648 



IOWA DEPARTMENT OF AGRICULTURE 



COMPARATIVE DATA FOE THE STATE— AUGUST . 



T. indicates an amount too small to measure, or less than .005 inch precipita- 

 tion and less than .05 inch snowfall. 



SEPTEMBER. 



The outstanding feature of the weather for September was the unusually 

 favorable condition that prevailed from the 10th to the 28th, inclusive. 

 Aside from the first day, which was warm, the first nine days were cold 

 and wet and the prospects for a normal amount of the corn crop maturing 

 were discouraging, as both July and August were too cool for the normal 

 development of that crop. However, on the 10th a warm period that re- 

 sembled July weather, set in and it continued unbroken till the 28th, 

 when it was brought to an abrupt ending, with heavy to killing frosts over 

 most of the western and central portions and light to heavy frosts over 

 the eastern portion. During this warm period corn made rapid progress 

 toward maturity and when frost came about 85 per cent of the crop was 

 safe and fortunately over the western half of the State, where the frost 

 was most severe, the greater per cent of the crop was out of danger of 

 frost and much was in the shock. 



The precipitation occurred principally during the first nine days but 

 periods of general precipitation also occurred on the 23d and 26th but the 

 amounts on these days were mostly light. The greatest precipitation 



