20 IOWA DEPARTMENT OF AGRICULTURE 



OCTOBER NORMALS FOR IOWA— 1890-1912. 



Normal temperature for October, 51.8°. 



Warmest October, 1900, with mean temperature of 59.3°. 



Coldest October, 1895, with mean temperature of 46.0°. 



Normal October precipitation, 2.32 inches. 



Wettest October, 1900, with total precipitation of 3.91 inches. 



Driest October, 1895, with total precipitation of 0.47 inches. 



Normal snowfall for October, 0.4 inch. 



Two stations reported measurable amounts, and several reported a trace 

 of snowfall on October 31, 1912, all of which were in the southern part of 

 the state. 



Greatest snowfall in October, 3.6 inches in 1898. 



Average number of days with 0.01 inch or more precipitation, 6. 



Prevailing direction of wind, northwest. 



Average number of clear daj^s, 16; partly cloudy, 7; cloudy, 8. 



NOVEMBER. 



November, 1912, was an ideal month for gathering the largest corn 

 crop ever produced in this state, and for all other outdoor work. The 

 weather was mild and dry, with a great excess of sunshine, there being 

 an average of 18 clear days, 8 partly cloudy, 4 cloudy, and an average of 

 only 2 days with an appreciable amount of precipitation. During the past 

 23 years, there have been only four Novembers that gave a higher mean 

 temperature than obtained during the past month, and only one with a 

 smaller number of rainy days. While a few of the nights were moderately 

 cold, the days were generally mild and pleasant, and corn husking was in- 

 terfered with on only one day, so that rapid progress was made in that 

 work, and at the close of the month nearly all of the crop had been har- 

 vested. With the exception of a rather severe tljunderstorm at Clarinda 

 on the 5th, no storms of consequence were reported, and but little snow 

 fell; the average snowfall being a trace in the northern and central sec- 

 tions of the state, and 0.1 inch in the southern section. The greatest 

 monthly snowfall was 1.0 inch at Stockport, Van Buren County. 



Tempeeatuee. — The monthly mean temperature for the state, as shown 

 by the records of 112 stations, was 40.1°, or 4.2° higher than the normal 

 for Iowa. By sections the mean temperatures were as follows: Northern, 

 38.0°, or 4.3° higher than the normal; Central, 40.3°, or 4.6° higher than 

 the normal; Southern, 41.9°, or 3.7° higher than the normal. The highest 

 monthly mean was 44.4°, at Keokuk, Lee County; and the lowest monthly 

 mean, 34.7°, at Rock Rapids, Lyon County. The highest temperature re- 

 ported was 77°, at Northboro, Page County, on the 11th; and the lowest 

 temperature reported was 6°, at Inwood, Lyon County, on the 24th. The 

 average monthly highest was 69°; and the average monthly lowest was 

 14°. The greatest daily range was 47°, at Lake Park, Dickinson County, 

 and at Rock Rapids, Lyon County. The average of the greatest daily 

 ranges was 37°. 



Precipitation. — The average precipitation for the state, as shown by 

 the records of 123 stations, was 0.98 inch, or 0.41 inch less than the normal. 

 By sections the averages were as follows: Northern, 0.95 inch, or 0.36 



