

 31st. Fog, 1st, 4th, 9th, 12th, 13th, 14th. 17th, 20th, 23d, 24th, 25th, 26th. 



