FOURTEENTH ANNUAL YEAR BOOK— PART XI. 791 



Wi>"D. — The prevailing direction of the wind was south. The highest 

 velocity reported was 54 miles an hour from the east, at Sioux City, on 

 May 13th, and from the northwest at the same station, on November 7th. 



Sunshine and Cloudiness. — The average number of clear days was 182; 

 partly cloudy, 89; cloudy, 94, as against 181 clear days, 91 partly cloudy 

 days and 89 cloudy days in 1912. More than the normal amount of sun- 

 shine was experienced. 



MONTHLY SUMMARIES 

 JANUARY. 



January was an unusually mild and pleasant month, and favorable for 

 all out-door operations and for live stock. The temperature was above 

 and the precipitation below the normal. There was no bad storms and 

 but little snow. The only cold period of importance was from the 5th 

 to the 14th, inclusive, when the minimum temperature was below zero 

 on several days; the coldest day at most stations being the 12th. From 

 the 15th to the 30th, the temperature was moderate, and scarcely any 

 snow fell after the 7th. A cold wave with temperature below zero passed 

 over the state on the last day of the month. During the prevalence of the 

 lowest temperature, in the first half of the month, the ground was gen- 

 erally well covered with snow, but after the 15th, the surface was mostly 

 bare. So far as can be ascertained no material damage has been caused 

 to fall wheat and rye, or to fruit buds. 



Temperature. — The monthly mean temperature for the State, as shown 

 by the records of 115 stations, was 20.9°, or 1.6'' higher than the normal 

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

 17.5°, or 1.3° higher than the normal; Central, 21.1°, or 1.9° higher than 

 the normal; Southern, 24.2°, or 1.8° higher than normal. The highest 

 monthly mean was 28.2°, at Keokuk, Lee County; and the lowest monthly 

 mean, 13.8°, at Forest City, "Winnebago County. The highest temperature 

 reported was 62°, at Bedford, Taylor County, on the 25th; the lowest tem- 

 perature reported was — 25°, at Council Bluffs, Pottawattamie County, and 

 at Thurman, Fremont County, on the 8th. The average monthly maxi- 

 mum was 53°, and the average monthly minimum was —14°. The greatest 

 daily range was 51°, at Inwood, Lyon County. The average of the greatest 

 daily ranges was 40°. 



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

 the records of 121 stations, was 0.77 inch, or 0.28 inch less than the normal. 

 By sections the averages were as follows: Northern, 0.41 inch, or 0.41 

 inch less than the normal; Central, 0.90 inch, or 0.20 inch less than the 

 normal; Southern, 0.99 inch, or 0.25 inch less than the normal. The 

 greatest amount, 2.05 inches, occurred at (irinnell, Poweshiek County, and 

 the least, 0.04 inch, at LeMars, Plymouth County. The greatest amount 

 in any 24 consecutive hours, 1.08 inches, occurred at Grinnell, Poweshiek 

 County, on the 22d-23d. Measurable precipitation occurred on an average 

 of 5 days. 



