PART II. 



REPORT OF THE IOWA WEATHER AND CROP 

 SERVICE FOR 1903. 



WITH A SUMMARY OF IOWA WEATHER AND CROPS 

 FOR A SERIES OF YEARS. 



John R. Sage, Director. 



CLIMATOLOGY OF THE YEAR 1903. 



Barometer.— The mean pressure for the year was 30.04 inches. The 

 highest observed pressure was 30.68 inches on February 18th and Decem- 

 ber 14th at Des Moines; the lowest pressure, 29.19 inches, on October 6th 

 at Sioux City. Range for the State 1.49 inches. 



Temperature. — The mean temperature for the State was 47.3''. 

 which is 0.3° below normal. The highest temperature reported was 

 101° on August 24th at Logan. The lowest temperature reported was 27° 

 below zero on December 13th at Sibley. Range for the year 128°. 



Precipitation. — The average amount of rain and melted snow for 

 the year, as shown by complete records of ninety-five stations, was 35.66 

 inches, which is 4.75 inches above the normal, and 8.65 inches below the 

 average am^ount for 1902. The greatest amount recorded at any station 

 for the year was 50.53 inches at Onawa. Least amount recorded 26.41 

 inches at Ames. The greatest monthly rainfall was 17.74 inches at Wood- 

 burn in August; least monthly amount, a trace at Afton and thirteen 

 <Dther stations in January, November and December; the greatest amount 

 in any consecutive twenty-four hours was 11.22 inches at Cherokee, 

 August 27th. The average number of days in which .01 inch or more of 

 rain fell was ninety-two. 



Wind and Weather. — The prevailing direction of wind was northwest-.. 

 Highest velocity reported, seventy-two miles an hour, in Sioux City, from 

 the northwest and southeast on January 6th and May 21st. Average daily 



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