TWENTY-FIRST ANNUAL YEAR BOOK— PART VIII 641 



partures. The greatest deficiency occurred over the central and south- 

 west portions and at the close of the month vegetation was needing rain 

 badly over large areas in the drier sections, while at some points fields 

 were too wet to be worked properly. Conditions generally were favorable 

 and most field crops advanced to nearly normal by the end of the month. 



Destructive winds occurred on the 1st, 8th, 9th and 15th. On the 1st 

 high westerly winds caused slight damage in the vicinity of Piano and 

 Centerville in Appanoose county. On the 8th strong southwest winds that 

 reached hurricane force in places occurred generally in Plymouth county, 

 the northern half of Woodbury county and portions of Cherokee, Sioux 

 and O'Brien counties. The storm began about 10 or 11 p. m. and con- 

 tinued from one to two hours at many places. The most destructive wind 

 was in the vicinity of Sioux City and around Pierson. Some crops were 

 damaged but the principal loss was to buildings and machinery. At Sioux 

 City the damage was estimated at $100,000, but estimates are not avail- 

 able at other places. Strong to high northwest winds swept Fayette and 

 portions of Chickasaw, Bremer and Clayton counties during the early 

 morning of the 9th, causing about $6,000 damage in western Fayette 

 county and slight damage in other sections. High winds, of near hur- 

 ricane force, at Anamosa, Jones county, on the 15th caused considerable 

 damage. 



A tornado occurred in the vicinity of Correctionville and Pierson, near 

 the corners of W6odbury and Cherokee counties, from 11:00 to 11:30 p. m. 

 of the 8th. The storm moved from southwest to northeast for a distance 

 of about five miles and caused about $60,000 damage. Also on the morn- 

 ing of the 9th, a slight tornado occurred at Westgate, Fayette county, 

 causing damage estimated at $8,000. No persons were killed or injured in 

 either storm. 



Hail occurred at many places during the month, mostly on the 7th 

 and 8th. 



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

 29.93 inches. The highest recorded was 30.33 inches at Charles City, on 

 the 3d, and the lowest was 29.46 at Charles City and Sioux City on the 

 15th. 



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

 records of 99 stations, was 70.7°, or 1.6° higher than the normal. By 

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

 lows: Northern, 69.4°, or 1.8° higher than the normal; Central, 71.1°, or 

 1.8° higher than the normal; Southern, 71.5°, 1.2° higher than the normal. 

 The highest monthly mean was 74.0°, at Burlington and Cedar Rapids, and 

 the lowest was 67.4°, at Postville. The highest temperature was 99° at 

 Cedar Rapids and Onawa, on the 13th, and the lowest was 40°, at Onawa 

 on the 4th, Bedford, Earlham, Glenwood, Guthrie Center, Little Sioux 

 and Thurman on the 5th, and Estherville on the 17th. The temperature 

 range for the State was 59°. 



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