598 TWENTY-THIRD ANNUAL YEAR BOOK— PART VIII 



COMPARATIVE DATA FOR THE STATE— NOVEMBER. 



YEAR 



1890 



1891 



1892 __ 



1S93 



1694 



1895 



1897 



1898 



1899 



19U0 



1901 



190*2 



1903 I 



1904 



1905 i 



1906 I 



1907 ._ 



1908. J 



1909 .1 



1910 



1911 



1912 _ 



1913 I 



1914. __ 



1915 _. 



1916 



1917. 



1918_ __ 



1919 



1920 



1921 



1922 



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

 and less than .05 inch snowfall. 



DECEMBER 



December was an unusually pleasant month with the temperature very 

 near the normal. The month opened with a mild period extending to the 

 5th over most of the State, followed by a rather severe cold period that con- 

 tinued through the 20th. Zero weather was general over the entire State. 

 A number of stations in the northern portion of the State reported zero 

 weather on 12 days which gradually diminished to the south and at 

 Keokuk zero was reached on but a single day. From the 21st till the end of 

 the month an unusually mild period prevailed, and while no abnormally 

 high temperatures were experienced, the high record for Christmas was 

 exceeded at many places in all portions of the State. For the State as a 

 whole the temperature averaged 0.1° higher than the normal, the north- 

 ern half being generally below and the southern half generally above the 

 normal. 



The precipitation, 0.37 inch, was with one exception the least of record 

 for December, the same amount having been recorded in 1910. The aver- 

 age number of days with 0.01 inch or more, of precipitation was three and 

 this also equaled the record for December. There were but two periods 



