TWENTY-FIRST ANNUAL YEAR BOOK— PART VIII 640 



occurred over about one third of the State in a strip running north and 

 south in the middle section. Over much of the eastern and western sec- 

 tions the precipitation which had been deficient in previous months con- 

 tinued deficient during September and over large areas the soil was too 

 hard and dry to prepare for winter grain, but where wheat had been 

 seeded under favorable conditions the early sown was up in good condition 

 at the end of the month. 



Strong winds prevailed generally from the 20th to the 25th which 

 blew down corn and many fields were in a badly tangled condition, but 

 they hastened the maturity of the corn. 



A very strange meteor was observed by Mr. Arthur Betts, at Nora 

 Springs, during the early evening of September 6th. It was at an eleva- 

 tion of about 30° in the west-southwest and of about the brilliancy of 

 Venus. It gradually faded out of existence, leaving no trail behind it. 



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

 29.98 inches. The highest recorded was 30.43 inches, at Sioux City and 

 Omaha, Neb. on the 29th, and the lowest was 29.38 inches, at Sioux City, 

 on the 23d. The monthly range was 1.05 inches. 



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

 records of 94 stations was 66.5°, or 3.1° higher than the normal. By di- 

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

 Northern, 65.1°, or 3.3° higher than the normal; Central, 66.6°, or 3.1° 

 higher than the normal; Southern, 67.7°, or 2.7° higher than the normal. 

 The highest monthly mean was 70.0°, at Burlington, and the lowest was 

 62.8°, at Northwood. The highest temperature reported was 98° at Onawa, 

 on the 19th, and Maquoketa on the 20th, and the lowest was 24° at Little 

 Sioux and Sanborn, on the 30th. The temperature range for the State 

 was 74°. 



Humidity. The average relative humidity for the State at 7:00 a. m. 

 was 83 per cent and at 7:00 p. m. was 61 per cent. The mean for the 

 month was 72 per cent, which is 2 per cent below normal. The highest 

 monthly mean was 80 per cent at Charles City, and the lowest was 67 per 

 cent at Sioux City. 



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

 records of 102 stations, was 3.30 inches, or 0.06 inch below the normal. 

 By divisions, the averages were as follows: Northern, 3.54 inches, or 0.49 

 inch more than the normal; Central, 2.86 inches, or 0.60 inch less than the 

 normal; Southern, 3.51 inches, or 0.05 inch less than the normal. The 

 greatest amount, 7.21 inches, occurred at Afton, and the least, 0.69 inch, 

 at Cedar Rapids. The greatest amount in 24 consecutive hours, 3.77 inches, 

 occurred at Boone on the 9th. 



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

 highest velocity reported from a regular Weather Bureau Station was at 

 the rate of 53 miles an hour from the south at Sioux City, on the 25th. 



SunsUhie. The average per cent of the possible amount of sunshine was 

 68, which is 5 per cent above normal. The per cent of the possible amount 



